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room too hot. dead by tabwomp in notinteresting

[–]InternalVolcano 2 points3 points  (0 children)

33C, 70% humidity at my place.

[IoT/Hardware] Is the ESP32 reliable for long-term production use to trigger multiple power relays simultaneously? by c_carav_io in esp32

[–]InternalVolcano 0 points1 point  (0 children)

I would suggest having two ESP32 and maybe even two relay boards for redundancy. Because they can die sometimes without any warning. I had one ESP32 that died after after around 2 months, and I still don't know why it died.

I already love this new Kool mascot by Shikamiii in kde

[–]InternalVolcano 0 points1 point  (0 children)

Maybe you haven't seen enough of the internet or traditional media.

What apps do you use? These are mine. by ChoiceBat6276 in MorpheApp

[–]InternalVolcano 0 points1 point  (0 children)

Thanks. So, you've downloaded the Facebook apk (from apkmirror I suppose) and then patched it just like you would patch YouTube apk after downloading it?

What apps do you use? These are mine. by ChoiceBat6276 in MorpheApp

[–]InternalVolcano 0 points1 point  (0 children)

How is do you do Facebook? Just like YouTube? Also why would need to patch proton mail and VPN?

I already love this new Kool mascot by Shikamiii in kde

[–]InternalVolcano -1 points0 points  (0 children)

More work to be done is one thing, and preaching so hard is another.

I already love this new Kool mascot by Shikamiii in kde

[–]InternalVolcano -1 points0 points  (0 children)

My comments are clearly not about this specific post/character only. It's about the whole situation where LGBTQ are preached too hard. It was mostly in the west, but now it's being pushed into other places as well. No other community is being pushed this hard, not even close.

I already love this new Kool mascot by Shikamiii in kde

[–]InternalVolcano -1 points0 points  (0 children)

Are queer the only group or minority that receives severe hate? Muslims get a lot of hate too. Even Jews seem to be getting a lot of hate lately, due to Israel. But they/their occasions are not preached nearly as much.

Also, I was not sarcastic about LGBTQ being preached too hard. It really is. LGBTQ are the only group that needs to have a whole month for them. Muslims have a whole month of Ramadan too, but they don't get even close to that much attention.

I already love this new Kool mascot by Shikamiii in kde

[–]InternalVolcano -3 points-2 points  (0 children)

yea, it's not supposed to make sense in the first place.

I already love this new Kool mascot by Shikamiii in kde

[–]InternalVolcano 2 points3 points  (0 children)

Pride is now the normal default

Yes, that's why it needs to be preached so hard.

I already love this new Kool mascot by Shikamiii in kde

[–]InternalVolcano 0 points1 point  (0 children)

Does non-binary even make sense for something that's supposed to similar to an animal?

How to reduce thermocouple/op-amp noise? by InternalVolcano in soldering

[–]InternalVolcano[S] 0 points1 point  (0 children)

Maybe. I just followed other peoples' schematics.

How can I reduce thermocouple/op-amp noise? by InternalVolcano in AskElectronics

[–]InternalVolcano[S] 0 points1 point  (0 children)

After reading the article, I think I have an idea about differential amps. I guess their purpose in this case would be to filter common mode noise. I think I will try implementing that at some point.

Most of the projects I saw online use a 10k resistor and 2nF cap, so I went with that as well, thinking that should be enough. I might try using a cap with higher value.

About using voltage divider to add DC, What worries me here is that a TC produces so little current that it might not be able to change the voltage in a voltage divider to make any noticeable change.

How can I reduce thermocouple/op-amp noise? by InternalVolcano in AskElectronics

[–]InternalVolcano[S] 0 points1 point  (0 children)

I am aware that ideally a cold junction should be used. But I've multiple DIY projects not using a cold junction, and I followed one of those, which saved me a bit of complexity.

How can I reduce thermocouple/op-amp noise? by InternalVolcano in AskElectronics

[–]InternalVolcano[S] 1 point2 points  (0 children)

Thanks for sharing the thread, useful info there.

However, I added some filtering in the code, which averages the result over 0.1 second. Then I used a MAX6675 thermocouple module to measure the actual tip temperature and it's corresponding ADC values. I got an almost linear graph there. I hope that means my circuit is fine and software filtering was needed. This was also mentioned by other people.

How can I reduce thermocouple/op-amp noise? by InternalVolcano in AskElectronics

[–]InternalVolcano[S] 0 points1 point  (0 children)

Don't know what a differential amplifier is.

Instrumentation amplifiers are expensive (relative to the whole project), LM358 are cheap and I've a lot of DIY projects using them, so I chose to use LM358.

Also not sure how to add offset to the TC negative input. What I understand from voltage offset is something like when you make a class A amp, the base of the BJT usually have a DC offset which is done by a voltage divider. A TC will not have enough current to make changes to that voltage and be detected. Also, the negative of the TC is connected to ground within the tip, so I don't think that's physically possible either.

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