he project is an electronic circuit for regulating negative voltage (Negative Voltage Regulators). This is a complete PCB project for stabilizing negative voltage, which includes a professional design of a printed circuit board (PCB) with all the files necessary for manufacturing and assembly. The circuit is designed to provide a stable and reliable negative voltage to electronic components, while protecting the system from voltage fluctuations. Suitable for use in analog systems, symmetrical power supplies, DIY projects and studying electronics.

Positive LDO based on TPS7A4701 low noise - 4 μVrms drop in replacement for old LM78xx series.

Project #12: Robotics - Joystick - Mk35

I built an RGB thermometer with its own web interface that can control home appliances based on temperature changes

Negative LDO based on TPS7A3301 low noise - 16 μVRMS drop in replacement for old LM79xx series.

By following these steps, you can create professional-looking, durable housings that give your DIY electronics a polished and functional finish.

Project #15: Environment - Buzzer - Mk36

Control panel for Home Assistant with voice assistant

Using the LVGL library and SquareLine Studio, I created a visualization that is not only functional, but also aesthetically enriches any audio system.

Give your pinball machine a modern upgrade with a custom PIN2DMD display—bringing vibrant color, sharper animations, and new life to classic gameplay.

Project #12: Robotics - 4WD Robot Car - Mk34

One of the best Chinese produced Energy Monitor ASICs now easier than ever to use

This project is the development of a fully integrated, standalone Voice Assistant built upon the ESP32-C6 microcontroller. It leverages two major cloud AI services—Gemini 2.0 Flash for intelligence and Murf AI for realistic speech generation—to create a seamless, conversational experience for the user.

This project transforms basic components like LED strips and an Arduino into a professional-grade arcade experience

Project #15: Environment - AHT20 Temperature and Humidity - Mk35

Using an ILI screen, I made a simple, yet cool display.