Open source calculator CG-35, RPN calculator similar to HP-35

Schematic PCB

Magnetic levitation system based on STM32F407

Support revolution, fixed height, side floating

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ardEEG: Low-cost brain-computer interface supporting 8-channel EEG, EMG and ECG biosignal measurements

Schematic PCB

Wee Noise Makers PGB-1: Open Source Audio Synthesizer

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Glider: Open-source Eink monitor with low latency (including detailed explanation of Elink principle)

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Hackbat: Open source hacker hardware platform based on RP2040, penetration testing tool

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STEVAL-FSM01M1: ST's dual-channel digital I/O module for industrial safety applications

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Tildagon: EMF reusable electronic badge, beyond 2024

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Seamlessly stream 4K 30 fps video from external HDMI sources to USB hosts over USB-C

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650 V 400 A six-cell automotive qualified IGBT module

650 V 200 A six-cell automotive qualified IGBT module

Integrated Turnkey Reference Design for Rotary Refrigerator Compressor Drive

Schematic PCB

High-Efficiency 65W USB-C Dual-Port Charger Reference Design with ATQ Transformer

100W USB-C dual-port charger reference design with single-stage PFC

170 W AC-DC reference design with input voltage range for e-bike and power tool battery chargers

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LibreTimeBase: Rubidium clock control board

Schematic PCB

Green Smart BMS: Intelligent Battery Management System

The project originated when the author purchased an electric motorcycle for his daughter and replaced its original lead-acid gel battery with a lithium battery pack. Due to the lack of smart, cheap and easy to configure lithium battery management systems on the market, the author decided to make one himself.

Schematic PCB

Quadrant: Gesture audio adjustment based on 4 TOF sensors

Schematic PCB

RP2040 based ohmmeter with audio and ribbon feedback

Open ECU control module

Schematic PCB