I'd like to use the Audiomoth for audio recording and an Arduino to measure other things at the same location. Is there a quick way in which I can let the Arduino know that the Audiomoth is recording? i.e., is there a pin somewhere that is pulled high or low that I can connect the Arduino to?
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To see this working, head to your live site.
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There isn’t in the standard firmware but it would be very easy to modify the code to do this. Just a couple of lines of code to switch one of the GPIO pins high when the recording is running.