First to say: Compatible with Arduino UNO R3, OPEN-SMART Rich UNO R3 is an ATMEGA328P-PU development board with rich peripherals. Peripherals include 4 digit display, DS1307 clock, LM75 temperature sensor, infrared receiver, serial MP3 player, rotation angle sensor, 4-channel touch sensor. Hardware…

OPEN-SMART Rich UNO R3 MP3 for voice broadcast project

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