Duplex communication between two arduinos using NRF24L01 (WiFi module)

Question

I am trying a two way chat between two Arduinos using serial monitor. I tried all the examples online but didn't work

Answer 1

Are you using wired or wireless communication interface?

Make a circuit according to the given diagram. Connect the RX and TX pins of Arduino vice versa (the first TX pin of Arduino to the RX pin of another and the first RX pin of Arduino to the TX pin of another). Also, common the ground pin of both Arduino. Image: connection diagram

This is one way communication and for two way communication use simple data handling operation to achieve your task and i will let it to you. Just try it more and if you don't find the final solution then let me know once :)

At the sender side use this code:

char str[5] = "Arduino"; //String data

void setup() {
  Serial.begin(9600);
}

void loop() {
  Serial.write(str,5); //Write the serial data
  delay(1000);
}

At the receiver side use this code

char str[10]; //Initialized variable to store recieved data

void setup() {
  // Begin the Serial at 9600 Baud
  Serial.begin(9600);
}

void loop() {
  Serial.readBytes(str,5); //Read the serial data and store in var
  Serial.println(str); //Print data on Serial Monitor
  delay(1000);
}