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harmanjitsingh / clockthree

Automatically exported from code.google.com/p/clockthree
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HW: Speaker rings when LEDs are scanned. #20

Closed GoogleCodeExporter closed 8 years ago

GoogleCodeExporter commented 8 years ago 
When no sound is intended, the speaker will ring as the LEDs are scanned.

I've tried to mitigate by holding SPEAKER_PIN LOW, or HIGH which helps but does 
not eliminate issue.

Also tried cap across speaker pins, which stops the sound completly (even when 
you want it) or does not help (if the cap is too small).

Maybe we need to play with resistor values.

Original issue reported on code.google.com by wyojus...@gmail.com on 17 Dec 2010 at 11:50

GoogleCodeExporter commented 8 years ago 
OBE... deleting and moving on to C3JR KS version

Original comment by wyojus...@gmail.com on 11 Feb 2012 at 11:38