Microcontroller boards
Easyduino
by Hanqaqa
Easily dive into different PCB KiCad designs of the most popular microcontroller devboards
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Download ProtoFlowby Hanqaqa
Easily dive into different PCB KiCad designs of the most popular microcontroller devboards
by Neumi
Open Source, easy to use Ethernet connected stepper motor controller. Built in FreeCAD, KiCAD and Arduino.
by tmk
Keyboard Controller Board for HHKB pro2 - KiCad project
by newdigate
Hardware Design: Eurorack shield for teensy 4.1 with 14 in / 16 out analog channels
by LibreSolar
Hackable and open source MPPT solar charge controller
by staticintlucas
A small, thin, USB-C, Pro Micro compatible microcontroller
by jkramarz
The Tick is the next evolution in covert access control system implants for simulating adversary-in-the-middle attacks.
by polykit
Polyphonic Digitally Controlled Oscillator (DCO) controlled by Raspberry Pi Pico PIO
by Envious-Data
An open source RP2040 MCU Board Family
by LibreSolar
MPPT charge controller with HS load switch and CAN bus
by OpenLightingProject
RP2040-based USB DMX dongle with integrated web server
by ckflight
BLDC 3 phase motor speed controller hardware design working with open source BLHeli_S firmware.
by ashpil
A modern yet simple Model M replacement controller
by LibreSolar
MPPT solar charge controller with dual USB ports
by Pakequis
A prototype board with connectors for electronic testing and development.
by ravinrabbid
RP2040 based firmware and hardware for DIY Taiko no Tatsujin Drum Controllers
by fishpepper
openhardware f3 flight controller with an integraded uSKY receiver
by hexagon5un
Run a dim LED + microcontroller on 10 uA? Sure! A ripoff of Ted Yapo's Tritilight Project
by AntonioMR
Placa controladora para motores controlada por un microcontrolador ATMEGA328
by h0lad
This is a Meshtastic Solar Node PCB based on the Heltec HT-CT62 and the linear solar charge controller TI BQ25185.
by Neumi
An Arduino shield to test the TMC2209 stepper motion controller by Trinamic.
by CIRCUITSTATE
Open-Source RP2040 Microcontroller Development Board
by antevens
A Relay PCB with a socket for a Raspberry Pi or Nvidia Jetson to control everything on a boat
by IRNAS
CNC machine control modules with Toslink optical cables
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 BASLQC
A GPLv3 Keyboard Controller created by xwhatit from Geekhack for IBM Model F and Beamspring capacitive keyboards. Archived by the BASLQC on Github.
by KerJoe
Prototype board for RTD2662 display controller
by junglejim8
Maximum Power Point Tracking Solar Charge Controller 100V input, 65amp
by DIYSynthMNL
A multi saturation module with voltage controlled wet/dry mix
by robertklee
Audio Effects Circuit Design & Embedded Systems (STM32F407 microcontroller) Design Project. Goal: with an analog audio input, pitch shift or add echo effect and output to a speaker. Circuit: designed AC level shifting circuit, active bandpass filter, LED matrix display and DAC quantization error smoothing in KiCad; manufactured as a printed circuit board; soldered components and tested PCB. Embedded Systems: FFT to extract frequency domain; NVIC with timer-raised interrupts to service analog sampling, button debouncing, and image display on LED matrix; memory and clock cycle optimizations
by ohdsp
Open Hardware DSP Platform - XMOS xCORE200 Platform based DSP and microcontroller PCB design - open source hardware - untested
by dj505
A compact keyboard-style controller for Pump it Up
by LibreSolar
Solar/Wind MPPT charge controller for DIN rail mounting
by LibreSolar
PWM solar charge controller with USB charging port
by KabukiFlux
JAMMA Xbox360 wired controller for RGBUNTU/PI cheap
by atoomnetmarc
Schematic, PCB files, firmware and 3d models for creating the IoT12 solder iron temperature controller for T12 compatible tips.
by neggles
ESP32-S2-WROVER/WROOM based CANBUS controller thingy.
by weirdgyn
Driverino-Shield is an Arduino based simple, low power controller for PM BLDC sensored motors.
by brenocq
High-precision BLDC motor and controller development from scratch (in progress...)
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.