NRF PUSH BUTTON CODE For transmitter:- #include "nRF24L01.h" #include "RF24.h" #include "SPI.h" #define SwitchPin 2 int SentMessage[1] = {000}; RF24 radio(9, 10); // NRF24L01 used SPI pins + Pin 9 and 10 on the NANO const uint64_t pipe = 0xE6E6E6E6E6E6; // Needs to be the same for communicating between 2 NRF24L01 void setup() { pinMode(SwitchPin, INPUT_PULLUP); digitalWrite(SwitchPin, HIGH); radio.begin(); // Start the NRF24L01 radio.openWritingPipe(pipe); // Get NRF24L01 ready to transmit } void loop() { if (digitalRead(SwitchPin) == LOW) // If switch is pressed { SentMessage[0] = 111; radio.write(SentMessage, 1); // Send pressed data to NRF24L01 } else { SentMessage[0] = 000; radio.write(SentMessage, 1); // Send idle data to NRF24L01 } } For Receiver : - #include "nRF24L01.h" #include "RF24...