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Topic: Music chip only buzzes when powered by digital pins (Read 1 time) previous topic - next topic


I took a music chip from a cheap, made-in-China, toy.  The music will play when powered by the Arduino Uno 5V pin.  But, when I try to power it with any of the digital output pins (e.g., pin 11 or 13) all the speaker will do is buzz instead of playing the music.  Anybody know why this occurs and how I could make it work with the digital pins?


Sep 08, 2013, 03:53 pm Last Edit: Sep 08, 2013, 03:56 pm by TomGeorge Reason: 1
Hi, how much current does the music chip need to run?
If it can power a speaker then I'd say its more than the 20mA that can be supplied by an output pin.
To control it with the arduino you could use the output to control a relay that switches the 5V on and off.
Everything runs on smoke, let the smoke out, it stops running....


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