Microcontroller boards
Sirboard
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.
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Download ProtoFlowby 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 ckflight
Frequency Modulated Continuous Wave Radar hardware and software design files with 26 dBm output power covering around 250 m.
by rniwase
Board for converting SDTV analog video to MIPI CSI-2 using Analog Devices ADV7280A-M.
by Scottapotamas
A DIY high performance delta-bot for fun, and lightpainting...
by pinguz97
Kicad design files for a Zynq 7020 SoM
by openeew
Hardware for an OpenEEW sensor
by DoImant
TP4056 Power Sharing PCB. Charge battery despite connected load.
by galopago
Electronic hardware prototyping system. Solderless, robust and open source. Solves the typical problem of the circuit that works on a breadboard but stops working on a real-world setup. Easy to replicate and compatible with virtually every electronic module.
by GaudiLabs
Open Source Theremin Instrument, Shield PCB and Hardware description
by RandomDelta6
A basic USB mouse PCB based on the PAW3526D8-FJY2 Sensor.
by sunyitong
Open-source RP2040 replacement core board for the Polaroid SX-70 instant camera.
by mohamedboubaker
STM32 and SIM808 GPS tracker with a custom PCB design and support for MQTT and AES-128 encryption.
by h0lad
This is a Meshtastic Solar Node PCB based on the Heltec HT-CT62 and the linear solar charge controller TI BQ25185.
by jsanpe
A Composite & S-video to Component transcoder for the OSSC
by CIRCUITSTATE
Open-Source RP2040 Microcontroller Development Board
by robsonsmartins
A memory device programmer (Flash/EPROM/E2PROM) board and software, connected to PC by USB port.
by JohSchneider
a handheld gaming system build around the raspberry-pi zero running emulationstation
by tscircuit
Find parts from JLCPCB matching design constraints (resistance values, capacitance, tolerance etc.)
by 0101shift
All design files, source code, and documentation for Project OAK, a digital watch inspired by mechanical complications.
by maelh
Radio frequency prototype boards (based on MegawattKS' design)
by yeokm1
Schematics of the reverse engineered Pixmob wristband used in NDP2016. Sample IR brute-force code is available but has not been fully tested in practice.
by valletw
ESP32 ATX Power Controller
by newdigate
Hardware Design: 16 channel analog control voltage shield for teensy 4.1; 8ch in / 8ch out; +-10V @ 16bits/sample;
by cajunpanda
A HiFi audio mod for various Game Boy models
by ytmytm
C128 MMU 256K RAM expansion
by cwgstreet
ESP32 wifi enabled quad temperature probe device to monitor bbq meat / pit temperatures with wireless cloud data logging for remote monitoring and push alert notifications
by vd-rd
Open SBC module based on Allwinner V3s processor
by tomtor
STM32 and AVR128 Printed Circuit Board for creating IOT nodes with the RFM95 LORA chip
by UzixLS
Yet another Dendy (Famicom) clone - 8-bit home video game console
by rniwase
Nintendo Gameboy cartridge-shaped FPGA development board
by KabukiFlux
JAMMA Xbox360 wired controller for RGBUNTU/PI cheap
by Kampi
Zigbee environment sensor device with Zigbee2MQTT support.
by atoomnetmarc
Schematic, PCB files, firmware and 3d models for creating the IoT12 solder iron temperature controller for T12 compatible tips.
by UzixLS
Converts RGB + Sync analog signal to S-Video (and also Composite).
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.