Microcontroller boards
ATmega Soldering Station
by wagiminator
T12 Quick Heating Soldering Station
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T12 Quick Heating Soldering Station
by staticintlucas
A small, thin, USB-C, Pro Micro compatible microcontroller
by botletics
Arduino-compatible wireless reflow oven controller ecosystem of open-source hardware
by jkramarz
The Tick is the next evolution in covert access control system implants for simulating adversary-in-the-middle attacks.
by tebl
A PCB being made while watching Ben Eaters "Build a 6502 computer" video series. Includes the computer itself, a standalone slow clock and an Arduino Mega shield for the bus monitor sketch..
by IgrikXD
A compact hardware device for transmitting WSPR messages based on the SI5351 clock generator, using GPS for transmission timing synchronization and automatic QTH locator calculation.
by technoblogy
A self-contained computer with its own display and keyboard, based on an ATmega328 or ATmega1284, that you can program in Lisp.
by tvixen
With these schematics and PCB's, it's possible to create a 230V AC 4KW inverter. The main processor is based on Arduino Nano, with help from a graphic processor Arduino Mega2560, to run the demanding graphic and interface to front buttons.
by vul-os
Open hardware: 107 KiCad PCB designs — SMD-to-THT breakout adapters, ATTiny/ATMega/ESP development boards, and a 39-part sensor line on a common JST-SH connector.
by stonedDiscord
Sega Mega Drive Schematic and Board Files
by aKaReZa75
This repository involves an educational header board for the ATMEGA328 AVR microcontroller, compatible with the Arduino UNO.
by valerionew
A dock for Onion omega, omega2 and omega2+. It features: Microusb for power supply, USB host, Ethernet
by BEEMB
Battery Health Monitor A compact device for monitoring the State of Health (SoH) and State of Charge (SoC) of lithium batteries. It uses the BQ27441 fuel gauge IC and BQ24075 charger IC, along with an ATmega328P microcontroller, to provide real-time battery data and display it through LED bars.
by maelh
Radio frequency prototype boards (based on MegawattKS' design)
by hkzlab
This board converts CGA/EGA/MDA/Hercules TTL signals into analog RGB signals that can be fed into a compatible monitor
by KabukiFlux
PCB form Megadrive/Genesis 2 RGB minidin to Scart adapter with 12V DCDC boost (4:3 switching)
Every project listed here belongs to its author and is linked to its original repository. Licences are read from the repository metadata and summarised for convenience — check the licence file in the project itself before you manufacture or redistribute a design. ProtoFlow does not host, mirror or verify these files. Index last rebuilt 2026-09-21.