I have two Nano's each with an HC12, and the sketches below. This is just a simple test setup to get the hang of using them. On the transmitter side, the onboard LED blinks as it should, and the TX LED also blinks, though more of a flicker, but that's to be expected. On the receiving end, the RX …

SoftwareSerial HC12(1,0); //TX pin and RX pin Don't use pins 0 and 1 for SoftwareSerial because they are already used for the hardware Serial interface

HC12 data issues

Projects Programming

tpaairman October 4, 2021, 9:09am 3

Thank You. That seems to be the ticket. So much for YouTube.

But, any idea why you can't use HC12.write(0); ?

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HC12 data issues

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