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STM32F407-based line-following robot with an IR sensor array, dual L293DDM motor drivers, 0.96" OLED display, Bluetooth 4.0 (JDY-30), MPU-6500 IMU, and onboard buck/boost power management. Designed in EasyEDA. Rev 1.0.

Hardware and firmware for cashless payment device for cold drinks at the aeroclub at EDLH

Smart WiFi thermostat based on the well-known ESP8266 SoC.

A 3D printable ergonomic wireless Artsey-based keyboard running ZMK.