Hardware projects using transistor
Open transistor hardware projects on BoardRepo. View the schematic, PCB, and BOM in your browser and download the sources, BOM, and Gerbers.
Projects
High performance motor control
8-bit microcomputer built from commercially available and home-built components
Implementation of a Hybrid Robotic Nervous System combining low-level reflex circuits and high-level AI cognition to study adaptive locomotion in quadruped robots.
Stores the code and schematics for the sensor used to monitor the level in the water tanks on our property
Digitally Enhanced Power Analog (DEPA)Modular Power Distribution System featuring USB-PD negotiation and Digitally Enhanced Power Analog (DEPA) control. Designed to provide low-noise, high-efficiency power for precision mixed-signal instrumentation stacks.
A versatile ESP32-C6 expansion board featuring Wi-Fi 6 and Bluetooth 5, designed for modular integration in proof-of-concept embedded projects. Supports QSPI, SPI, I2C, and UART interfaces for flexible connectivity with host MCUs. Ideal for IoT and wireless applications needing low-power, high-speed communication.
ESP32C3 based PWM-fan controller board
Badge HackGDL v2.0 2025
Development of programmable logic controller, product for mechatronic design.
Oxebots electronics design for the RoboCup Soccer Small-Size League
Bluetooth remote release for the Mamiya RZ67: ESP32-C3 firmware, KiCad PCB and enclosure. Shutter, bulb and countdown from your phone.
Wireless ortholinear keyboard
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A 156 mm reaction-wheel cube that balances on its edge and corner — Lagrangian derivation, Simscape multibody simulation, per-corner LQR, and Teensy firmware validated against 373 s of flight telemetry.
Full and open hardware design for FIRM
Custom made Pi hat for use in Airbrakes
KiCAD files for the rocket launch detection relay board
Niphargus — a slim, indestructible wireless split keyboard. ESP32 + nRF24, wired fallback, and an emergency kit hidden behind the USB port. The successor to the Rouge-Gorge.
A fun Christmas PCB game
Mr. Koh ESP32-C3 RISC-V Development Board
What is this ? This project aim to build an Open-Source Engine Control Unit (aka ECU), fully programmable, accessible and modifiable, specificaly designed for motorcycles. It is still in "protoype" stage. The goal is to end with a solution suited for...
MLAB module for the TN0181ANVNANN-GN00 square MIP (Memory-in-Pixel) LCD display. Communicates over 3-wire SPI (SCLK, SI, SCS). Includes an onboard MIC1557 RC oscillator for VCOM generation — no external signal required. Powered from 3.3 V via the MLAB 2×7 pin header.
Mussel Gape Tracker circuit board designs
Keyboard | Hall Effect | OrthoLinear | Programmable | Standard-sized
Stackable, contract-driven module system for the Raspberry Pi Pico — open hardware, built by code
A home weather station with internet connectivity
Plafonier à LEDs
KiCAD Design files for Sonata PCB, part of the Sunburst Project
A simple solution to prevent a solar powered LoRaWAN gateway from going into brownout when the batteries drop in voltage.
Hardware, software, and devlog of the Athan Lamp project.
Garage door controller with integrated motor driver 24V/36V, 7A
DOS-controlled nixie clock, built with four IN-1/LC-516 tubes and interfaced through the LPT port.
An STM32H743 development board with on-board USB-HS and CAN-FD (up to 8Mbit/s)
A digital min/max thermometer.
Mechanical Numerical Keypad with local Audio FX The desire to make this little keypad came from idea to reuse a some of the parts from a broken keyboard someone gave me.
Rebuild of a Transcell Model TCS3T-60LB
UniQHW
Reaction Game - one or two wooden rods fall down and you have to catch them
KiCad6 project for my raspberry pi picow fan controller
Mazzilli-topology ZVS driver — simulated in LTspice, built on a custom PCB and characterized on the bench
Diseño en esquematico y PCB de un Theremin
mini HC-SR04 based board
BugCON Badge 2025
Security BSides CDMX 2025 Badge
Badge HackGDL 2026
ESP32-P4 all in one computer with x4 USB hosts Audio, HDMI, MIPI CSI, MIPI DSI, LiPo battery operation, Ethernet with POE
Development board for GateMateA1 CCGM1A1 FPGA from Cologne Chip with PS2 VGA 64Mbit RAM RP2040
The Vulnerable Satellite Hacking Platform for Learning Through Research
Development board for ESP32-P4 Dual core RISCV processor from Espressif
Hardware design, BOM, gerbers and 3D files for Soldered-Inkplate-6-MOTION designed by Soldered Electronics.
This repository contains every single PCB that i have ever designed. The major applications used are Kicad and EasyEDA
💡 Schrankbeleuchtung
Test
Table clock using VFD.
Kicad project for a half bridge gate driver PCB for MOSFETs with TO-247-4 package and pinout [Drain,Source,KelvinSource,Gate].
A pcb with an adresseble RGB led christmas tree you can give away as a christmas card.
Mockingbird-Dual-Lane-Card A dual subscriber line card for the Mockingbird Telephone Exchange
Mcu controlled three phase motor driver with PPM input
A modular synthesizer, where modules are designed as close to bare PCBs as is practical/safe. This is the spiritual successor to the briefcase modular synthesizer.
Printed circuit boards (PCBs) designs for some electronic circuits