askelectronics

It happens rarely, but I will notice either my phone or the charger getting pretty toasty randomly. What could be causing this?

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

I work on equipment that runs off 3 phase 208V but it uses uses a transformer to drop it down to 120V for most of the controls. On this equipment I noticed that there are two fuses on the lines exclusively feeding the 208V side of the transformer and a fuse directly off of the hot side on the 120V side of the transformer....

Working on a joystick. Seems like any protocol I use to read from peripherals is going to be bottlenecked by having just one input. My microcontroller might have multiple ADCs, but there’s just one processor stepping through them. Same for spi, or i2c, or uart. There’s really only ever one sensor reporting back its data at a...

I’ve recently bought a used computer, and it has a few problems. I’m looking for a guide to help me identify which parts are causing the problem....

Hello altogether, I guess everybody has some USB-C cables lying around, but wonder if it’s 3A, 5A, 3.0, TB… Anybody able to recomment a device able to determine that? Maybe also something that can be combined with a load tester.

I got these TP4056 modules from an AliExpress vendor and fail to understand how the protection circuit works or if it’s just typical Ali shovelware. It could be my limited understanding of electronics....

I recently came to the realization that I’ve been kinda punishing myself with cheap no-name solder that is really difficult to work with....

Since MOSFETs have a gate capacitance you’d want to limit the inrush of current from the output of a microcontroller to prevent it from getting damaged prematurely. That’s what gate resistors are usually good for....

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. 😊

I’m an EE by trade focusing on embedded devices, but most of my work is in relatively low-power STM32 applications. When I stopped following developments in hobby kits, it was mostly Arduino Unos slowly driving I2C OLED displays....

Hi everyone!...

Trying to repair a Hyperkin Duke Xbox controller where the left trigger doesn’t respond. Found that the resistance of this potentiometer doesn’t change when it’s moved, so I’m looking to replace it. I’m a novice with this stuff though and I’m having trouble identifying it. Any help is appreciated.

So, there are these great 32700 LiFePO4 batteries that showed up in my local industrial market. For like USD 2$!...

cross-posted from: lemmy.world/post/9052986...

I had an old USB Oscilloscope (StingRay), it's 20+ years old now....

I want to replace one half of this with longer wire, but I am not confident about the name of the connector used....

I’m planning to make a modular synth from scratch, but I need to start with the PSU. Do you see any issues with this schematic?...

Hey folks, I have a Mackie 802-VLZ4 mixer which does this narsty pop when you turn it on; I’m pretty sure it’s what killed one of the woofers in my monitors. It has been put out of service and I will either harvest its many through-hole organs or else fix it....

Direct Macro unveils a steadfast technological ally, resolute in delivering avant-garde and dependable solutions tailored to address the panorama of your varied requirements. A steadfast commitment to quality and performance underscores our expansive array of state-of-the-art offerings 400-aemm Internal Hard drive to elevate...

I’m learning about electronic components. I believe this is the part which has broken and made this heating pad unsafe to use. Well, unusable, not just unsafe lol.

Hi, I'm new here (never used this entire platform before, but as the askElectronics reddit is down I thought i'd follow the trail to lemmy and see what's what). Hopefully this works!...

To all the electronic nerds out there: I am trying to trigger a 555 timer by movement in a random direction that also occurs randomly and any change in position should trigger the 555. AFAIK tilt switches are not useable here. Does this idea make sense?...