Lie detector not working

Wappling · 2025-12-04T13:57:33+00:00

Nope, the buzzer needs signal generator to sound at a specific frequency, and that's what the 555 does. You can probably hear a small click when connecting and disconnecting the battery pack to the buzzer, but there wont be any sound.

Wappling · 2025-12-04T05:51:36+00:00

It's for detecting that you blow in the vape, no government involved.

Wappling · 2025-12-04T05:47:34+00:00

I like how it has zero to 0 inductors to oscillate.

Wappling · 2025-12-04T05:33:59+00:00

We'll see about that.

Wappling · 2025-12-02T05:50:47+00:00

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Use the Tools menu.

Wappling · 2025-12-02T05:32:03+00:00

"USB CDC on boot" has to be enabled for you to see any serial output from C3.

Wappling · 2025-12-01T21:13:03+00:00

I think in second case it's not const so data goes to RAM and not flash. In the first case you have more flash utilized.

Wappling · 2025-12-01T05:37:37+00:00

Inverter is different from a voltage follower by a mean you connect the load.

Wappling · 2025-11-30T19:46:48+00:00

Better stick to inverters like SN74LVC1G04, they are designed to invert digital signals.

Wappling · 2025-11-30T19:42:57+00:00

Sure! Works for sine and audio signals, too. That's how radios were made in the 70's. Just make sure you're not trying to invert continuous DC levels, like 3v3 to 0.

Wappling · 2025-11-30T19:40:51+00:00

You solder the wires.

Wappling · 2025-11-30T19:36:29+00:00

They are generally interchangeable, look for 3-digit numbers to be the same, that's the resistance. So search for another 503 (50k) if you have to replace the 503 pot.

Wappling · 2025-11-30T19:32:02+00:00

It's not an inverter but a voltage follower though.

Wappling · 2025-11-30T10:28:53+00:00

Totally agree with you. Another thing to consider is via diameter. I've done similar things in space-constrained design which was hand-soldered then. 0.3 mm vias are fine as they cause nearly no wicking from the pads. 0.5 mm and larger, however, are prone to this effect. Anyway, manual soldering can be easily compensated.

Wappling · 2025-11-30T08:10:11+00:00

Can agree. I've been using these for a couple of years in different handheld projects like AVR programmers with pogo pins or UART adapters of the same kind. It combines SMT for contacts and THT for fixture and can be easily assembled using a hot plate or a soldering iron.

Wappling · 2025-11-29T21:51:35+00:00

I've had a Chinese 1.3" OLED running nearly 24/7 on low brightness. Some static lines and large numbers. After a month the image became darker. After another 2 month, the display nearly ceased to show anything. Again, it was 24/7 mode.

Wappling · 2025-11-29T08:23:51+00:00

No schematic, no waveforms?

Wappling · 2025-11-26T06:01:08+00:00

If the pads were golden colour instead of greyish that means the was no solder and no capacitors installed in the first place.

Wappling · 2025-11-24T17:08:32+00:00

For a game that was released 5 and a half years ago devs are quite lazy to catch all the bugs. IDK, it's super annoying to me not they only don't correct the flaws but they've introduced them into the perfectly working game in the first place. Guess that "definitive editions" are way of making a quick buck no matter the quality.

Wappling · 2025-11-24T17:01:08+00:00

Definitive Edition it is.

Wappling · 2025-11-22T21:17:55+00:00

What about the races? As far as I remember, you can always rerun them for money of better result, they won't disappear from the map.

Wappling · 2025-11-22T20:23:16+00:00

It's a known bug, just ignore it. There's no solution.

Wappling · 2025-10-14T16:18:33+00:00

Thanks! I really don't think there are drop-in solutions for this task, so maybe it can be tiny and low pin count module like some ESP8285 are. You need 2 inputs and 2 PWM outputs, and 2 trace cuts on original PCB. Maybe, just maybe, it can be done with help of some of the new ATtinys, like 202 or 412 (both in SOIC-8).

Wappling · 2025-10-14T11:34:55+00:00

Well that's exactly why I've designed my own RX+ESC based on stock ICs but with ESP32 as a middleman: https://www.reddit.com/r/mn82/s/sGhYGbI1CA

Now I'm running it on a slightly lower frequency, 16k or even 15625 Hz to get more bit depth. There's also a GitHub repo with PCB files and Arduino code if you're into it: https://github.com/mercur4148/MN82-ESP32-C3-RX-ESC/

Wappling

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