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“A Practical 4-Bit Educational Computer A re-implementation & extension of a classic 4-bit education system from 1981 - the Busch 2090 Microtronic Computer System. This Next Generation Microtronic offers SDcard-based file storage, extended programming and debugging facilities utilizing its large LCD, a …
“Speed up the etching of printed circuit boards with an easy to build agitator. I make a lot of my own printed circuit boards and etching was always a bit of a chore since you really need to keep the …
“The idea of making a VU meter has been on my project list for a long time. And finally I can make it now. The VU meter is a circuit for an indicator of the audio signal strength. The VU …
“Cute snowflake-shaped ornament with programmable LED sequence. Black solder mask and HASL finish complement this relatively small snowflake-shaped PCB. Powered by CR1220 3V battery in combination with ATtiny13 for easy LED sequencing. ISP pads are available to re-program the 6 …
“Industrial and electronics instrumentation is a very expensive field and it’s not easy to learn about it if we are just self-educated or a hobbyist. Because of that my Electronics instrumentation class and I designed this low budget 4 …
“This project is a nice way of displaying the time and weather in a small convenient package. I will explain the project, how it works and show the code here. You can press different buttons to show the current weather …
“The project presented here is a versatile high voltage Half-Bridge with current feedback. The board is built using L6390 IC from ST Semiconductor. It is suitable for DC-DC converters, EHT drivers, induction heater drivers, battery chargers, LED drivers, DC …
“Micro Gear Motor based small robot powered by a Wemos D32 Pro and controlled by Blynk app. So this is my microbot V1 which is an ESP32 based robot which is powered by a Wemos d32 pro and controlled by …
“Here comes a simple Graphic Equalizer showing 14 audio bands from 60Hz up to 16kHz. It consist of a PCB based on MSGEQ7 and ESP dev board. Since a MSGEQ7 chip recognizes 7 bands only and an ESP dev board …
“Controlling your computer by using hotkeys and macros is a great way of speeding up your workflow. Unfortunately a device dedicated to doing that (for example Elgato’s Stream Deck) will cost you about $120. That is why I designed …