Hardware projects tagged pcb-design

A Raspberry Pi HAT for the ESP32 C6

A simple project to convert a traditional USB-B UART bridge schematic to a modern USB-C interface.

Board data of Team NTK that competed in RoboCup Junior 2017 Japan Open (RCJJ '17)

Repository with the PCB design for the door alarm project.

Interface board to the TLV320AIC3204 EVB

Board data of Team NTK that participated in the RoboCup Junior 2017 Kanto Tournament

SOIC8-DIP8 footplint adapter PCB

Prototype for LI2026ODP

Test board of the EL-210 calculator

A compact PCB breadboard power supply that delivers stable 3.3V and 5V outputs with onboard regulation, switchable voltage rails, and standard breadboard compatibility. Designed for quick prototyping, reliable testing, and clean power delivery in electronics projects.

A Repository for Battery Management PCBs

Custom Raspberry Pi Pico-compatible development board designed from scratch in KiCad 10 using the RP2040 microcontroller.

Linux Macropad

Compatct Flash board for Nucleo H735ZI

Compact L298N motor driver PCB with integrated 7805 regulator and flyback diode protection

Two-channel brushed DC motor driver in KiCad. Discrete IRLZ44N H-bridges, IR2104 gate drivers, per-channel current sense and quadrature encoder inputs, on a 74 x 56 mm board with a Raspberry Pi Pico.

Raspberry Pi Pico board with full colar LED.

Flight controller PCB for a custom-built quadcopter based on the ATmega328 microcontroller.

7-Segment Display with 4 blocks of 2x4 digits

Ethernet / CF JIG for Nucleo H743ZG2

QMK conversion for Logitech G11 keyboard

A custom 4-layer ESP32-C3-WROOM-02 development board designed in KiCad 10 - includes USB-C power/data, schematics, PCB layout, and manufacturing files.

Simple device to switch one audio source between two outputs

An electronic dice on attiny85, including PCB

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.

Development of programmable logic controller, product for mechatronic design.

a simple development board based on CH32X033F8P6 microcontroller

32-bit Universal Shift Register designed in Logisim Evolution and implemented as a modular two-board PCB in KiCad with complete schematics, PCB layouts, 3D models, and manufacturing-ready Gerber files.

Open-source modular real-time embedded DSP guitar multi-effects platform based on Teensy 4.1, with custom hardware, C++ firmware, and real-time control.

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.

Kicad project using Arduino pro mini for beehive monitoring

KiCad project files for a BNO085 breakout board.

Mazzilli-topology ZVS driver — simulated in LTspice, built on a custom PCB and characterized on the bench

This project is a custom-designed RGBW LED lighting controller built with KiCad and designed to integrate seamlessly with Home Assistant using Tasmota firmware on an ESP8266.

mini HC-SR04 based board

KiCad hardware design for a battery-powered Bluetooth speaker — STM32WB15 BLE SoC, TDA7297 audio amplifier, switching power regulation.

This repository contains every single PCB that i have ever designed. The major applications used are Kicad and EasyEDA

Schematic and PCB fo simple custom retro gamepad

4x 1kg load cell weighing platform with Baykon TX11 transmitter and custom KiCad junction board

A PCB board that enables the use of a AM9511 Arithmetic processor on a TRS-80 Model II.

A custom FPGA VGA controller featuring logic prototyping in Digital, SystemVerilog RTL simulation and a 4-layer PCB designed in KiCad (iCE40)

KiCad design files for a simple shield for the Raspberry Pi Pico

PCB design of a guitar pedal based on the 3rd channel of Diezel VH4 amplifier

NWPi custom PCB - Power module for Raspberry Pi Zero inside NumWorks calculator

A Nixie tube wristwatch that was made from scratch with its own hardware and firmware. It was Inspired by Cyberpunk 2077 with its exposed flex PCB

An eight-legged walking robot I built end to end: chassis CAD, a 24-servo ATmega32U4 controller board, the firmware, and a browser IK workbench you can drive it from.

A credit-card-sized PCB that runs a neural network: ESP32-S3, 6-axis IMU, and 24 LEDs wired as the network itself. Draw a digit in the air and watch the activations light up

A custom circuit connecting 16 high-current IR LEDs, designed for integration with Raspberry Pi and imaging projects.

Transform your regular projector into a smart home device, enabling voice control and automation through Apple's HomeKit ecosystem.

Open-source six-layer Raspberry Pi CM4/CM5 carrier board with USB-C, 25 W PoE, M.2 NVMe, microSD, I2S, and expansion-board connectors.

Custom Raspberry Pi CM4/CM5 carrier board with PoE, Gigabit Ethernet, M.2 NVMe, microSD and peripheral interfaces.

Hardware design files for ADP2384 based 12 V to 3.3V@4A DC-DC buck converter designed using KiCad.

DC motor driver with current-based stall detection

Programs and CAD files for the LED hex display PCB.

Custom ESP32-S3 development board designed in KiCad, featuring the ESP32-S3-WROOM-1-N8R8 module, custom schematic, PCB layout, and supporting hardware design files

A KiCad PCB design and Arduino firmware for programming 28C16 parallel EEPROMs. Designed for Ben Eater's 8-bit computer microcode.

Custom 4-layer interrupter control board for DRSSTC systems. STM32F405-based, fiber-optically isolated outputs, hardware E-brake safety chain, and controlled-impedance routing (90Ω USB, 50Ω FSMC/SDIO). Designed in KiCad 9.0.

A simple PCB schematic for USB LED light that turns on when it's dark.

This is a general purpose AT89S51 (8051) board.

High-performance, open-source micromouse robot platform built for Robosam and MEB Robot (Ministry of National Education Robotics Competition, Turkey).