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A MIDI Sound and Interface Card for the TRS-80 Model 1, III, and 4
Project Owner Contributor

MIDI-80 for the TRS-80

michael-wesselMichael Wessel

A retrosystem based on the elegant 8/16 bit 6809 processor capable of running UniFLEX and OS9 level II multiuser/multitasking OS
Project Owner Contributor

6809 Eurocard CPU System

roelof4roelof4

DIY 12V LiFePO4 UPS for Home Assistant Green and Xfinity XB7 modem. Victron BP-65 LVD, MOSFET ideal diode, 13.3V float, Shelly Plus Uni
Project Owner Contributor

DIY UPS for Home Assistant Green & Xfinity XB7 Mod

bill-collisBill Collis

A device to split an addressable LED signal where one output skips a configurable amount of pixels.
Project Owner Contributor

Addressable LED Delay Splitter

maikMaik

An Indoor Thermometer That Uses MAGIC MORSE CODE To Communicate The Temperature Between Three Bands: 50F - 79F
Project Owner Contributor

Cold Hearted Orb (PICAXE->ARDUINO)

ray-burneRay Burne

A compact water chiller/heater that can function as a drop-in alternative to cooling mattresses like 8Sleep + other purposes (lab).
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Opencooler

patPat

Screen that follows you around and reacts to hand gestures
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Tracking Screen

quackieduckieQuackieduckie

custom(izable) circuit for sending some megabytes over differential pairs.
Project Owner Contributor

miniMAC - Not an Ethernet Transceiver

yann-guidon-ygdesYann Guidon / YGDES

Modular, lightweight Hardware-in-the-Loop (HIL) testing framework for embedded systems with report generating features.
Project Owner Contributor

Py-Micro-HIL

niwciuniwciu

Mini-PI Media Server for use on home network or as a wifi access point to stream media from
Project Owner Contributor

Mini-PI Media Server

diddydiddy

If you’ve ever left your workshop wondering “Did I really turn everything off?”, this project is for you.
Project Owner Contributor

Workbench Power Manager

jeroen-brinkmanJeroen Brinkman

A lightweight, cross-platform and user-friendly Modbus RTU sniffer tool with a graphical interface.
Project Owner Contributor

ModbusSniffer

niwciuniwciu

All the instructions laid out in systematic manner
Project Owner Contributor

Instruction Set for ECM-16/TTL homebrew cpu

pavelPavel

16 bit Computer made from ttl logic chips
Project Owner Contributor

ECM-16/TTL homebrew computer

pavelPavel

Button field 35 buttons. Normal mode - control. Symbol and service character modes are called by holding one of the function buttons.
Project Owner Contributor

Reflections on the Portable HMI - 2

slpostmannSl_Postmann

Using 5 cheap BJT (BC547) I built a small, cheap and easy class C QRP amplifier for HF bands.
Project Owner Contributor

1-30 MHz 0.5-1W class C amplifier

guidoGuido

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