1

I was trying to use two Arduino Nano connected to two RF24 modules to build a remote control boat. I self-assembled both the remote and the receiver circuit following the skematic suggested in that page (NRF24 and Arduino Nano Every usage).

VCC - 5V (via adapter)

GND - GND

10 pin - CE

A3 - CSN

11 pin - MOSI

12 pin - MISO

13 pin - SCK

not connected - IRQ

(I double and triple checked that I connected all the cables as in the skematic)

Then, as always suggested in the link above, I checked my connection using that sketch:

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

RF24 radio(10,A3); // for arduino nano every //RF24 radio(9,10); // for arduino uno

const uint8_t num_channels = 128; uint8_t values[num_channels]; void setup(void) { Serial.begin(9600); printf_begin(); radio.begin(); radio.setAutoAck(false); radio.startListening();

radio.printDetails(); delay(5000);

radio.stopListening(); int i = 0; while ( i < num_channels ) { printf("%x",i>>4); ++i; } printf("\n\r"); i = 0; while ( i < num_channels ) { printf("%x",i&0xf); ++i; } printf("\n\r"); } const int num_reps = 100;

void loop(void) { memset(values,0,sizeof(values)); int rep_counter = num_reps; while (rep_counter--) { int i = num_channels; while (i--) { radio.setChannel(i); radio.startListening(); delayMicroseconds(128); radio.stopListening(); if ( radio.testCarrier() ) ++values[i]; } } int i = 0; while ( i < num_channels ) { printf("%x",min(0xf,values[i]&0xf)); ++i; } printf("\n\r"); } int serial_putc( char c, FILE * ) { Serial.write( c ); return c; }

void printf_begin(void) { fdevopen( &serial_putc, 0 ); }

And that's what I found for the RX:

STATUS       = 0xff RX_DR=1 TX_DS=1 MAX_RT=1 RX_P_NO=7 TX_FULL=1
RX_ADDR_P0-1     = 0xffffffffff 0xffffffffff
RX_ADDR_P2-5     = 0xff 0xff 0xff 0xff
TX_ADDR      = 0xffffffffff
RX_PW_P0-6   = 0xff 0xff 0xff 0xff 0xff 0xff
EN_AA        = 0xff
EN_RXADDR    = 0xff
RF_CH        = 0xff
RF_SETUP     = 0xff
CONFIG       = 0xff
DYNPD/FEATURE    = 0xff 0xff
Data Rate    = 1MBPS
Model        = nRF24L01
CRC Length   = 16 bits
PA Power     = PA_MAX
00000000000000001111111111111111222222222222222233333333333333334444444444444444555555555555555566666666666666667777777777777777

0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef

So that means the RF24 module isn't connected properly to the board, the correct output in the second line would be something like that: RX_ADDR_P0-1 = 0xf0f0f0f0d2 0xc2c2c2c2c2

I used a tester to check the power supply and the antenna receives 3.3V as it should. I checked also the soldering and I didn't find any poor connections nor short circuits. I tried all the analog pins between the A0 and A5 for the CSN for perhaps the A3 was not working.

Well, now I ran out of ideas and I'm tempted to think that my radio module is broken, but maybe I overlooked something, can you please write any ideas that you think could help? Thankyou in advance

0 Answers0