Hardware projects tagged electronics

Simple current probe to measure current with an oscilloscope

A compact signal generator (sinus, triangle, square) with tunable frequency project implemented in C with a custom PCB. This repo contains the firmware, PCB files and a project report describing the design, implementation and test results.

A sensor which sends an email notification whenever somebody opens a door.

ATtiny85-based 1-10V LED dimmer

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.

Open-source reverse polarity protection module for learning and embedded electronics projects.

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

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

Opensource CubeSat: Hestia. Currently Mk0, imaging mission.

KiCad breakout board and Arduino driver for the Linear Technology LTC1446 dual 12-bit SPI DAC

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.

Logic-level N-channel and P-channel MOSFET modules for education, breadboarding, and prototyping.

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.

An electronic dice on attiny85, including PCB

Development of programmable logic controller, product for mechatronic design.

A simple SDIO breakout FeatherWing adapter board (KiCad)

Plafonier à LEDs

Hardware, software, and devlog of the Athan Lamp project.

Battery-powered ATmega328P data logger with RTC and dual EEPROM — designed in KiCad, optimized from 4-layer to 2-layer PCB.

A digital min/max thermometer.

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

mini HC-SR04 based board

A Pmod™ Compatible peripheral module featuring a pair of active optical audio transmitter/receivers

RC helicopter remote control based on an STM32 MCU

Carte electronique d'un afficheur holographique Pepper's Ghost : CAO KiCad 4 couches entierement generee par du code et verifiee automatiquement

Adjustable/Fixed DC power supply using LM317 with bridge rectifier and filtering capacitors.

KiCAD keyboard layout for MK-52 soviet calculator

Archival hardware/firmware for the MM54104 Digitalker chip

A hex-based modular system to build custom nerf gun targets

Lap timer, EKA 2 sem PWR

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

Link to Video — composite video + USB-C power replacement for the NES RF modulator. OSHWA certified open source hardware, UID US002842.

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

The Safe Security System monitors for changes in temperature and light while a safe is closed. If a minimum threshold is exceeded, the system notifies the owner only when the safe is opened normally.

RS-485LP is an open-source RS485 converter featuring a custom PCB and optimized PlatformIO firmware. It is designed to minimize power consumption for battery-operated sensors and remote monitoring systems.

A fun and simple PCB badge made using an ATTINY85 microcontroller and some LEDs.

PCB de accesorios para Raspberry Pi y Arduino.

Power distribution board for the F1Tenth car, initially developed for the Czech Technical University.

Electronic project for use a IR Remote Control to control a PC

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

I2C Peripherals Board for Raspberry Pi Zero

Electronics Board for a Gigapixel Panorama Head (pan and tilt motion)

A 555 timer based servo controller designed in KiCad, including the schematic, PCB layout, 3D model, and fabrication files

A handheld games console, based on the Raspberry Pi Pico.

PCB de un pedal Talkback con una entrada de audio y dos salidas.

A very simple cheap solar lamp

This project showcases the design and development of a digital photo frame based on the ESP32. It extracts images from a Micro SD and renders them on a TFT ILI9341 display. It features low power consumption, the hardware includes a TP4056 module, for charging and uninterrupted operation. This project is beginner-friendly and easily customizable.

Transistor based flip-flop Circuit designed in KiCad.

This repository contains the design files for a reliable and safe 12V DC Regulated Power Supply. The circuit is designed to convert an AC input (from a transformer) into a stable 12V DC output, focusing on high-voltage safety, heat management, and low-ripple performance.

Custom Function Generator designed and developed by Olaoluwa Raji. This project is a complete embedded system solution with both hardware and software implemented by me. Relevant reference materials are included.

A custom PCB business card with a functioning microcontroller

Puya PY32F002A ARM M0+ minimal development board (ESSOP10 package)

Implementación de videojuegos mediante la biblioteca VGAX de Sandro Maffiodo

Custom MachXO2 FPGA Development Board - KiCad Design - Power, Clock, JTAG, LEDs - By Jay Waghmare

KiCad-based Ambient LED System - Auto brightness via LDR - Hardware project

Manufacturing-ready Li-Ion Battery Protection PCB designed using KiCad 9 with complete documentation, Gerber files, simulations, and manufacturing package.

Complete design files for a USB-C 5V Power Supply, created using KiCad.

Low-frequency 134.2 kHz RFID reader using EM4095 and ESP32

Professional ESP32-WROOM-32 development board with USB-UART programming, 3.3V regulation, BOOT/RESET control, GPIO expansion, I2C ESD protection, and complete KiCad manufacturing documentation.

An open-source STM32F103C8T6 development board designed for environmental monitoring, featuring integrated Li-Ion battery management, USB-C, MicroSD data logging, and onboard I2C sensors for temperature, humidity, and ambient light.