NRF24L01 Transmission Problems between Arduino UNO and Arduino Nano I'm a beginner in using NRF24L01 tranceiver module. I tried sending a simple &quot;Hello world&quot; using Arduino Nano and a Arduino UNO with the use of two NRF24L01 modules. I don't get any output in the serial monitor at the receiver side. I checked the wire connection numerous times. Also checked the baud rate of both receiver code and the serial monitor are same and adddresses of the tranceiver code and the receiver code are same. Looking for a solution. Thanks in advance.
This is my tranceiver code:
#include &lt;SPI.h&gt;
#include &lt;nRF24L01.h&gt;
#include &lt;RF24.h&gt;
RF24 radio(7, 8); // CE, CSN
const byte address[6] = &quot;00001&quot;;
void setup() {
  radio.begin();
  radio.openWritingPipe(address);
  radio.setPALevel(RF24_PA_MIN);
  radio.stopListening();
}
void loop() {
  const char text[] = &quot;Hello World&quot;;
  radio.write(&amp;text, sizeof(text));
  delay(1000);
}

And this is my Receiver code:
#include &lt;SPI.h&gt;
#include &lt;nRF24L01.h&gt;
#include &lt;RF24.h&gt;
RF24 radio(7, 8); // CE, CSN
const byte address[6] = &quot;00001&quot;;
void setup() {
  Serial.begin(9600);
  radio.begin();
  radio.openReadingPipe(0, address);
  radio.setPALevel(RF24_PA_MIN);
  radio.startListening();
}
void loop() {
  if (radio.available()) {
    char text[32] = &quot;&quot;;
    radio.read(&amp;text, sizeof(text));
    Serial.println(text);
  }
}
I had the same problem and when I tried the isChipConnected () function, it told me that one of the nrf24l01 was not connected to the SPI and I assumed that one was bad. I bought 2 nrf24l01 with antenas and they work well (mostly). ( Here is the link to the library reference. Also, make sure you are using the TMRh20 version of the library, This one. This is more updated and better as far as I'm aware.
Like everyone would suggest, try to solder a 10uF capacitor between GND and VCC (that module requires more power sometimes). And the last thing I tried was to use one of this socket adaptors for the 2 modules here to use the 5v output from the arduino since it can deliver more mA and thus the module can work better.
This guide help me a little bit, I'll drop it here
I don't see anything wrong in the code, but I'm a newbie like you so (It seems we are using the same adress in our codes)