I purchased a sound detector board but it is not working as I think it should.
The red LED on the board flickers sometimes but is basically on solid even with no background noise.
When I call analogRead I get numbers hovering around 500. It does not matter if I yell or if there is silence, the numbers always seem to hover in the same range.
Wondering if the board is working?
I have it hooked up to the ground, +5V and A15 on an Arduino mega.
Thanks,
Ken