Really pleased to say the project took a giant leap forward tonight. Have re-written some of the code to work with pull-down resistor now 0v = off, 5v = on.
Tap a wire +5v to GPIO.0 ten times, then touch GPIO.1 once and the Tx Tx's and the Rx board flashes 5 times (simulates five visits to bird box).
Still plenty to do I'm sure but feeling a little like Marconi this evening.
Dave





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