nRF24L01 not communicating
Hello,
You need to set a channel to both NRF:

void setup() {
   delay(500);
   Serial.begin(9600);
   radio.begin();
   radio.setChannel(0x55); //set the channel
   radio.openWritingPipe(0xF0F0F0F0AA);
   radio.setPALevel(RF24_PA_MIN);
   radio.stopListening();
   radio.powerUp(); //Power up the radio
}


Change this.

void loop() {
    if (radio.available()) {
        radio.read(&amp;response, sizeof(response));
        done = true;
    }
    if (done) {
        Serial.println(response);
        done = false;
    }
    //done = false;
    delay(1000);
}