Garage Door Opener

[bambuino]

@musicman608

The problem: I got the reed switch working at the receiver which lights up a red or green light but only at the receiver, I'm not coding it correctly to get the signal back to the transmitter so the remote lights light up. The reed switch is connected to the receiver and is working but I can't seem to get the signal back.

I think ACKs are enabled by default so you're TXer is prolly getting the acknowledgement. So in your TX sketch you will want to do that radio.read to catch that ACK back.

EDIT: Acknowledgements are enabled by default. But will need to enable ACK payloads as described rather well in below post by Robin2.

Simple nRF24L01+ 2.4GHz transceiver demo

Two-way transmission If the slave is required to send data back to the master it would seem necessary for the two devices to swap roles. Among other things that will mean that the "master" will need an address as well as the slave. The question of timing also needs to be considered - for example, how long should the master continue listening for the reply from the slave? And, if the slave is trying to write rather than listen it may miss a transmission from the master. Two-way transmission usi…