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This project is a compact, DIY laboratory power supply platform based on the ESP32, designed for hobbyists and makers to explore analog and digital circuits with precision and flexibility. The system features closed-loop motor control for accurate voltage and current adjustment, real-time measurement, and an intuitive graphical display. Users can choose from predefined voltage and current presets or save their own custom settings for repeated use.
The assembly process involves putting together the ESP32 control board, integrating the motorized potentiometers, connecting the measurement sensors, and wiring the display. Step-by-step tutorials with images, GIFs, and short videos guide users through every stage, from soldering components to configuring software and calibrating the outputs. The firmware can also be updated over-the-air (OTA), allowing users to easily apply improvements and new features. Visual materials showcase the setup process as well as the operation of the presets, voltage and current measurements, and motor control in real time.
This project is significant not only for personal learning and experimentation but also for the maker community. Sharing the design, practical tips, and troubleshooting experiences helps others avoid common mistakes and accelerates their path to creating a functional, precise, and flexible DIY laboratory power supply.
