Nrf24l01 unreadable data output

Projects General Guidance
1

im trying create my own remote control using nrf24l01 but the output is like this

␏?␡␡␡␡␡␡������������������������

␟␡␡␡␡␡��������������������������

this is the receiver code:

#include <Arduino.h>
#include <SPI.h>
#include <nRF24L01.h>
#include <RF24.h>

//create an RF24 object
RF24 radio(9, 8);  // CE, CSN

//address through which two modules communicate.
const byte address[6] = "00001";

void setup()
{
  while (!Serial);
    Serial.begin(9600);
  
  radio.begin();
  
  //set the address
  radio.openReadingPipe(0, address);
  
  //Set module as receiver
  radio.startListening();
}

void loop()
{
  //Read the data if available in buffer
  if (radio.available())
  {
    char text[32] = {0};
    radio.read(&text, sizeof(text));
    Serial.println(text);
  }
}

this is transmitter code:

#include <Arduino.h>
#include <SPI.h>
#include <nRF24L01.h>
#include <RF24.h>

RF24 radio(9, 8); // CE, CSN

const byte address[6] = "00001";

void setup() {
  radio.begin();
  radio.openWritingPipe(address);
  radio.setPALevel(RF24_PA_MIN);
  radio.stopListening();
}

void loop() {
  const char text[] = "Hello World";
  radio.write(&text, sizeof(text));
  delay(1000);
}
2

Mismatching com speeds?

3

are you using 9600 bauds in the Serial monitor ?

4

yess, but sometimes it result right

5

i guess its right

6

Look at examples in the library , I think the baud rate is wrong .
The examples will show you .

115200 I think …

1 Like
7

Guess? Check it!
Serial monitor has its speed shown down to the right.

8

I have test it before and got the same result

9

validate your circuits and power by running one of the example code to ensure all is right

10

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