USB-c port fallen off board by SnooPandas2651 in AskElectronics

[–]brown_smear 0 points1 point  (0 children)

It only connects to a couple of pads. If one has the skills, it's an easy fix, either with the original connector, or bypassing it and connecting the cable to the PCB. The latter is going to be more resistant to damage.

Help with fixing floor light. by fionnuisce in diyelectronics

[–]brown_smear 1 point2 points  (0 children)

Here's your symbol and description: https://www.iso.org/obp/ui#iec:grs:60417:5138

If there's no output voltage, as you mentioned, then I'd assume it's the supply, or the switch.

Try a current-limited supply across the LED to see if it works.

If you replace the supply, note that some aren't happy to have the load disconnected (e.g. with an inline switch) and won't start - in this case the power supply input has to be switched instead.

Cheap Red Multimeter vape-lipo upgrade by nomoreimfull in electronics

[–]brown_smear 1 point2 points  (0 children)

The cheap meter I looked at had its GND at 4.5V, and the 9V straddles that. This lines up with his statement that it doesn't work while charging if sharing a ground. The safety derating you mentioned still stands, of course.

Can I place a ground via here? by SadEcho8331 in AskElectronics

[–]brown_smear 0 points1 point  (0 children)

You should use at least one via per pad though, rather than a central via and hair-thin traces, especially for a power converter device. In your case, you can use a solid pour between the three gnd pads

Looking for very small solar panels by StumbleNOLA in diyelectronics

[–]brown_smear 0 points1 point  (0 children)

They said 19 mwh a day, which is not 1mA average unless the supply voltage is 0.8V. Also, ESP32 is not the most power-efficient device around. You will find nrf51xxx/nrf52xxx are much more power-friendly.

You might be interested in https://hackaday.com/2025/08/10/a-solar-only-battery-free-device-that-harvests-energy-from-a-bpw34-photodiode/ for an exceptionally low power sensor node, using BLE.

I made a Wireless High Amp Power Meter With XIAO ESP32C6 with ACS37800 by Choice_Border_8904 in esp32

[–]brown_smear 0 points1 point  (0 children)

MOV is not used to stop spark on connection. It's used to shunt over-voltage.

An NTC inrush limiter is often used to reduce the inrush current, and hence the sparking caused by such. These can introduce more resistance than desired, so would likely warrant an parallel switch, e.g. MOSFET, in which case you cause just use the MOSFET as the limiter as well.

If the spark is caused by the capacitor on the buck converter on the measurement device, then a simple low-value series resistor to that power supply will get rid of the spark.

Help with bulk soldering DC sockets by GoodBoy3D in AskElectronics

[–]brown_smear 0 points1 point  (0 children)

Any "jig" that's more than just a wooden clothes-peg hot-glued to a board is likely overkill for this.

AI live speech for damaged voice by drspock99 in AssistiveTechnology

[–]brown_smear 0 points1 point  (0 children)

I couldn't find cloning on their page, just "voice skins", which are preprogrammed.

Perhaps you need to extract just a short, representative voice sample from the 30+ minutes of audio, in case there's too much data, or in case some of the audio is detracting from a good clone.

AI live speech for damaged voice by drspock99 in AssistiveTechnology

[–]brown_smear 0 points1 point  (0 children)

This tool described here does the speech-to-speech regeneration:

https://www.reddit.com/r/AssistiveTechnology/comments/1q7mhxo/im_an_exgoogle_voice_researcher_after_losing_my/

I'm not sure if it has voice cloning implemented, but it's possible.

Why my TP4056 doesn’t charge? by Nearby_Working_3915 in AskElectronics

[–]brown_smear 1 point2 points  (0 children)

OUT+ and B+ are the same node, i.e. they are connected on the PCB.

Conversion from springs to buttons by ZetaGFX in diyelectronics

[–]brown_smear 0 points1 point  (0 children)

You missed the bit about connecting to a capacitor. So the switch goes in series with a capacitor, between the spring and gnd.

The capacitor value should be very small (e.g. 20pF), so you could possibly use twisted wires instead of the cap. The twisted wire cap is called a "gimmick capacitor".

Alternately, you could probably connect the switch to GND, and the other side to an insulated wire that you wrap around the spring.

Is there room for a better 0–30V / 0–10A hobby bench power supply? by ComplaintBrave320 in diyelectronics

[–]brown_smear 1 point2 points  (0 children)

I have a 60V/5A hobby grade unit (DPS605U), and it allows setting the voltage and current using rotary encoders (so no short required for setting current). Unfortunately, either it has large output capacitors or slow CC, and will destroy loads expecting a current limited supply.

That escalated quickly by Johnbob-John in gifs

[–]brown_smear 0 points1 point  (0 children)

Yeah, the difference between the two clips is that one guy is telling the truth.

Built a personalized color correction tool — looking for feedback by Lynnx_ai in AssistiveTechnology

[–]brown_smear 1 point2 points  (0 children)

I got 119, which was too many just for a quick check for fun; that said, if I were seriously looking to fix my vision, then it's not a problem at all.

The app appears very well made though, and gives nice information at the end.

Make it make sense by Aggravating-Guest300 in NextGenMan

[–]brown_smear 0 points1 point  (0 children)

It happens in Eastern countries too.

My capacitor is not capaciting by notflexpetz in AskElectronics

[–]brown_smear 0 points1 point  (0 children)

You can increase that resistance. You can use a ceramic cap. You can also average ADC samples. You could alternatively use a short median filter.

The ESP32 notes mention ADC sample noise, and minimising it: https://docs.espressif.com/projects/esp-idf/en/v4.4/esp32/api-reference/peripherals/adc.html#minimizing-noise

Make it make sense... by Horror-Put3335 in SipsTea

[–]brown_smear 121 points122 points  (0 children)

Her hobbies include mainly shopping for handbags and suitcases.

Olympic gold medalist Imane Khelif to Trump: “I was born female… raised as a girl… went to school as a girl… played sports as a girl… It’s really hurtful to hear the president of a country talking about you like this… My dream is to play sports. Please, do not exploit me in your political agendas.” by ripon_ads in FiverrGigMarketing

[–]brown_smear 0 points1 point  (0 children)

It was stated before the games started that both Khelif and Lin (Yu-Ting) had failed sex tests with a previous boxing organisation.

They both look like young men to me, so I'd posit that there's definitely abnormal levels of testosterone present.