
30
J1850VPW Module XC68HC58
This project is for GM communication on the class 2 network ( J1850VPW)

41
Pico Console v1 – PCB-Based Retro Gaming Console
A compact, fully PCB-based retro gaming console built around the Raspberry Pi Pico, featuring an OLED display, tactile buttons, onboard power management, and a minimalist enclosure-free design.

70
Mini-4x4-car-using-ESP32-S3-mini
Smart mini 4x4 robot having multiple features like: Line following, Obstacle avoidance, Bluetooth control car (RC) and many more

221
The Beetles PCB ART
It's a PCB art board. It’s a music player. It's something else entirely. Hard to define.

194
12V battery charger
LM317 is in the house!
251
SerpenTime
Serpentime is a digital internet clock that transforms into a retro Snake game console at the press of a button

429
Mini USB UPS for Raspberry
This project is the design of a compact USB uninterruptible power supply (UPS), intended primarily to power and keep devices like Raspberry Pi continuously energized during power interruptions. It provides a stable 5 V regulated output with automatic switchover between USB input and battery backup, while maintaining safe battery management and high overall efficiency.

412
Audio amplifier with 1x TDA2030 - 25W
A fairly well-known and interesting circuit.

311
QuasarQ
An ESP32 Powered Space-Themed Interactive Quiz Console

383
Leptosis - 7.5mm PG1316 wireless split keyboard
Leptosis is an ultra flat split bluetooth keyboard. It's thickness will be ~7.5mm, and employs the compact miryoku layout. Using an onboard nrf module, it achieves an ultra long battery life.
413
PiBoy Advance
PiBoy Advance is a modified GBA shell that is retrofitted with a custom PICO 1-based circuit.

649
RP2350 based GPIO expansion card
Framework Expansion Card based on RP2350 providing GPIO to the mainboard (OSHWA UID: IT000024)

415
SolMate
a sleek, solar-powered charger that keeps your devices energized wherever you roam

363
Near-Field Probe with Integrated LNA
This project implements an active near-field probe with an integrated Low Noise Amplifier (LNA) for electromagnetic compatibility (EMC) diagnostics. It is designed to improve sensitivity when measuring low-level emissions from circuits under test, enabling effective near-field scanning in the DC to 1.1 GHz range.

485
RP2050 based Single-Pair -Ethernet PCB
The project using Raspberry Pi RP2050 series of SoC with Single Pair Ethernet chip

1029
High-Performance Synchronous Buck Converter Module
This project is the design of a DC-DC buck regulator module based on the AP64501. It is mechanically and electrically compatible with the popular LM2596-based low-cost Chinese modules.

285
Small ARM dev board based on ATSAMD10
This repository takes a step-by-step look at creating a simple ATSAMD10-based dev-board using KiCAD.

725
nanoSense:Motion - Ultra Low Power Wireless Motion
Motion & Human Presence Sensing with Ultra Low Power Consumption and Bluetooth Low Energy Connectivity

700
USB 3.x Type-C Switch
The goal of the project was to design a KVM style USB 3.x Type-C Switch.

420
CoolSWITCH - Wireless High Power Smart Switch
Designed for Industry 4.0, but suitable for smart home too. Features WiFi control, current measuring, PWM, soft start / stop and safety.