VMAC PiHat Test Code 1.0

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Create Date December 9, 2017
Last Updated December 11, 2017

HAMKit VMAC PiHat | Test Loop Example Code to Setup GPIO and I2C.  v1.0

GPIO : Ground an Input (Button/SQ1-4), flash LEDs depending on which input selected.
I2C FMS6501 : Scan all Matrix inputs to all Matrix outputs. Used on test jig to check all OK.

When testing Matrix, input line level audio @ 1kHz tone and as the input matches output selected, a tone will beep.

Dave Williams G8PUO, December 2017

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