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Building a modern interpretation of a polyphonic modular analog synthesizer at the transistor level, inspired by early 1970s-80s designs.
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Polyphonic Analog Synthesiser

charlie-theobaldCharlie Theobald

A DIY, terminal-first cellular communication device designed as a personal network terminal rather than a modern smartphone.
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TERMINUS: A Terminal-Style Phone For The Geek

bolan-xuBolan Xu

Built a math quiz device for my little brother using an 8051, LCD, and rotary encoder — all bare-metal, no libraries, no shortcuts
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Problem Maker

bohan-xuBohan Xu

Goal of the project is to develop and build a homebrew 16 bit relay computer
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Homebrew 16 bit relay computer

peterPeter

Help Pico W to brew a shot.
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oximite - rust espresso control

pchalapchala

A 4-digit seven segment clock using multiplexing, timing logic, and custom hardware as an 8th grade electronics project
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ShiftClock

bohan-xuBohan Xu

Explore the magnetic properties of hydrogen with this build guide
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Nuclear Magnetic Resonance for Everyone

andy-nicolAndy Nicol

Confirming the operation of a X3000 supply and driving a fusor load.
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Spellman X3000 Supply Interface and Fusor

collin-matthewsCollin Matthews

A simple 4-bit CPU designed and built from scratch in 5th grade as my first step into real CPU design.
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BX-4

bohan-xuBohan Xu

Homebrew 8-bit TTL CPU, generation 2 of an ongoing series toward running Linux.
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BX-8

bohan-xuBohan Xu

A complete 16-bit pipelined CPU with virtual memory, floating point arithmetic, and multiplication and division.
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APEX-16

bohan-xuBohan Xu

It's annoying to guess at the brightness of an indicator when calculating for an LED.
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Why I built an LED luminosity tuner

charlie-kimCharlie Kim

Battery-powered circular flipdot clock.
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Flipdot Ring

muthMuth

A low cost robotic hand for robots and humans
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Yeah Robotic Hand (formerly Rebelia)

vittorio-lumareVittorio Lumare

16 bit Computer made from ttl logic chips
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ECM-16/TTL homebrew computer

pavelPavel

An open-source, ROS 2–based mecanum-wheel mobile robot designed to inspire your enthusiasm for robotics.
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LGDXRobot2

kai-tung-yuKai Tung Yu

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