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GE2020: The Roar of the Swing Voter

Hi everyone, this is my first ever post here.
I run a little website called The Thought Experiment where I talk about various issues, some of them Singapore related. And one of my main interests is Singaporean politics. With the GE2020 election results, I thought I should pen down my take on what us as the electorate were trying to say.
If you like what I wrote, I also wrote another article on the state of play for GE2020 during the campaigning period, as well as 2 other articles related to GE2015 back when it was taking place.
If you don't like what I wrote, that's ok! I think the beauty of freedom of expression is that everyone is entitled to their opinion. I'm always happy to get feedback, because I do think that more public discourse about our local politics helps us to be more politically aware as a whole.
Just thought I'll share my article here to see what you guys make of it :D
Article Starts Here:
During the campaigning period, both sides sought to portray an extreme scenario of what would happen if voters did not vote for them. The Peoples’ Action Party (PAP) warned that Singaporeans that their political opponents “might eventually replace the government after July 10”. Meanwhile, the Worker’s Party (WP) stated that “there was a real risk of a wipeout of elected opposition MPs at the July 10 polls”.
Today is July 11th. As we all know, neither of these scenarios came to pass. The PAP comfortably retained its super-majority in Parliament, winning 83 out of 93 elected MP seats. But just as in GE2011, another Group Representation Constituency (GRC) has fallen to the WP. In addition, the PAP saw its vote share drop drastically, down almost 9% to 61.2% from 69.9% in GE2015.
Singapore’s electorate is unique in that a significant proportion is comprised of swing voters: Voters who don’t hold any blind allegiance to any political party, but vote based on a variety of factors both micro and macro. The above extreme scenarios were clearly targeted at these swing voters. Well, the swing voters have made their choice, their roar sending 4 more elected opposition MPs into Parliament. This article aims to unpack that roar and what it means for the state of Singaporean politics going forward.
1. The PAP is still the preferred party to form Singapore’s Government
Yes, this may come across as blindingly obvious, but it still needs to be said. The swing voter is by its very definition, liable to changes of opinion. And a large factor that determines how a swing voter votes is their perception of how their fellow swing voters are voting. If swing voters perceive that most swing voters are leaning towards voting for the opposition, they might feel compelled to vote for the incumbent. And if the reverse is true, swing voters might feel the need to shore up opposition support.
Why is this so? This is because the swing voter is trying to push the vote result into a sweet spot – one that lies between the two extreme scenarios espoused by either side. They don’t want the PAP to sweep all 93 seats in a ‘white tsunami’. Neither do they want the opposition to claim so much territory that the PAP is too weak to form the Government on its own. But because each swing voter only has a binary choice: either they vote for one side or the other (I’m ignoring the third option where they simply spoil their vote), they can’t very well say “I want to vote 0.6 for the PAP and 0.4 for the Opposition with my vote”. And so we can expect the swing voter bloc to continue being a source of uncertainty for both sides in future elections, as long as swing voters are still convinced that the PAP should be the Government.
2. Voters no longer believe that the PAP needs a ‘strong mandate’ to govern. They also don’t buy into the NCMP scheme.
Throughout the campaign period, the PAP repeatedly exhorted voters to vote for them alone. Granted, they couldn’t very well give any ground to the opposition without a fight. And therefore there was an attempt to equate voting for the PAP as voting for Singapore’s best interests. However, the main message that voters got was this: PAP will only be able to steer Singapore out of the Covid-19 pandemic if it has a strong mandate from the people.
What is a strong mandate, you may ask? While no PAP candidate publicly confirmed it, their incessant harping on the Non-Constituency Member of Parliament (NCMP) scheme as the PAP’s win-win solution for having the PAP in power and a largely de-fanged opposition presence in parliament shows that the PAP truly wanted a parliament where it held every single seat.
Clearly, the electorate has different ideas, handing Sengkang GRC to the WP and slashing the PAP’s margins in previous strongholds such as West Coast, Choa Chu Kang and Tanjong Pagar by double digit percentages. There is no doubt from the results that swing voters are convinced that a PAP supermajority is not good for Singapore. They are no longer convinced that to vote for the opposition is a vote against Singapore. They have realized, as members of a maturing democracy surely must, that one can vote for the opposition, yet still be pro-Singapore.
3. Social Media and the Internet are rewriting the electorate’s perception.
In the past, there was no way to have an easily accessible record of historical events. With the only information source available being biased mainstream media, Singaporeans could only rely on that to fill in the gaps in their memories. Therefore, Operation Coldstore became a myth of the past, and Chee Soon Juan became a crackpot in the eyes of the people, someone who should never be allowed into Parliament.
Fast forward to today. Chee won 45.2% of the votes in Bukit Batok’s Single Member Constituency (SMC). His party-mate, Dr. Paul Tambyah did even better, winning 46.26% of the votes in Bukit Panjang SMC. For someone previously seen as unfit for public office, this is an extremely good result.
Chee has been running for elections in Singapore for a long time, and only now is there a significant change in the way he is perceived (and supported) by the electorate. Why? Because of social media and the internet, two things which the PAP does not have absolute control over. With the ability to conduct interviews with social media personalities as well as upload party videos on Youtube, he has been able to display a side of himself to people that the PAP did not want them to see: someone who is merely human just like them, but who is standing up for what he believes in.
4. Reserved Election Shenanigans and Tan Cheng Block: The electorate has not forgotten.
Tan Cheng Bock almost became our President in 2011. There are many who say that if Tan Kin Lian and Tan Jee Say had not run, Tony Tan would not have been elected. In March 2016, Tan Cheng Bock publicly declared his interest to run for the next Presidential Election that would be held in 2017. The close result of 2011 and Tan Cheng Bock’s imminent candidacy made the upcoming Presidential Election one that was eagerly anticipated.
That is, until the PAP shut down his bid for the presidency just a few months later in September 2016, using its supermajority in Parliament to pass a “reserved election” in which only members of a particular race could take part. Under the new rules that they had drawn up for themselves, it was decreed that only Malays could take part. And not just any Malay. The candidate had to either be a senior executive managing a firm that had S$500 million in shareholders’ equity, or be the Speaker of Parliament or a similarly high post in the public sector (the exact criteria are a bit more in-depth than this, but this is the gist of it. You can find the full criteria here). And who was the Speaker of Parliament at the time? Mdm Halimah, who was conveniently of the right race (Although there was some hooha about her actually being Indian). With the extremely strict private sector criteria and the PAP being able to effectively control who the public sector candidate was, it came as no surprise that Mdm Halimah was declared the only eligible candidate on Nomination Day. A day later, she was Singapore’s President. And all without a single vote cast by any Singaporean.
Of course, the PAP denied that this was a move specifically aimed at blocking Tan Cheng Bock’s bid for the presidency. Chan Chun Sing, Singapore’s current Minister of Trade and Industry, stated in 2017 that the Government was prepared to pay the political price over making these changes to the Constitution.
We can clearly see from the GE2020 results that a price was indeed paid. A loss of almost 9% of vote share is very significant, although a combination of the first-past-the-post rule and the GRC system ensured that the PAP still won 89.2% of the seats in Parliament despite only garnering 61.2% of the votes. On the whole, it’s naught but a scratch to the PAP’s overwhelming dominance in Parliament. The PAP still retains its supermajority and can make changes to the Constitution anytime that it likes. But the swing voters have sent a clear signal that they have not been persuaded by the PAP’s rationale.
5. Swing Voters do not want Racial Politics.
In 2019, Heng Swee Keat, Singapore’s Deputy Prime Minister and the man who is next in line to be Prime Minister (PM) commented that Singapore was not ready to have a non-Chinese PM. He further added that race is an issue that always arises at election-time in Singapore.
Let us now consider the GE2015 results. Tharman Shanmugaratnam, Singapore’s Senior Minister and someone whom many have expressed keenness to be Singapore’s next PM, obtained 79.28% of the vote share in Jurong GRC. This was above even the current Prime Minister Lee Hsien Loong, who scored 78.63% in Ang Mo Kio GRC. Tharman’s score was the highest in the entire election.
And now let us consider the GE2020 results. Tharman scored 74.62% in Jurong, again the highest scorer of the entire election, while Hsien Loong scored 71.91%. So Tharman beat the current PM again, and by an even bigger margin than the last time. Furthermore, Swee Keat, who made the infamous comments above, scored just 53.41% in East Coast.
Yes, I know I’m ignoring a lot of other factors that influenced these results. But don’t these results show conclusively that Heng’s comments were wrong? We have an Indian leading both the current and future PM in both elections, but yet PAP still feels the need to say that Singapore “hasn’t arrived” at a stage where we can vote without race in mind. In fact, this was the same rationale that supposedly led to the reserved presidency as mentioned in my earlier point.
The swing voters have spoken, and it is exceedingly clear to me that the electorate does not care what our highest office-holders are in terms of race, whether it be the PM or the President. Our Singapore pledge firmly states “regardless of race”, and I think the results have shown that we as a people have taken it to heart. But has the PAP?
6. Voters will not be so easily manipulated.
On one hand, Singaporeans were exhorted to stay home during the Covid-19 pandemic. Contact tracing became mandatory, and groups of more than 5 are prohibited.
But on the other hand, we are also told that it’s absolutely necessary to hold an election during this same period, for Singaporeans to wait in long lines and in close proximity to each other as we congregate to cast our vote, all because the PAP needs a strong mandate.
On one hand, Heng Swee Keat lambasted the Worker’s Party, claiming that it was “playing games with voters” over their refusal to confirm if they would accept NCMP seats.
But on the other hand, Heng Swee Keat was moved to the East Coast GRC at the eleventh hour in a surprise move to secure the constituency. (As mentioned above, he was aptly rewarded for this with a razor-thin margin of just 53.41% of the votes.)
On one hand, Masagos Zulkifli, PAP Vice-Chairman stated that “candidates should not be defined by a single moment in time or in their career, but judged instead by their growth throughout their life”. He said this in defense of Ivan Lim, who appears to be the very first candidate in Singaporean politics to have been pushed into retracting his candidacy by the power of non-mainstream media.
But on the other hand, the PAP called on the WP to make clear its stand on Raeesah Khan, a WP candidate who ran (and won) in Sengkang GRC for this election, stating that the Police investigation into Raeesah’s comments made on social media was “a serious matter which goes to the fundamental principles on which our country has been built”.
On one hand, Chan Chun Sing stated in 2015, referring to SingFirst’s policies about giving allowances to the young and the elderly, “Some of them promised you $300 per month. I say, please don’t insult my residents. You think…. they are here to be bribed?”
On the other hand, the PAP Government has just given out several handouts under its many budgets to help Singaporeans cope with the Covid-19 situation. [To be clear, I totally approve of these handouts. What I don’t approve is that the PAP felt the need to lambast similar policies as bribery in the past. Comparing a policy with a crime is a political low blow in my book.]
I could go on, but I think I’ve made my point. And so did the electorate in this election, putting their vote where it counted to show their disdain for the heavy-handedness and double standards that the PAP has displayed for this election.
Conclusion
I don’t say the above to put down the PAP. The PAP would have you believe that to not support them is equivalent to not wanting what’s best for Singapore. This is a false dichotomy that must be stamped out, and I am glad to see our swing voters taking a real stand with this election.
No, I say the above as a harsh but ultimately supportive letter to the PAP. As everyone can see from the results, we all still firmly believe that the PAP should be the Government. We still have faith that PAP has the leadership to take us forward and out of the Covid-19 crisis.
But we also want to send the PAP a strong signal with this vote, to bring them down from their ivory towers and down to the ground. Enough with the double standards. Enough with the heavy-handedness. Singaporeans have clearly stated their desire for a more mature democracy, and that means more alternative voices in Parliament. The PAP needs to stop acting as the father who knows it all, and to start acting as the bigger brother who can work hand in hand with his alternative younger brother towards what’s best for the entire family: Singapore.
There is a real chance that the PAP will not listen, though. As Lee Hsien Loong admitted in a rally in 2006, “if there are 10, 20… opposition members in Parliament… I have to spent my time thinking what is the right way to fix them”.
Now, the PAP has POFMA at its disposal. It still has the supermajority in Parliament, making them able to change any law in Singapore, even the Constitution at will. We have already seen them put these tools to use for its own benefit. Let us see if the PAP will continue as it has always done, or will it take this opportunity to change itself for the better. Whatever the case, we will be watching, and we will be waiting to make our roar heard once again five years down the road.
Majulah Singapura!
Article Ends Here.
Here's the link to the actual article:
https://thethoughtexperiment.org/2020/07/11/ge2020-the-roar-of-the-swing-vote
And here's the link to the other political articles I've written about Singapore:
https://thethoughtexperiment.org/2020/07/07/ge2020-the-state-of-play/
https://thethoughtexperiment.org/2015/09/10/ge2015-voting-wisely/
https://thethoughtexperiment.org/2015/09/05/expectations-of-the-opposition/
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First Contact - Part Sixty-One (Kark)

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Captain's Personal Log - Stardate 8532.299
Arrived at Starbase-4973 with the Dakota and our crew. Turned over information to the local Starfleet representative as well as SUDS data for the other ship's crews. Spoke to Commodore Dunsten of Starfleet who requested a template for what changes the Dakota has undergone. Was counseled that my point totals will not count toward any ladder rankings due to 'extreme non-canon changes' to the Dakota as well as my crew personal armaments and shuttle modifications.
In shocking news, the Battlestar Fleet and the Cylon Collection have arrived. Talk about the big guns. Those guys carry the big Creation Engines that can pump out a Viper or Cylon fighters in roughly 10 seconds with only a 30 second cooldown/slushdown feature.
Met with the Space Force representative and turned over my battle logs. He, in particular, wanted the in-depth scans we performed on the various Precursor ships. Our practice of boarding the ships is, at this time, the most common strategy.
We discussed the fact that Space Force considers forcing the Precursor vessels out of the system to by a phyrric victory and that the system will require a heavy metal posting. Was also informed that the fact that the Precursor fleet retreated from the planets and then from the system was a 'statistical oddity' and he wanted more scans. He also inquired as to whether or not I ran an in-depth scan on the gas giants, which is where the Goliaths were spawning from. I regret I had not, merely a scan for a Goliath.
He appears quite concerned with the actions undertaken but did congratulate me on defending the system.
Transphasic Photon Torpedoes are considered standard armaments for all Starfleet vessels from here on out. There is talk of smaller planet-crackers being put in use among the crew, but planet crackers rely on the mantle to core interaction. Quantum torpedoes are nothing option that I am seriously considering. Phased plasma torpedoes are largely considered in the OP-Class of weaponry but I am seriously considering just loading everything up and going for broke. Tricobalt missiles might be another option but the last time anyone used that was during the Fifth Dominion War. The Dakota is so far out of specifications that mounting such weapons is not as far fetched as it may have sounded a month ago.
It isn't like anything we're going to do is going to count for the leaderboads.
On a personal note, some of the crew members have reported headaches from their SUDS interfaces. McCoy is working on it, but he also warned that the transporter may have to be reconfigured after the discovery that the Precursors can hijack the signal and capture crew members that way.
Starfleet transporters are much more carefully aligned than the earlier 'mat-trans' and 'teleporter' systems used by the 40K LARPers. Safety interlocks prevent our transporters from being used in many cases that a teleporter could be used, require more power, and have a triple-feedback redunancy check.
An amusing point: Teleporter systems seem to go straight through the shields. McCoy and Spock both believe that lengthened amount of time for buffer checking allows the Precursor shielding to be adjusted for the algorythm used by Starfleet vessels.
Another amusing point: During my LFG call, the Wesleys were lined up around the station core. Nobody is taking them on these, despite the class advantages because, outside of structured missions for Starfleet Games, nobody is going to suddenly have Wesley Weaknesses just because.
On a personal note: My Riker has grown out his beard and has been socializing with his Space Force peers in order to get us more information on this threat.'
--Picard 8873
Captain's Personal Log - Stardate 8532.304
One thing they don't mention in the sheer amount of time you spend moving from place to place. Warp drive is highly efficient and safe compared to stringdrive, slipstream, gates, and jumpspace. Unlike hyperspace, AI's are able to remain conscious in warp. Still, I feel the urge to yell "GO FASTER" at the warp nacelles.
My Spock took me to the side and warned me that Starfleet vessels may be making a serious mistake. Often, the Precursors take damage and flee the system, using Hellspace to jump out. He has noticed that after roughly 8% of their structure is damaged they then flee. He also had checked Starfleet records.
I'm the only vessel, at this time, running transphasic photon torpedoes.
He has suggested an experiment. Utilize transphasic torpedoes, phased plasma torpedoes, but leave one out of every barrage of 10, with the phased plasma torpedoes, with a subspace beacon. In that manner, we can discover where they are running off to.
My Spock has put forward the theory, and my Scotty and LaForge, as well as my Riker, all agree.
They have refitting, repair, and construction bases somewhere.
Perhaps our plan to put a phased subspace beacon aboard one of the larger vessels will pan out.
I do feel concern about what my crew and I might find in a Precursor shipyward.
--Picard 8873
Captain's Personal Log - Stardate 8532.306
We have returned to the system that myself and the others had cleared. In particular, we are running long range sensor scans of the gas giants. My Chekov has suggested, and I concur, that getting in close and running more detailed but shorter range scans might put us too close.
I would really like to avoid a barrage of nCv shells.
Our Uhura (She's extremely qualified and did not object to me doublechecking her bonafides) is keeping a careful ear out for any Precursor transmissions.
I have left orders that at the faintest whisper of Precursor code the Dakota is to move to red alert.
The system looks empty, but there is something that makes me think that there are only four lights.
--Picard 8873
ADDENDUM: There is apparently no structures or other masses in the gas giant at the depths our long range passive scanners can reach.
Captain's Personal Log - Stardate 8532.307
Our Uhura spotted it first. Subspace whispers. Complex and shifting binary, barely audible. While others suggested we move in, trying to get a lock in on what was whispering across subspace in such a manner I ordered the ship to immediately go to silent running, no emissions.
We observed a Goliath exit Hellspace near the larger gas giant, streaming vapor and metal, its attendant vessels exiting with it. As we watched it allowed the attendant vessels to board through the massive docking ports.
Sidenote: Some of those docking bays are the size of the real San Francisco Ultraplex.
The 'whispers' picked up and the massive Goliath sank into the gas giant.
My crew's estimation that the three initially engaged Goliaths of our last action had repaired themselves was confirmation bias.
For a bare moment the whisper got louder and the Goliath that had sunk into the gas giant was in plain view on our passive long range scanners then it simply vanished.
The belief of my Spock and Scotty is that the Precursors have some kind of shielded refit structure inside the gas giant beyond the scanner horizon. LaForge has stated that the pressures at such depth would make any construction or repairs inordinately difficult.
My Riker reminded LaForge that the Precursors were engaged in a war when they vanished and these bases are not only war-time bases, but that there are no living crews to worry about.
I ordered my crew to remain on silent running. There is enough debris on that planet to cover a probe approach. My LaForge has suggested putting a probe data relay in the Oort Cloud to give the signals a few 'bounces' and to use only phased tachyon streams with reversed polarity.
Sometimes I wish we didn't have all our own names for technology. Why could he have just said paired quark communications?
--Picard 8873
Captain's Personal Log - Stardate 8532.309
The probe was moved into place carefully, following a piece of debris from the previous battle. During this time our Uhura caught another scrap of what she has come to call "Precursor Whispers" from the other gas giant.
My Spock reminded me that the intense pressures inside a massive gas giant could make foundry work easier, allowing the creation of hyperalloys that we need massive foundries for to utilize the inherent pressures of a massive gas giant to create 'alloy farms' inside the gas giant.
A disturbing thought indeed.
Another ship type has arrived, which I have labeled the Enki class Precursor, has arrived and taken to carefully going over the debris fields of the Starfleet battle.
Thankfully the Klingon and Romulan officers routinely utilize anti-matter charges to clear any debris from the destruction of our ships.
It moved to the wreckage of the mining ship and has been spending time there. It is at extreme range and I am becoming nervous about what it is doing.
The Precursor attitudes within this star system are concerning.
Have you ever looked at an inanimate machine, with no living characterization like a Data possesses, and thought to yourself "What are you up to?" as you watched it?
I have that unique experience.
They are up to something.
--Picard 8873
Captain's Personal Log - Stardate 8532.310
The probe provided us with valuable information that is critical to disseminate.
We are now, to use my Riker's phrase: running like a bat out of hell.
Passive scans can only penetrate to a certain depth within a gas giant. Starfleet has been largely worried about planetary scans as well as deep space and intrasystem scans. Combine it with the fact we use a lot of gamification in our systems, gas giants were largely used as "spawn points" for crafts. This meant that, naturally, our scanners largely could not penetrate deeply into gas giants.
My Scotty and LaForge re-calibrated the sensor arrays to get a good look inside the gas giant.
My Spock was right. The Precursor was 'growing' large alloy fields down there. There was a repair and manufacturing base the size a continent down inside the gas giant with massive 'alloy farms' around it. Before the scale would have shocked me until my Spock pointed out that the Great Eye of Jupiter is twice the size of Terra itself. Nearly two dozen Precursor vessels were 'docked' at the facility.
Discussions on how to 'deal with' this massive repair and refit base were discussed at a closed meeting of my command crew. It ranged from using a Genesis Device on the gas giant (Not recommended. My LaForge stated that the Precursor ships we are facing here are more adept at 'learning' than previously encountered Precursor types and the last thing we should do is provide them with planet killers that create more resources) to attempting to use a modified planet cracker on the gas giant (Again, tabled due to concerns the Precursors would imitate it).
We settled on phasic trans-phasic photon torpedoes mixed with tricobat missiles.
Out attack was dual: Destroy the debris field of the Romulus class mining vessel, which was being thoroughly combed over by Enki class Precursor vessels, damage or perhaps even destroy the facility and the 'alloy farms' inside the gas giants.
We came in from above the stellar plane, at a high velocity angle. When facing Precursor vessels your speed and maneuverability are key to staying alive. We fired probes while still 25 million miles above the stellar plane. We came in with only debris shields at full power.
The probes reported back that while there were life signs on the planets in the Green and Amber zones the Precursor vessels around those planets and upon the surface were not engaged in wholesale slaughter or destruction. We practically turned the sensors inside out getting deep scans of everything.
Once in range (Starfleet weaponry is somewhat, to use my Riker's term: short legged compared to Space Force line weaponry) I ordered a full scan at maximum power and resolution. Normally this is avoided to prevent damage to sentient beings and xeno-species but the Precursors aren't a foe that one should concern themselves with scanner-burn.
Percursor vessels were not rising from the gas giants. While some immediately launched or moved to engage us from various points in the system, sheer distance and geometry prevented any attacks. At 30 million miles even nCv weapons or phaser beams move too slowly to engage a ship the size of the Dakota. We launched weapons and immediately began accelerating to be able to put enough distance between any Precursor vehicles and our own vessel.
We got our scan data back and immediately realized that engaging the Precursor vessels was now a secondary, if not tertiary, mission.
All four of the gas giants contained refit facilities of a size that is best described as 'geological'.
That was not the key data.
Our Uhura was able to isolate the 'Precursor Whisper' and while unable to decode it, was able to confirm what it is.
FTL data-streams.
Their battle, strategic, and tactical network.
The planets, while full of life and possessing several species known to be "Unified Civilized Races", were all at Stone Age technology. Precursor vessels were moving to protect the planets and their inhabitants for an unknown reason.
This information is vital to Starfleet, Space Force, and all other Confederacy organizations.
--Picard 8873
Captain's Personal Log - Stardate 8532.311
The Dakota has now had its very own AbramsKhan moment.
We were fired on in warp drive.
The Precursor vessel mounted one of the Galaxy class Starfleet vessel's engines and pursued us. With a lighter frame, higher energy output, and not having to concern itself with warp drive effects upon living beings, it was not only able to catch up to us, but fire upon us.
My Riker has stated that anyone who mocks up for having such thick armor after this will be starting a brawl.
We are alive only because of my insistence on heavy armor, structural integrity fields running the same type of shield frequency algorithms as our main deflector shields, with dual structural fields layered between armor and structural layers.
Immediately upon being fired upon we dropped out of warp drive to engage the small Precursor vessel. Chekov stated it would be between stellar bodies and it should have been a bare battlefield with not even gas wisps.
Instead, we dropped into a half dozen Jotun class vessels waiting for us.
We are currently undergoing evasive warp maneuvering as estimated by my Spock and my LaForge.
--Picard 8873
Captain's Personal Log - Stardate 8532.313
They're attempting to "drive" us deeper into the Dead Zone.
This gives us a fairly unusual opportunity. We can see what they are attempting to push us into or we can attempt to escape.
Spock and Scotty believe that it is imperative we discover what it is that the Precursors believe can take us out compared to the Jotuns following us.
Riker and LaForge maintain our goal should be reaching Federation/Confederate Space.
I believe I have a better idea.
--Picard 8873
Captain's Log - Stardate 8532.315
Rather than allow us to be pushed further into the Dead Zone I ordered the ship to move at a right angle to the galactic plane at full warp 9.3. While this can interfere with SUDS uploads and storage I have decided that the risk is necessary.
Captain's Log - Stardate 8532.317
The Precursor machines are still in close pursuit. They are arranging for attempted ambushes. LaForge has theorized that the one following us, which is a warp capable photon-torpedo launcher welded to the the Galaxy class engine and wrapped in neutronium armor, sends out a "whisper" as soon as it sees the 'warp flare' from our engines. That enables the Precursor vessels to Helljump to where we will be exiting.
Scotty has a plan.
Luckily, I did not dump my old class data, so I have a Kirk knowledge database.
Spock is overriding the interlocks to allow me to access that knowledge.
It is risky, but acceptable.
Captain's Log - Stardate 8532.317 - Supplmental
By utilizing the holodeck, a blank SUDS, and carefully aligned emitters, Spock believes I will be able to load the data from the Kirk character class into my memories despite being a Picard. He will attempt to use his Mind Meld ability to keep me from collapsing under a dual class.
The Precursor Pursuer will be in range inside of 30 minutes.
I have no choice.
Captain's Personal Log - Stardate 8532.317.7
The melding was somewhat successful. I have conflicting emotions and desires regarding many subjects but thankfully both my knowledge and personality templates are Starfleet officers. By use of the Mind Meld my Spock was able to use an older exploit involving class rank and player knowledge.
Contrary to popular opinion, Kirk classes are not womanizing hot-heads (Despite AbramsEra semi-canon) but rather highly innovative early Starfleet officers. It is just that the mission files force Kirk to use half-experimental technology in innovative ways in order to overcome unknown experiences and foes. One of the things often overlooked is Kirk made the rank of Admiral and was quite cautious in many ways.
Still, the dissonance between a Picard and a Kirk class is quite intense.
I am suffering nosebleeds. McCoy says it is from intercranial pressure as my brain attempts to sort through the information.
I have not informed him of the fact I have a severe SUDS hangover.
--Picark 8873
Captain's Log - Stardate 8532.318
After examining old scans of the Galaxy class ship that was defeated I was able to ascertain its hull number. Using that number, and knowledge possessed by an Admiral Level Kirk Class, when the Precursor Pursuer came close enough to fire I was able to drop its warp-shields. The Precursor Pursuer was exposed to raw warp energy at that time, inhibiting its ability to see the Dakota, specifically causing us to appear much further ahead in the warp conduit.
The Precursor Pursuer fell back and I ordered the Dakota to move to Emergency Warp Speed.
9.998 Okuda Scale
The Precursor Pursuer immediately went to maximum speed of the Galaxy class engine attached to little more than armor, bare shields, and a torpedo launcher.
Warp 10.
Without Transwarp shielding or any other technology, the Precursor Pursuer achieved infinite velocity and infinite mass.
The explosion damaged the Dakota and left us drifting in normal space.
Scotty and LaForce estimate repair times of 3 weeks.
--Picark 8873
Captain's Log - Stardate 8532.325
We are again underway after our successful destruction of the Precursor Pursuit vessel.
Maximum warp is limited to Warp 5.4.
Estimated time of arrival at Starbase 4973 is 11 days.
--Picark 8873
Captain's Personal Log - Stardate 8532.332
My SUDS has been scrambled and bad. I'm no longer Jeffery van Leedle, born on Rigel, but instead and curious combination of the character neural templates and my old personality.
Scotty, McCoy, and LaForge are examining me. Not in any hopes of untwining the personalities, but rather to forward the information to SoulNet in hopes that it can be prevented for occurring to others, no matter how unusual the circumstances.
The 'Gamed' memories no longer have the distinguishable overlay that Starfleet uses for safety measures. Instead, all of my memories feel the same.
Which is... confusing.
I remember racing a motorcycle in the wheat fields of Oklahoma, outside of Paris, under a Rigellian red sky.
My gestalt personality agrees that it is worth it for the information we have and to save my ship and my crew.
--Jeff Picark 8873
Captain's Log - Stardate 8532.334
Pro-term Acting Captain Riker-2173 commanding. Previous Captain suffering the effects of the SUDS/Template merger needed to access information to allow the destruction of the Precursor Pursuer.
Captain Jeff Picark was relieved of command, with acceptance and willingly, two hours ago.
Bridge and Command Officers are in agreement with this action.
We are two days out of Starbase 4973.
--Riker 2173
Captain's Personal Log - Stardate 8532.335
Would I have done it, knowing what I do now?
Yes.
My SUDS cannot update. The neural template recordings fragment and unravel.
I am no longer immortal.
But there is no such thing as only human. Humans, without the SUDS, accomplished incredible feats with just grit and determination.
However, I can no longer participate in active combat Starfleet games. Two hundred years of LARP down the tubes.
I made a good choice with my Riker. The hardest thing to do is relieve your Captain for cause.
He had good cause.
--Jeff Picark 8873
Captain's Log - Stardate 8532.336
I have docked the Dakota and am granting shore leave to crew. Captain Picark was taken to the Space Force infirmary via stretcher with McCoy in attendance.
Our mission is complete. Space Force has our data in their possession.
For some reason, the Precursors keep entire worlds of roughly half the xeno-sapients of the Unified Civilized Races.
Gas Giants must now be treated as Precursor base risks.
I am hoping "Jeff" recovers. The fact that he remembered an ancient piece of lore from OldTrekKhan is, honestly, impressive. Undergoing an in-mission partial respec was risky.
Will report to Starfleet and see what happens.
--Riker 2173
---------------------------
STARFLEET GAMING CENTRAL NOTICE
Jeffery van Leedle, player number 7c345a7e1-8873, is hereby promoted to Starfleet Admiral and is hereby recalled to Earth-42 to Starfleet Headquarters in New-SanFran.
In accordance to his wishes the Dakota a non-canon America class ship, is hereby given to Riker 56a817c38f2-2173, including all templates and player rewards.
-----NOTHING FOLLOWS-------
SPACE FORCE MEMO
ALL CAPTAINS
Initial estimations of 30-50 Goliath class total forces in is error.
New ship types encountered, new facilities discovered (See Attached File).
-----NOTHING FOLLOWS---------
CONFED MEMO
Mantid, any idea what this is about?
----NOTHING FOLLOWS-------
MANTID FREE WORLDS
Beyond "cattle worlds" we cannot estimate why Precursors, of all things, would have the older races, reduced to primitive, on worlds just being observed.
-----NOTHING FOLLOWS--------
BLACK CRUSADE
Experimentation, idiots. That Balor Hellship should have made you think of that.
They're trying to figure out a way to counter us.
------NOTHING FOLLOWS------
submitted by Ralts_Bloodthorne to HFY [link] [comments]

LCD Arduino project Display Heart Rate

LCD Arduino project brief introduction
Some time ago, I found a heart rate sensor module MAX30100 in shopping online. This module can collect blood oxygen and heart rate data of users, which is also simple and convenient to use.
According to the data, I found that there are libraries of MAX30100 in the Arduino library files. That is to say, if I use the communication between LCD Arduino and MAX30100, I can directly call the Arduino library files without having to rewrite the driver files. This is a good thing, so I bought the module of MAX30100.
I decided to use Arduino to verify the heart rate and blood oxygen collection function of MAX30100. With STONE TFT LCD screen for monitoring blood pressure.
Note: this module by default only with 3.3 V level MCU communications, because it defaults to using IIC pin pull up the resistance of 4.7 K to 1.8 V, so there is no communication with the Arduino by default, if you want to commune with the Arduino and need two 4.7 K of the IIC pin pull-up resistor connected to the VIN pin, these contents will be introduced in the back of the chapter.

Functional assignments

Before starting this project, I thought about some simple features:
• Heart rate data and blood oxygen data were collected
• Heart rate and blood oxygen data are displayed through an LCD screen
These are the only two features, but if we want to implement it, we need to do more thinking:
• What master MCU is used?
• What kind of LCD display?
As we mentioned earlier, we use Arduino for the MCU, but this is an LCD Arduino project, so we need to choose the appropriate LCD display module. I plan to use the LCD display screen with a serial port. I have a STONE STVI070WT-01 displayer here, but if Arduino needs to communicate with it, MAX3232 is needed to do the level conversion.
Then the basic electronic materials are determined as follows:
  1. Arduino Mini Pro development board
  2. MAX30100 heart rate and blood oxygen sensor module
  3. STONE STVI070WT-01 LCD serial port display module
  4. MAX3232 module

Hardware Introduction

MAX30100

The MAX30100 is an integrated pulse oximetry and heart rate monitor sensor solution. It combines two LEDs, a photodetector, optimized optics, and low-noise analog signal processing to detect pulse oximetry and heart-rate signals. The MAX30100 operates from 1.8V and 3.3V power supplies and can be powered down through software with negligible standby current, permitting the power supply to remain connected at all times.

Applications

● Wearable Devices
● Fitness Assistant Devices
● Medical Monitoring Devices

Benefits and Features

1、Complete Pulse Oximeter and Heart-Rate SensorSolution Simplifies Design
• Integrated LEDs, Photo Sensor, and high-Performance Analog Front -End
• Tiny 5.6mm x 2.8mm x 1.2mm 14-Pin OpticallyEnhanced System-in-Package
2、Ultra-Low-Power Operation Increases Battery Life for wearable Devices
• Programmable Sample Rate and LED Current for Power Savings
• Ultra-Low Shutdown Current (0.7µA, typ)
3、Advanced Functionality Improves Measurement Performance
• High SNR Provides Robust Motion Artifact Resilience
• Integrated Ambient Light Cancellation
• High Sample Rate Capability
• Fast Data Output Capability

Detection Principle


https://preview.redd.it/254ou0pq20a51.jpg?width=817&format=pjpg&auto=webp&s=2d3287e1973b328412e14c6e56f74e6f5975153e
Just press your finger against the sensor to estimate pulse oxygen saturation (SpO2) and pulse (equivalent to heartbeat).
The pulse oximeter (oximeter) is a mini-spectrometer that USES the principles of different red cell absorption spectra to analyze the oxygen saturation of the blood. This real-time and rapid measurement method is also widely used in many clinical references.
I will not introduce the MAX30100 too much, because these materials are available on the Internet. Interested friends can look up the information of this heart rate test module on the Internet, and have a deeper understanding of its detection principle.

Introduction to the STVI070WT-01 displayer

In this project, I will use the STONE STVI070WT-01 to display the heart rate and blood oxygen data.
The driver chip has been integrated inside the display screen, and there is software for users to use. Users only need to add buttons, text boxes, and other logic through the designed UI pictures, and then generate configuration files and download them into the display screen to run.
The display of STVI070WT-01 communicates with MCU through the UART RS232 signal, which means that we need to add a MAX3232 chip to convert the RS232 signal into a TTL signal so that we can communicate with Arduino MCU.

https://preview.redd.it/kyyv3hou20a51.jpg?width=749&format=pjpg&auto=webp&s=512b7285eb763e518a85d0b172dabc08b15cab6a
If you are not sure how to use the MAX3232, please refer to the following pictures:

https://preview.redd.it/5laiqsxw20a51.jpg?width=653&format=pjpg&auto=webp&s=126fb57d5171d942046277896e1552995df0ce13
If you think the level conversion is too troublesome, you can choose other types of displayers of STONE Tech, some of which can directly output uart-TTL signal.
The official website has detailed information and introduction:
https://www.stoneitech.com/
If you need video tutorials and tutorials to use, you can also find it on the official website.

https://preview.redd.it/0rkfwxk530a51.jpg?width=867&format=pjpg&auto=webp&s=32803906927fff48bb8fbc1b0a7c073cfe54c5e5

Development steps

Three steps of STONE display screen development:
• Design the display logic and button logic with STONE TOOL software, and download the design file to the display module.
• MCU communicates with the STONE LCD display module through the serial port.
• With the data obtained in step 2, the MCU does other actions.

STONE TOOL software installation

Download the latest version of the STONE TOOL software (currently TOOL2019) from the website, and install it.
After the software is installed, the following interface will be opened:

https://preview.redd.it/evuct2w630a51.jpg?width=848&format=pjpg&auto=webp&s=201d40fdb81e2c4fd229992daf15501f2cb177a0
Click the "File" button in the upper left corner to create a new project, which we will discuss later.

LCD Arduino

Arduino is an open-source electronic prototype platform that is easy to use and easy to use. It includes the hardware part (various development boards that conform to the Arduino specification) and the software part (Arduino IDE and related development kits).
The hardware part (or development board) consists of a microcontroller (MCU), Flash memory (Flash), and a set of universal input/output interfaces (GPIO), which you can think of as a microcomputer motherboard.
The software part is mainly composed of Arduino IDE on PC, related board-level support package (BSP) and rich third-party function library. With the Arduino IDE, you can easily download the BSP associated with your development board and the libraries you need to write your programs.
Arduino is an open-source platform. So far, there have been many models and many derived controllers, including Arduino Uno, Arduino Nano, Arduino Yun and so on. In addition, the Arduino IDE now not only supports the Arduino series development boards but also adds support for popular development boards such as Intel Galileo and NodeMCU by introducing BSP.
Arduino senses the environment through a variety of sensors, controlling lights, motors and other devices to feedback and influence the environment. The microcontroller on the board can be programmed with an Arduino programming language, compiled into binaries, and burned into the microcontroller. Programming for Arduino is implemented with the Arduino programming language (based on Wiring) and the Arduino development environment (based on Processing). Arduino-based projects can contain Arduino only, as well as Arduino and other software running on PC, and they communicate with each other (such as Flash, Processing, MaxMSP).

HMI for Arduino serial display TFT LCD project development environment

The Arduino development environment is the Arduino IDE, which can be downloaded from the Internet.
Log into the official website of Arduino and download the software
https://www.arduino.cc/en/Main/Software?setlang=cn
After installing the Arduino IDE, the following interface will appear when you open the software:

https://preview.redd.it/2ajmkke830a51.jpg?width=567&format=pjpg&auto=webp&s=56dc9dd01c98b231c782ef94d24a9f620c4897b3
The Arduino IDE creates two functions by default: the setup function and the loop function.
There are many Arduino introductions on the Internet. If you don't understand something, you can go to the Internet to find it.

LCD Arduino Project implementation process

hardware connection

To ensure that the next step in writing code goes smoothly, we must first determine the reliability of the hardware connection.
Only four pieces of hardware were used in this project:
  1. Arduino Mini pro-development board
  2. STONE STVI070WT-01 TFT-LCD display screen
  3. MAX30100 heart rate and blood oxygen sensor
  4. MAX3232 (rs232-> TTL)
The Arduino Mini Pro development board and STVI070WT-01 TFT-LCD display screen are connected through UART, which requires level conversion through MAX3232, and then the Arduino Mini Pro development board and MAX30100 module are connected through IIC interface. After thinking clearly, we can draw the following wiring picture:

https://preview.redd.it/w2e5c9ha30a51.jpg?width=769&format=pjpg&auto=webp&s=95129db838d6c358e986c88a4d1348f4783cd0ab
https://preview.redd.it/eom4wiia30a51.jpg?width=1091&format=pjpg&auto=webp&s=ff56c3afaf063d7785a5b85ba283532be0dd896e
Make sure there are no errors in the hardware connection and proceed to the next step.

STONE TFT LCD user interface design

First of all, we need to design a UI display image, which can be designed by PhotoShop or other image design tools. After designing the UI display image, save the image in JPG format.
Open the software STONE TOOL 2019 and create a new project:

https://preview.redd.it/sqjii2mc30a51.jpg?width=1004&format=pjpg&auto=webp&s=12f0a87d6c2ca8decaff241d5a0b50a3a1aece89
https://preview.redd.it/4ta8cdlc30a51.jpg?width=871&format=pjpg&auto=webp&s=b31ac5e612a2c809e29f63974a04ba25bff83788
Remove the image that was loaded by default in the new project, and add the UI image that we designed.
Add the text display component, design the display digit and decimal point, get the storage location of the text display component in the displayer.
The effect is as follows:

https://preview.redd.it/2mfqapoe30a51.jpg?width=1335&format=pjpg&auto=webp&s=aacfa0fde88defacd127ea9d9d27ab006ab618dd
Text display component address:
• Connection sta : 0x0008
• Heart rate : 0x0001
• Blood oxygen : 0x0005
The main contents of the UI interface are as follows:
• Connection status
• Heart rate display
• Blood oxygen showed

Generate configuration file

Once the UI design is complete, the configuration file can be generated and downloaded to the STVI070WT-01 displaye.

First, perform step 1, then insert the USB flash drive into the computer, and the disk symbol will be displayed. Then click "Download to u-disk" to Download the configuration file to the USB flash drive, and then insert the USB flash drive into STVI070WT-01 to complete the upgrade.

MAX30100

MAX30100 communicates via IIC. Its working principle is that the ADC value of heart rate can be obtained through infrared led irradiation. The MAX30100 register can be divided into five categories: state register, FIFO, control register, temperature register, and ID register. The temperature register reads the temperature value of the chip to correct the deviation caused by the temperature. The ID register can read the chip's ID number.

https://preview.redd.it/221fq8vg30a51.jpg?width=848&format=pjpg&auto=webp&s=43e93284ac35cf1944a77d79ff9a2f662e540c7e

MAX30100 is connected with the Arduino Mini Pro development board through the IIC communication interface. Because there are ready-made MAX30100 library files in the Arduino IDE, we can read the heart rate and blood oxygen data without studying the registers of MAX30100.
For those who are interested in exploring the MAX30100 register, see the MAX30100 Datasheet.

Modify the MAX30100 IIC pull-up resistor

It should be noted that the 4.7k pull-up resistance of the IIC pin of MAX30100 module is connected to 1.8v, which is not a problem in theory. However, the communication logic level of the Arduino IIC pin is 5V, so it cannot communicate with Arduino without changing the hardware of the MAX30100 module.Direct communication is possible if the MCU is STM32 or another 3.3v logic level MCU.
Therefore, the following changes need to be made:

https://preview.redd.it/jti57usl30a51.jpg?width=521&format=pjpg&auto=webp&s=c56b1b1a8294d60a8f9e931e411305f68c5c5559
Remove the three 4.7k resistors marked in the picture with an electric soldering iron. Then weld two resistors of 4.7k at the pins of SDA and SCL to VIN, so that we can communicate with Arduino.

Arduino serial display LCD

Open the Arduino IDE and find the following buttons:

https://preview.redd.it/990d3bdp30a51.jpg?width=853&format=pjpg&auto=webp&s=24136c385601b69d5afc67842358b102373277ef
Search for "MAX30100" to find two libraries for MAX30100, then click download and install.

https://preview.redd.it/4n167pbv30a51.jpg?width=933&format=pjpg&auto=webp&s=cef50833667bae3f30ac94f5a48b43795b779845
After the installation, you can find the Demo of MAX30100 in the LIB library folder of LCD Arduino:

https://preview.redd.it/rn05xgvw30a51.jpg?width=911&format=pjpg&auto=webp&s=3709bc7c5be36ebdd14c01cb0b7c1933953425b0
Double-click the file to open it.

https://preview.redd.it/q6fqylky30a51.jpg?width=819&format=pjpg&auto=webp&s=8073917be374a72bef2977b4b11ccb2b56fa944e
This Demo can be directly tested. If the hardware connection is ok, you can download the code compilation into the Arduino development board and see the data of MAX30100 in the serial debugging tool.
The complete code is as follows: /*
Arduino-MAX30100 oximetry / heart rate integrated sensor library
Copyright (C) 2016 OXullo Intersecans
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see .
*/
#include
#include "MAX30100_PulseOximeter.h"
#define REPORTING_PERIOD_MS 1000
// PulseOximeter is the higher level interface to the sensor
// it offers:
// * beat detection reporting
// * heart rate calculation
// * SpO2 (oxidation level) calculation
PulseOximeter pox;
uint32_t tsLastReport = 0;
// Callback (registered below) fired when a pulse is detected
void onBeatDetected()
{
Serial.println("Beat!");
}
void setup()
{
Serial.begin(115200);
Serial.print("Initializing pulse oximeter..");
// Initialize the PulseOximeter instance
// Failures are generally due to an improper I2C wiring, missing power supply
// or wrong target chip
if (!pox.begin()) {
Serial.println("FAILED");
for(;;);
} else {
Serial.println("SUCCESS");
}
// The default current for the IR LED is 50mA and it could be changed
// by uncommenting the following line. Check MAX30100_Registers.h for all the
// available options.
// pox.setIRLedCurrent(MAX30100_LED_CURR_7_6MA);
// Register a callback for the beat detection
pox.setOnBeatDetectedCallback(onBeatDetected);
}
void loop()
{
// Make sure to call update as fast as possible
pox.update();
// Asynchronously dump heart rate and oxidation levels to the serial
// For both, a value of 0 means "invalid"
if (millis() - tsLastReport > REPORTING_PERIOD_MS) {
Serial.print("Heart rate:");
Serial.print(pox.getHeartRate());
Serial.print("bpm / SpO2:");
Serial.print(pox.getSpO2());
Serial.println("%");
tsLastReport = millis();
}
}
📷
This code is very simple, I believe you can understand it at a glance. I have to say that the modular programming of Arduino is very convenient, and I don't even need to understand how the driver code of Uart and IIC is implemented.
Of course, the above code is an official Demo, and I still need to make some changes to display the data to STONE's displayer.

Display data to the STONE display through Arduino LCD

First, we need to get the address of the component that displays the heart rate and blood oxygen data in STONE's displayer:
In my project, the address is as follows:
Heart rate display component address: 0x0001
Address of blood oxygen display module: 0x0005
Sensor connection status address: 0x0008
If you need to change the display content in the corresponding space, you can change the display content by sending data to the corresponding address of the display screen through the serial port of Arduino.
The modified code is as follows:
/*
Arduino-MAX30100 oximetry / heart rate integrated sensor library
Copyright (C) 2016 OXullo Intersecans
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see .
*/
#include
#include "MAX30100_PulseOximeter.h"
#define REPORTING_PERIOD_MS 1000
#define Heart_dis_addr 0x01
#define Sop2_dis_addr 0x05
#define connect_sta_addr 0x08
unsigned char heart_rate_send[8]= {0xA5, 0x5A, 0x05, 0x82,\
0x00, Heart_dis_addr, 0x00, 0x00};
unsigned char Sop2_send[8]= {0xA5, 0x5A, 0x05, 0x82, 0x00, \
Sop2_dis_addr, 0x00, 0x00};
unsigned char connect_sta_send[8]={0xA5, 0x5A, 0x05, 0x82, 0x00, \
connect_sta_addr,0x00, 0x00};
// PulseOximeter is the higher level interface to the sensor
// it offers:
// * beat detection reporting
// * heart rate calculation
// * SpO2 (oxidation level) calculation
PulseOximeter pox;
uint32_t tsLastReport = 0;
// Callback (registered below) fired when a pulse is detected
void onBeatDetected()
{
// Serial.println("Beat!");
}
void setup()
{
Serial.begin(115200);
// Serial.print("Initializing pulse oximeter..");
// Initialize the PulseOximeter instance
// Failures are generally due to an improper I2C wiring, missing power supply
// or wrong target chip
if (!pox.begin()) {
// Serial.println("FAILED");
// connect_sta_send[7]=0x00;
// Serial.write(connect_sta_send,8);
for(;;);
} else {
connect_sta_send[7]=0x01;
Serial.write(connect_sta_send,8);
// Serial.println("SUCCESS");
}
// The default current for the IR LED is 50mA and it could be changed
// by uncommenting the following line. Check MAX30100_Registers.h for all the
// available options.
pox.setIRLedCurrent(MAX30100_LED_CURR_7_6MA);
// Register a callback for the beat detection
pox.setOnBeatDetectedCallback(onBeatDetected);
}
void loop()
{
// Make sure to call update as fast as possible
pox.update();
// Asynchronously dump heart rate and oxidation levels to the serial
// For both, a value of 0 means "invalid"
if (millis() - tsLastReport > REPORTING_PERIOD_MS) {
// Serial.print("Heart rate:");
// Serial.print(pox.getHeartRate());
// Serial.print("bpm / SpO2:");
// Serial.print(pox.getSpO2());
// Serial.println("%");
heart_rate_send[7]=(uint32_t)pox.getHeartRate();
Serial.write(heart_rate_send,8);
Sop2_send[7]=pox.getSpO2();
Serial.write(Sop2_send,8);
tsLastReport = millis();
}
}
Compile the code, download it to the Arduino serial display LCD development board, and you're ready to start testing.
We can see that when the fingers leave the MAX30100, the heart rate and blood oxygen display 0. Place your finger on the MAX30100 collector to see your heart rate and blood oxygen levels in real-time.

LCD Arduino project effect can be seen in the following picture:


https://preview.redd.it/k9u0jtg040a51.jpg?width=510&format=pjpg&auto=webp&s=1e9994109a072807a802eb1179b874f727aeff5a
https://preview.redd.it/0ow2lfg040a51.jpg?width=576&format=pjpg&auto=webp&s=b0f5f6ac073894c8b0c033549fce79fac1c90bc3
submitted by Tamesliu to arduino [link] [comments]

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Comprehensive Guide for getting into Home Recording

I'm going to borrow from a few sources and do my best to make this cohesive, but this question comes up a lot. I thought we had a comprehensive guide, but it doesn't appear so. In the absence of this, I feel that a lot of you could use a simple place to go for some basics on recording. There are a couple of great resources online already on some drumming forums, but I don't think they will be around forever.
Some background on myself - I have been drumming a long time. During that time, home recording has gone from using a cassette deck to having a full blown studio at your finger tips. The technology in the last 15 years has gotten so good it really is incredible. When I was trying to decide what I wanted to do with my life, I decided to go to school for audio engineering in a world-class studio. During this time I had access to the studio and was able to assist with engineering on several projects. This was awesome, and I came out with a working knowledge of SIGNAL CHAIN, how audio works in the digital realm, how microphones work, studio design, etc. Can I answer your questions? Yes.

First up: Signal Chain! This is the basic building block of recording. Ever seen a "I have this plugged in but am getting no sound!" thread? Yeah, signal chain.

A "Signal Chain" is the path your audio follows, from sound source, to the recording device, and back out of your monitors (speakers to you normies).
A typical complete signal chain might go something like this:
1] instrument/sound source 2] Microphone/TransducePickup 3] Cable 4] Mic Preamp/DI Box 5] Analog-to-Digital Converter 6] Digital transmission medium[digital data get recoded for usb or FW transfer] 7] Digital recording Device 8] DSP and Digital summing/playback engine 9] Digital-to-Analog Converter 10] Analog output stage[line outputs and output gain/volume control] 11] Monitors/Playback device[headphones/other transducers]
Important Terms, Definitions, and explanations (this will be where the "core" information is):
1] AD Conversion: the process by which the electrical signal is "converted" to a stream of digital code[binary, 1 and 0]. This is accomplished, basically, by taking digital pictures of the audio...and this is known as the "sampling rate/frequency" The number of "pictures" determines the frequency. So the CD standard of 44.1k is 44,100 "pictures" per second of digital code that represents the electrical "wave" of audio. It should be noted that in order to reproduce a frequency accuratly, the sampling rate must be TWICE that of the desired frequency (See: Nyquist-Shannon Theorem). So, a 44.1 digital audio device can, in fact, only record frequencies as high as 22.05khz, and in the real world, the actual upper frequency limit is lower, because the AD device employs a LOW-PASS filter to protect the circuitry from distortion and digital errors called "ALIASING." Confused yet? Don't worry, there's more... We haven't even talked about Bit depth! There are 2 settings for recording digitally: Sample Rate and Bit Depth. Sample rate, as stated above, determines the frequencies captured, however bit depth is used to get a better picture of the sample. Higher bit depth = more accurate sound wave representation. More on this here. Generally speaking, I record at 92KHz/24 bit depth. This makes huge files, but gets really accurate audio. Why does it make huge files? Well, if you are sampling 92,000 times per second, you are taking each sample and applying 24 bits to that, multiply it out and you get 92,000*24 = 2,208,000 bits per second or roughly 0.26MB per second for ONE TRACK. If that track is 5 minutes long, that is a file that is 78.96MB in size. Now lets say you used 8 inputs on an interface, that is, in total, 631.7MB of data. Wow, that escalates quick, right? There is something else to note as well here: Your CPU has to calculate this. So the amount of calculations it needs to perform for this same scenario is ~17.7 million calculations PER SECOND. This is why CPU speed and RAM is super important when recording digitally.
2] DA conversion: the process by which the digital code (the computer representation of a sound wave) is transformed back into electrcal energy in the proper shape. In a oversimplified explanation, the code is measured and the output of the convertor reflects the value of the code by changing voltage. Think of a sound wave on a grid: Frequency would represent the X axis (the horizontal axis)... but there is a vertical axis too. This is called AMPLITUDE or how much energy the wave is generating. People refer to this as how 'loud' a sound is, but that's not entirely correct. You can have a high amplitude wave that is played at a quiet volume. It's important to distinguish the two. How loud a sound is can be controlled by the volume on a speaker or transducer. But that has no impact on how much amplitude the sound wave has in the digital space or "in the wire" on its way to the transducer. So don't get hung up on how "loud" a waveform is, it is how much amplitude it has when talking about it "in the box" or before it gets to the speakeheadphone/whatever.
3] Cables: An often overlooked expense and tool, cables can in fact, make or break your recording. The multitudes of types of cable are determined by the connector, the gauge(thickness), shielding, type of conductor, etc... Just some bullet points on cables:
- Always get the highest quality cabling you can afford. Low quality cables often employ shielding that doesnt efectively protect against AC hums(60 cycle hum), RF interference (causing your cable to act as a gigantic AM/CB radio antenna), or grounding noise introduced by other components in your system. - The way cables are coiled and treated can determine their lifespan and effectiveness. A kinked cable can mean a broken shield, again, causing noise problems. - The standard in the USA for wiring an XLR(standard microphone) cable is: PIN 1= Cold/-, PIN 2= Hot/+, PIN 3=Ground/shield. Pin 3 carries phantom power, so it is important that the shield of your cables be intact and in good condition if you want to use your mic cables without any problems. - Cables for LINE LEVEL and HI-Z(instrument level) gear are not the same! - Line Level Gear, weather professional or consumer, should generally be used with balanced cables (on a 1/4" connector, it will have 3 sections and is commonly known as TRS -or- TipRingSleeve). A balanced 1/4" is essentially the same as a microphone cable, and in fact, most Professional gear with balanced line inputs and outputs will have XLR connectors instead of 1/4" connectors. - Hi-Z cable for instruments (guitars, basses, keyboards, or anything with a pickup) is UNBALANCED, and should be so. The introduction of a balanced cable can cause electricity to be sent backwards into a guitar and shock the guitar player. You may want this to happen, but your gear doesn't. There is some danger here as well, especially on stage, where the voltage CAN BE LETHAL. When running a guitabass/keyboard "Direct" into your interface, soundcard, or recording device, you should ALWAYS use a "DIRECT BOX", which uses a transformer to isolate and balance the the signal or you can use any input on the interface designated as a "Instrument" or "Hi-Z" input. It also changes some electrical properties, resulting in a LINE LEVEL output (it amplifies it from instrument level to line level).
4] Digital Data Transmissions: This includes S/PDIF, AES/EBU, ADAT, MADI. I'm gonna give a brief overview of this stuff, since its unlikely that alot of you will ever really have to think about it: - SDPIF= Sony Phillips Digital Interface Format. using RCA or TOSLINK connectors, this is a digital protocol that carries 3 streams of information. Digital audio Left, Digital Audio Right, and CLOCK. SPDIF generally supports 48khz/20bit information, though some modern devices can support up to 24bits, and up to 88.2khz. SPDIF is the consumer format of AES/EBU - AES/EBU= Audio Engineering Society/European Breadcasters Union Digital protocol uses a special type of cable often terminated with XLR connectors to transmit 2 channels of Digital Audio. AES/EBU is found mostly on expensive professional digital gear. - ADAT= the Alesis Digital Audio Tape was introduced in 1991, and was the first casette based system capable of recording 8 channels of digital audio onto a single cartridge(a SUPER-VHS tape, same one used by high quality VCR's). Enough of the history, its not so important because we are talking about ADAT-LIGHTPIPE Protocol, which is a digital transmission protocol that uses fiberoptic cable and devices to send up to 8 channels of digital audio simultaneously and in sync. ADAT-Lightpipe supports up to 48khz sample rates. This is how people expand the number of inputs by chaining interfaces. - MADI is something you will almost never encounter. It is a protocol that allows up to 64 channels of digital audio to be transmitted over a single cable that is terminated by BNC connectors. Im just telling you it exists so in case you ever encounter a digital snake that doesnt use Gigabit Ethernet, you will know whats going on.
digital transmission specs: SPDIF -> clock->2Ch->RCA cable(consumer) ADAT-Lightpipe->clock->8Ch->Toslink(semi-pro) SPDIF-OPTICAL->clock->2Ch->Toslink(consumer) AES/EBU->clock->2Ch->XLR(Pro) TDIF->clock->8Ch->DSub(Semi-Pro) ______________ MADI->no clock->64Ch->BNC{rare except in large scale pofessional apps} SDIF-II->no clock->24Ch->DSub{rare!} AES/EBU-13->no clock->24Ch->DSub
5] MICROPHONES: There are many types of microphones, and several names for each type. The type of microphone doesn't equate to the polar pattern of the microphone. There are a few common polar patterns in microphones, but there are also several more that are less common. These are the main types- Omni-Directional, Figure 8 (bi-directional), Cardioid, Super Cardioid, Hyper Cardioid, Shotgun. Some light reading.... Now for the types of microphones: - Dynamic Microphones utilize polarized magnets to convert acoustical energy into electrical energy. there are 2 types of dynamic microphones: 1) Moving Coil microphones are the most common type of microphone made. They are also durable, and capable of handling VERY HIGH SPL (sound pressure levels). 2) Ribbon microphones are rare except in professional recording studios. Ribbon microphones are also incredibly fragile. NEVER EVER USE PHANTOM POWER WITH A RIBBON MICROPHONE, IT WILL DIE (unless it specifically requires it, but I've only ever seen this on one Ribbon microphone ever). Sometimes it might even smoke or shoot out a few sparks; applying phantom power to a Ribbon Microphone will literally cause the ribbon, which is normally made from Aluminum, to MELT. Also, windblasts and plosives can rip the ribbon, so these microphones are not suitible for things like horns, woodwinds, vocals, kick drums, or anything that "pushes air." There have been some advances in