NRF24L01 configuration

[gilshultz]

@UwUsername69

could I use that instead?

Probably if the voltage is OK! Post a link to it.

[horace]

I used the Leonardo pinout to connect The Things UNO (which is based on the Leonardo) to a NRF24L01 module - code to transmit text is

//  Leonardo > NRF24L01 transmitter test using a text string

// RP2040 connections
// RP2040 SPIO_SCK pin GP18 goes to NRF24L10_pin SCK
// RP2040 SPIO_RX pin GP16 goes to NRF24L10_pin MISO
// RP2040 SPIO_TX pin GP19 goes to NRF24L10_pin MOSI
// RP2040 pin SPIO_CSn GP17 to NRF24L10 CSN
// RP2040 pin GP20 to NRF24L10 CE
// RP2040 GND and 3.3V to NRF24L10  GND and VCC

// Leonardo connections 
// Leonardo ICSP SCK  pin 15 to NRF24L10_pin SCK
// Leonardo ICSP MISO pin 14 to NRF24L10_pin MISO
// Leonardo ICSP MOSI pin 16 to NRF24L10_pin MOSI
// Leonardo pin 10 to NRF24L10 CSN
// Leonardo pin 9  to NRF24L10 CE
// Leonardo GND and 3.3V to NRF24L10  GND and VCC

#include <SPI.h>
#include "RF24.h"

#define CE_PIN 9
#define CSN_PIN 10

bool radioNumber = 0;
RF24 radio(CE_PIN, CSN_PIN);

byte addresses[][6] = { "1Node", "2Node" };

void setup() {
  Serial.begin(115200);
  delay(2000);
  Serial.println("\n\nLeonardo > NRF24L01 transmit text");
  radio.begin();
  if (radio.isChipConnected())
    Serial.println("Transmitter NF24 connected to SPI");
  else Serial.println("NF24 is NOT connected to SPI");
  radio.setChannel(125);
  radio.setPALevel(RF24_PA_MIN);
  radio.powerUp();
  radio.setDataRate(RF24_1MBPS);
  //radio.setDataRate(RF24_250KBPS);
  if (radioNumber) {
    radio.openWritingPipe(addresses[1]);
    radio.openReadingPipe(1, addresses[0]);
  } else {
    radio.openWritingPipe(addresses[0]);
    radio.openReadingPipe(1, addresses[1]);
  }
  radio.stopListening();
  //radio.setPayloadSize(sizeof(Struct1));
}

// loop transmiting data packet
void loop() {
  static char testString[10] = "text 0";
  radio.write(testString, sizeof(testString));
  Serial.print("transmit ");
  Serial.println(testString);
  delay(1000);
  testString[5]++;
}

serial output

Leonardo > NRF24L01 transmit text
Transmitter NF24 connected to SPI
transmit text 0
transmit text 1
transmit text 2
transmit text 3
transmit text 4
transmit text 5

receiver (running on a Nano)

Nano > NRF24L01 Receive text
Receiver NF24 connected to SPI
Test string:      text 1
Test string:      text 3
Test string:      text 4
Test string:      text 5
Test string:      text 6
Test string:      text 7