FSR Sensor using an Lolin ESP32-C3 pico (pin compatible to Login ESP32-C3 mini)
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4-layer ESP32-C3 WROOM development board with USB-C, ESD protection, LDO regulation and differential pair routing — designed in KiCad
Small RGB LED Pendant using 1010 (1.0x1.0mm) WS2812B LEDs powered by an ESP32-C3 Mini with a BNO055 IMU
Full-cycle hardware designs for security research devices — each device is a subfolder with its own README, schematics, PCB layout, and software stack