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A low-power, compact keypad module based on the STM32L010K4T6 microcontroller. This project includes a 12-button keypad interfaced with a host MCU via I2C or UART, designed to serve as a mini keyboard ...
Body Dimensions 166.9 x 76.8 x 8.1 mm (6.57 x 3.02 x 0.32 in) ...