Tuesday, July 30, 2013

soundTrigger rising

Playing with an electret microphone and a simple circuit.
A Mega328 samples the noise generated by the circuit and triggers a camera on the output via an opto-isolator.
Schematic in Eagle
Bread boarded Prototype
Measuring I/O performance
Performance looks promising. Measuring a triggering delay of 35uS (microseconds).
Arduino sketch to follow...


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