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Latest
Testing 18650 "cells"
I've rescued a metric buttload of Samsung INR21700-50E (5000mAh 9.8A 3.6V)…
Two-Ring Walnut Pendant Light with Hidden Music Visualizer
The trickiest part of any round pendant like this is getting truly clean…
3D printed plant lamp runs a synced light show
Most builds I see in this hobby put a strip inside a printed shell and let…
Synth filter built around a century-old galena cat's whisker
Most filter builds reach for a bag of matched silicon or germanium diodes and…
Omori virtual pet handheld on an ESP32-S3
The starting idea is a lovely one: bringing the world of Omori into a…
Fifth-year pixel display with mega tree, arches and full-house sync
A lot of neighborhood displays stop at a few strings along the eaves. Ethan…
Camera Board Maps A Knotted LED String Automatically
The most surprising part of this build is that a tangled bundle of fifty…
Sophomore year recruiting grind - is it actually worth the burnout?
EE sophomore here with a 3.77 and I've spent basically the whole fall semester…
Frequently Asked Questions All FAQs »
rec's for NiMH battery tester/charger?
I've got a big chunk of AA, AAA, and some C NiMh cells of varying ages... I'd…
atiny13 to atiny25
I'm in the process of shfiting a board using Atmel's atiny13 to the atiny25.…
wart overvoltage protection
We make a gadget that's powered by a 12 volt wart, and sometimes a user…
Raspberry Pi Sound card problem electret condenser microphones
I want to process the signals of five electret condenser microphones with…
Radio Reception - Massive Electrical Interference
Hi! I just moved to an apartment and wanted to keep my radio in the bathroom…
Driving LEDs with constant voltage
I have some 7-segment displays I'd like to drive from a uP output...the…
Controlling alot of LEDs from Arduino or AVR. Maybe 74HC595
I am trying to create a project much like like a Marquee sign, I want to be…
Solved Issues All Solved »
Problem with wiringPi (2025 Update)
Hi I set out with the intention of connecting and communicating with small…
Soldering gun tip - Weller DIY tipreplacement
I have a Weller soldering gun & the tip burned through. Not having a spare, I…
~ OT? Dust in a computer
Any good solutions to keep the dust out? Anyone doing anything along those…
Repair of Samsung 55" TV - backlight problem
Friends of mine have a Samsung 55" 4K TV, model UN55HU6840 (about 2014). They…