NRF24L01 + SERVO problem

Projects Programming
1

Hi everyone

I have problem sending and receiving data at the same time using 2 NRF24L01 and 2 arduino uno

This is the code but there is no contact between them

Note that when you send a hand and receive it on the other hand it succeeds

960×573 33.8 KB 

//tx
#include <SPI.h>
#include <nRF24L01.h>
#include <RF24.h>
#define led 12
RF24 radio(7, 8); // CNS, CE
const byte addresses[][6] = {"00001", "00002"};
boolean buttonState = 0;
void setup() {
  pinMode(2, OUTPUT);
  radio.begin();
  radio.openWritingPipe(addresses[1]); // 00001
  radio.openReadingPipe(1, addresses[0]); // 00002
  radio.setPALevel(RF24_PA_MIN);
}
void loop() {
  delay(5);
  radio.stopListening();
  int potValue = analogRead(A0);
  int angleValue = map(potValue, 0, 1023, 0, 180);
  radio.write(&angleValue, sizeof(angleValue));
  delay(5);
  radio.startListening();
  while (!radio.available());
  radio.read(&buttonState, sizeof(buttonState));
  if (buttonState == HIGH) {
    digitalWrite(led, HIGH);
  }
  else {
    digitalWrite(led, LOW);
  }
}

//rx
#include <SPI.h>
#include <nRF24L01.h>
#include <RF24.h>
#include <Servo.h>
#define button 4
RF24 radio(7, 8); // CNS, CE
const byte addresses[][6] = {"00001", "00002"};
Servo myServo;
boolean buttonState = 0;
void setup() {
  pinMode(button, INPUT);
  myServo.attach(5);
  radio.begin();
  radio.openWritingPipe(addresses[0]); // 00002
  radio.openReadingPipe(1, addresses[1]); // 00001
  radio.setPALevel(RF24_PA_MIN);
}
void loop() {
  delay(5);
  radio.startListening();
  if ( radio.available()) {
    while (radio.available()) {
      int angleV = 0;
      radio.read(&angleV, sizeof(angleV));
      myServo.write(angleV);
    }
    delay(5);
    radio.stopListening();
    buttonState = digitalRead(button);
    radio.write(&buttonState, sizeof(buttonState));
  }
}
2

Add some Serial.println() debug output so you can see what's actually happening.

3

The same problem

4

Of course debug output isn't going to fix the problem.

5

Have a look at this Simple nRF24L01+ Tutorial.

...R

6

Robin2:
Have a look at this Simple nRF24L01+ Tutorial.

...R

I applied all the examples but the same problem

7

ardono2017:
I applied all the examples but the same problem

Well, let's focus on one of my examples and get that working for you. Pick whichever seems most appropriate for your needs and post the code YOU uploaded to your Arduinos. Also post some examples of the output to the Serial Monitor.

...R