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

michael-wesselMichael Wessel

My attempt at making a fun humanoid-like robot.
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Almost humanoid robot

tanguyTanguy

Real-world sourcing notes on unusual LED filament and COB shapes for wearables, jewelry, and small hardware projects.
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Weird Shaped LED Sourcing Notes

sesamewensesamewen

Open source USB rubber ducky, from Arduino Micro to ESP32-S3
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EvilDuck S3: The RubberDucky I Always Wanted

cifertechCiferTech

A tiny FPGA-resident programmable sequencer that controls time and space directly
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PTSG — Programmable Timing Sequence Generator

tsuneoohnakaTsuneo.Ohnaka

The Pocket LAN Tester is a small handheld tool that gives quick network feedback directly on an OLED display.
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Portable Raspberry Pi Pico LAN Tester

markusMarkus

A Practical 4-Bit Educational Computer * Reinvented Retro Contest 2021 Winner *
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Microtronic - The Next Generation

michael-wesselMichael Wessel

A Talking Arduino-Based Emulator of the Busch 2090 Microtronic Computer System.
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The Talking Microtronic Computer System Emulator

michael-wesselMichael Wessel

Compute like its 1981 - hex on a 6digit 7segment LED bubble display! (One of the) RetroChallenge 2021/10 "Winners"
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A Retro-Authentic Microtronic - RC 2021/10 Winner

michael-wesselMichael Wessel

Where we excavate the firmware ROM of the 1981 Busch 2090 Microtronic Computer System from its mask-programmed TI TMS1600 Microcontroller
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Microtronic Firmware ROM Archaeology

michael-wesselMichael Wessel

After 45 years, the original Microtronic firmware ROM rises from the ashes and flies with new hardware!
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Microtronic Phoenix

michael-wesselMichael Wessel

A modern-retro computer based on the Z80.
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Zara80

trevor-rh-clarkeTrevor R.H. Clarke

The basic idea is to give PCB review its own workspace.
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PCBAtlas: a PCB review workbench for iPad, iPhone,

astroformastroform

Hardware add-on to enable Voja4 to speak I2C with a full-featured 6-pin SAO socket.
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SAO Adapter for Voja4 Badge

andy-geppertAndy Geppert

Device for detecting GHz radio frequencies
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RF Detector with LM1458 op amp

florian-wilhelm-dirnbergerFlorian Wilhelm Dirnberger

PowerPD, a compact ESP32-based programmable power supply that turns a USB-C PD charger into a small bench supply.
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PowerPD — ESP32 USB-C PD/PPS Bench Power Supply

raushan-kumarRaushan Kumar