This is a BLE remote control module. It features a Microchip RN4871U BLE module for communication, various push buttons (Up, Down, Left, Right, OK) for control input, and a piezoelectric buzzer for audio feedback. Power is supplied by a battery and it is regulated to 3.3V for the BLE module.
#reusable #module #simple-embedded #microchip #module #sublayout
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