4 layers70.8 × 108 mm
Firmware
299 boardsKiCad boards from 137 GitHub repositories tagged “firmware”, the most starred first; open any of them in PCBKit.
- 2 layers60 × 37 mm
HydraBus
hydrabus/hydrabus
HydraBus open source multi-tool for anyone interested in learning/developping/debugging/hacking/Penetration Testing for basic or advanced embedded hardware
71 parts359 - 4 layers82.5 × 81.5 mm
- 2 layers43.2 × 17.6 mm
- 2 layers285 × 94.6 mm
- 2 layers69.2 × 20.8 mm
Fastusbasp v2
amitesh-singh/FASTUSBasp
This is the fast avr programmer for AVR MCUs based on cheap stm32f103c8t6 board with usb-to-serial support.
25 parts106 - 2 layers141.4 × 115.9 mm
- 2 layers280.2 × 132.1 mm
Midi mixer one
markwheeler/midi-mixer-one
MIDI Mixer One is a mixer-style MIDI controller built around Teensy. Includes hardware designs, firmware and a web config tool.
72 parts65 - 2 layers197 × 249.7 mm
- 4 layers137 × 141 mm
- 2 layers164 × 73 mm
- 2 layers68.6 × 53.3 mm
RescueAVR
felias-fogg/RescueAVR
An Arduino sketch that is able to do high-voltage programming in order to resurrect bricked AVR MCUs (you need a bit of HW on a breadboard or some special Arduino shields as well)
24 parts56 - 2 layers219.1 × 76.2 mm
- 2 layers303 × 104.5 mm
- 2 layers25.4 × 45.7 mm
- 2 layers23 × 45 mm
- 2 layers70 × 151 mm
Dm50
xavierbasc/dm50
DM50 is a cheap, powerful, easy to build, open source hardware, and high precision calculator.
131 parts38GPL-3.0 - 2 layers148.8 × 132.2 mm
Usbflashprog
robsonsmartins/usbflashprog
A memory device programmer (Flash/EPROM/E2PROM) board and software, connected to PC by USB port.
125 parts36 - 2 layers56.6 × 57.7 mm
TashTwenty Tiny
lampmerchant/tashtwenty
An interface for the DCD protocol used by Apple's Hard Disk 20.
31 parts35GPL-3.0 - 4 layers31 × 15 mm
- 4 layers
Watch
BenjaminSoelberg/elektronika-1
A replacement module for the USSR vintage LED watch Elektronika-1 anno 1978
19 parts30GPL-3.0 - 2 layers56 × 110 mm
Trs pcb
Windfisch/midikraken
A open source, open hardware up-to-16x USB-MIDI-interface for around 15 bucks in its smallest configuration.
125 parts28 - 4 layers25.3 × 35.1 mm
Agb hifi audio pcb
cajunpanda/gameboy-hifi-audio
A HiFi audio mod for various Game Boy models
66 parts25MIT - 2 layers64.6 × 87.1 mm
