@trouble I was asked what kind of battery. It's this one!

ebay.com/itm/186641137947

It's kind of a rare model but it is out there!

You'll need/want to take off the battery's included regulator circuit board; the MonkeyLight canister has its own. But that's easy, it's easy de-soldering.

#BikeNite #MonkeyLights #MonkeyElectric #DIY #repair #electronics

3.7V 1500mAh 5.55Wh Polymer Li Battery 102550 Lipo Repair Tablet PC LED Mp4 GPS | eBay

Model code :PL 102550. Nominal Capacity :3.7v 1500mAh 5.55Wh. we confirm that we will provide high quanlity li battery to you. we can provide CE and test report for all our li batteries. Cell Size ：10 mm(thick) × 25mm(width) × 50mm(length).

^eBay

Hey hey, you thought there be no #nakeddiefriday today? Here we go!

Today's entry is an Infineon/Siemens SAB-C167CR-LM, a microcontroller based on the C166 core. The die is in pleasant-looking pastel colours. 😀 The die has pin 1 in top left corner. I'll do a short thread.

Many thanks to @debauer for supplying the samples!

SiPron page with more info and full-res map: siliconpr0n.org/archive/doku.p…

#electronics #silicon #reverseengineering #microscopy

Last boost: that tiny chip is *incredible*. The amount of stuff it can do is pretty amazing.

#embedded #electronics #tinymcu

Aren't there extension cables for these solar panel connectors? I only find "MC4" cables, which seem to be only the connector on the receiving end but not the panell side. I need an extension for the panel side though. as 2 of the 4 panels are further away.

Do those extension cables even exist, or isn't this meant to be due to some frequency issues? Should I instead get another one of those cables with 4 connectors put them in a row if possible? (Seems to be possible?)
#solar #electronics

I'm not entirely surprised—I’ve noticed that old digital watches tend to run faster over time. I have a few vintage models from the '70s and '80s that have noticeably picked up speed with age. I always assumed this was due to the natural aging of quartz crystal oscillators, but perhaps there’s more to it than that. Could there be another factor at play?

#gaming #electronics #retrocomputing #retrogaming

ign.com/articles/speedrunners-…?

Speedrunners Left Scratching Their Heads After New Discovery Suggests the SNES Works Faster as It Ages - IGN

The speedrunning community is trying to wrap its head around a technological phenomenon that is seemingly causing the SNES to run games faster as it ages.

^{Michael Cripe (IGN)}

Oh right, I didn't show you how one of our #UniFi #Ubiquiti AP's "PoE" (not real one, hence the quotes) injector literally burnt… I had to hack in a barrel jack to use a regular 24V brick.

#electronics #repair

My old smart home hack for my blind remote on the left (servos!) versus my new version (direct tapping the pcb). The new one is smaller and responds much faster but I miss watching the “fingers” stab the buttons when we adjusted the blinds! On the plus side, the remote now runs directly off the 3.3v line on the @seeedstudio Xiao C3 instead of its own battery! Just need to design and print a lid now!

#smarthome #homeassistant #esphome #esp32 #electronics

I started a new video series about component basics. Today I'm going to take a look at capacitors, their identifiers and different types. Have fun!
Youtube: youtube.com/watch?v=BT1iXreWvV…
Peertube: makertube.net/w/vQWeCK9y6s8i4m…
#synthdiy #analog #synth #capacitor #electronics

polykit

2025-03-13 22:48:26

Synth DIY component basics: capacitors

I started a new videos series about basic components used for synthesizer DIY or electronics in general. Today I'm going to take a closer look at capacitor types, identifiers and packages. Have fun!

Build your own synth - Eurorack kits and PCBs: store.polykit.rocks

Support me on Patreon and make more videos possible: patreon.com/Polykit

////

Website: polykit.rocks
Mastodon: chaos.social/@polykit
Store: store.polykit.rocks

////

#synth
#analog
#synthdiy
#capacitor

POLYKIT - DIY EURORACK MODULES & SYNTHESIZER PARTS

polykit diy eurorack kit modules modular build your own synth synthdiy buy components parts bausätze bausatz cases case berlin synthesizer module vcf vco shop

^{store.polykit.rocks}

Anyone need some split core current transformers?

Up until about five years ago, I worked for an energy metering company. They did a warehouse cleanup and got rid of tons of material, including hundreds of CTs for AC current measurement. I snagged all of those (and used some for my own home metering) but I still have probably 200 floating around.

I've got split cores rated for 50A up to 6000A or so, and physical sizes from about 1/2" ID to 8" ID (the larger ones are flexible rope style). Mostly rated for 0-333mV AC output but there may be some oddballs in there (like 0-500mV, maybe a couple 4-20mA).

I need to clear up some space, so I was thinking $20 plus shipping per CT, maybe with a bulk discount if you get five or more? Some of these retail for $100+ so if I have something you need it could be a good deal! Most of these are lightly used in a testing environment.

#fedisale #electronics #monitoring #electrical #SmartMeter #parts #electricity

gerotakke.de/ottopot/

I've updated the ottopot website and build instructions with the PCB version and the new case.
I'm considering this the v1 release 🙌

The ottopot is a MIDI controller with 8 endless potentiometers sending 14bit CCs.

Special thanks to @Nervengift for the PCB contribution.

#musodon #electronics #3dprinting #ottopot

Untitled by Hajime Hirano (#Japan)

A meticulously composed image of a street vendor selling electronic parts in #Akihabara, Tokyo.

Electronic candy shop.

@photography
#electronics
#shops

Finally watched some tutorials and got myself off the ground with Nomad Sculpt! Which is funny, since my first project is a flightless kiwi. :3

Working on this lil guy as a potential enclosure for a #RaspberryPi running #Kiwix ✨

// #3DPrinting #Electronics #NomadSculpt #CAD

Changed from Uno to Nano, different breadboard, different pair of earbuds, external power supply, tidied up the mess of wires, still nothing, still the same symptom.

I am now convinced that the Si4703 is fried . I should pay better attention next time

#Electronics #Arduino #Fail

I was trying out a Si4703 radio module with Arduino Uno. Somehow I skipped over part of the tutorial that said that you are not supposed to just plug the Si4073 to 5V microcontroller. I only figured this out because my circuit didn't work.

So I redid the breadboard, this time with bidirectional level shifters. Still didn't work. Maybe the Si4703 is fried now. Good thing it was cheap

It is 2 in the morning now, I'll just retry this later. Time to sleep

#Electronics #Arduino

(Tagging electronics folks, feel free to respond or not as willing/able.)

I'm doing initial research to design a custom battery mgmt/charge/balance circuit for a prototype. 4S/5S LiPo (nonprotected), 90Wh, 12A discharge. It needs to run the device while charging, like a laptop.

Any advice or resources on circuits/architecture/ICs, key safety req's? I'm a professional circuit designer but not experienced w/Li batteries.

Thanks!

@cmb @gsuberland @chris_gammell

#circuitDesign #electronics

So today is not going entirely to plan.
The set of additional #solarpanels I connected up refuse to give us juice. I tried to trace the fault and got jack shit info because my cheap ass 19 year old #multimeter is (confirmed by many tests now) not working any more. Its fuse is fine too, as is its #battery. It just displays zeros.
So add to the list of unexpected expenses and delays one new multimeter...

#mutualaid is our lifeline to #selfsufficiency so we can help others. Can you help us out with our expenses for...?

Multimeter: $7-8 at Harbor Freight
Crimp connectors: $?
Tyres: ~$1200 (Vulpibus)
Refilling fuel: ~$100
Refilling my overdraft: ~$500
Refilling my other overdraft: ~$250

#moneyhelp #trans #escapingfascism #homeless #transrescue #buslife #skoolie #LGBTQIA2S #lgbt #lgbtq #motorhome #stabilization #financialaid #financialaidrequest #debtstruggle #electrical #electronics #testing #technology #tools #hackerspace #hackerspaceonwheels #labonwheels #roadadventures #DIY #queer #fediGive #fedihelp

Semiconductor marketing be like: How do you write a blurb to sell the cheapest possible 8-bit microcontroller at the bottom of your product line? #electronics

"High performance RISC CPU, only 33 single-byte instructions to learn!"

it literally asks for being laughed at.

#chatgpt and #electronics

Intro 4/10
After my Minecraft Torch paper circuit project, I wanted to invent a circuit that is playful, yet easy to make. The result was this RGB Cube that is controlled by a touch-sensitive paper surface. If you use velostat, a pressure-sensitive variable resistor, you can easily mix any color by varying the amount of pressure. More: voltpaperscissors.com/rgb-touc…

#papercircuit #electronics #papercraft #STEM #MINT #maker #DIY

Oops. I thought I'd clean the heads of the disk drives on the Tandy TRS-80 before trying them with the machine. The head on the top side fell off.

It seems it was just glued on, so I applied some fresh glue and stuck it on again. The good news: this was not the boot drive. The bad news: it doesn't seem to be working. Maybe I messed up the head alignment? Guess I need to hook up the oscilloscope and check the signal coming from the head.

At least the boot drive is working, and for the first time in my life I booted up a TRS-80 from disk.

Interesting mods as well, to select between 40 and 80 track operation.

Oh, and it turned out the heads weren't that dirty to begin with, probably didn't need a clean anyway.

#RetroComputing #Tandy #TandyTRS80 #TRS80 #Electronics #ElectronicsRepair

silly one day design, I2S DAC for a Rock 5B for fancy audio output.

building an audio player for my dad and he wants something "audiophile" so i put an LDO with <1µV rms noise on it lol

the TAD5212 is still missing a footprint but otherwise it's mostly done. but instead of layouting this i'll do something productive instead 😁

#electronics