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Member Since: June 17, 2011

Country: United States

  • How do I connect an MP3 Trigger to an Arduino Uno? Can I just connect Arduino TX to Trigger RX and vice versa (and Gnd to Gnd)? Is there an issue with the Uno running at 5V while the Trigger runs at 3.3V?
    Alternatively, can I connect an Arduino pin to a Trigger pin and have the Arduino digitalWrite(p, LOW)?

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