askelectronics

Hi, I found an old cellphone battery (from a Pixel3A phone) and I’d like to reuse it for my robotics experiments. (link to images: imgur.com/a/Oj09tai)...

I bought a PWM Dimmer based on a 555 from AliExpress to regulate the brightness of a 12V 1A 1 meter LED strip, I already built one myself years ago on a perfboard but this one was the exact dimensions I needed for a project. I built mine from components from AliExpress and components found in old electronics so I thought nothing...

I’m looking for a version of this connector (2x2, 2.54mm):...

I bought a random cheap crystal oscillator off AliX. It was advertised as a “constant temperature crystal reference”....

I’ve got an old oscilloscope and a function generator that I’m trying to use to play around and get more familiar with this kinda stuff. I’m mostly new to electronics (especially analog ones) and I’m having a hard time getting them setup properly....

Hi, I've been unable to ID the pictured capacitor to track down a spec sheet or source. Do any of you folks recognize it? Pictured are two different capacitors that look to be identical except for slightly different markings....

I've been watching a couple of YouTube videos doing component-level repair. I've noticed some of them have super fine multimeter probes, often with insulation covering most of the length of the probe. I haven't found ones like this on my usual sites, but I'm not sure if I'm just missing something. Can anyone suggest some meter...

cross-posted from: sh.itjust.works/post/13637559...

Just exploring about this tp-link XN020-G3v router. I’m mostly interested in connecting to the UART, won’t be tinkering with electronics of it, but out of curiosity I tried to search what these chips are. and I couldn’t find much about the big chip. Can anyone describe the 4 main chips on it ? Best would be datasheet, but...

hi again, since i had a bad idea in my last post i wanted to try again to get some feedback i could understand and apply....

The purpose of this PCB is to be small, have ok RF performance, and use USB as main power-source and interface. (Off course it has UART if USB is not available) this is just a somewhat challenge I set myself to design a esp32 PCB with the IC without a already made module....

So I’m a refrigeration tech with some electronics manufacturing experience. But I’ve never combined the 2 skillsets so I’ve been toying with the idea of building a large vapor chamber to cool a computer via direct immersion in a refrigerant. I know its about as far from practical as you can get but it sounds like fun....

I’m getting a little bit frustrated with my AliExpress 2.54mm dupont ribbon cables. The female housings get loose after just a few cycles, and the connections start falling apart easily....

Hi all...

Salutations to Davide A. for this creation as an alternate.

I have a few old posts on the subreddit and i need to view one of them as i am reviving an old project. there is a comment on one of them that has the info i need. I never screenshotted that info....

This Lemmy community is an alternative to the Reddit /r/AskElectronics

It’s an SPST-NO micro switch. Don’t waste time searching for it. I already wasted mine. Just let me know what it is if you know it off the top of your head. 😊

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I migrated here in the US (specifically in San Bernardino, CA). Quick Intro: I’m a graduate electrical engineer; honestly, I really don’t have that much experience and not even a decent internship experience due to covid, resulting in an online OJT. Do you think doing an internship here in the US is the way to go? If yes,...

So I’m doing some testing of USB-C cables using a tester and a constant load (I’ll have another post soon with some questions on this). But before running each test, I’m checking the E-mark chip and then enumerating the charge capabilities of each to see what they report being capable of....

I am making a graphics card on the tang nano 20k board. I tried synthesising the design in the official IDE and it output:...

Thanks for all your votes and comments. From the icons that were submitted as requested, the results were as follows:...

I am looking for a Toggle switch that will allow me to actuate an actuator manually, or otherwise set the actuator to an ‘automatic’ mode, logic for which which I am coding on an arduino. The switch I want should have momentary On’s for manual trimming that will spring back to an Off position, or it can be left in another...