Gravity: UART MP3 Voice Module with 8MB Flash Memory SF_Relay Real time clock (RTC) keeps

Real time clock (RTC) keeps the time going even when the Arduino is unplugged

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ch2 to OUTPUT_MODE0

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please note this only works in windows

Gravity: UART MP3 Voice Module with 8MB Flash Memory SF_Relay Real time clock (RTC) keepsDo you always feel like the DIY work is boring, not attractive or no vitality when you design it by yourself? This new Gravity MP3 voice module produced by DFRobot can solve these problems. This module can store 8MB audio files, which means it can store more than 200 audios for your choice, support MP3 and WAV formats. Its storage method is as simple as USB flash drive, and audios can be updated at any time. It uses the DF Gravity interface, free from