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Arduino mega + mp3 shield + external power supply = strange noises :( - Project Guidance - Arduino Forum
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Amazon.com: KOOBOOK 2Pcs Voice Playback Module MP3 Trigger Player Board SD/TF Card for Arduino : Electronics
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Amazon.com: 3PCS Mini MP3 Player Audio Module MP3 Voice Decode Board TF Card U Disk IO/Serial Port/AD Board DFPlayer Audio Voice Music Module for Arduino : Electronics
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