nRF24L01 module using Mirf library was working and then stopped

Question

I have two nRF24L01 modules, they are both attached to a sensor shield that has special ports for this type of module, on Arduino Unos.

Sensor shield, with nRF24LO1 in it

I have this code on the Arduino that is sending the signal:

#include <MirfHardwareSpiDriver.h>
#include <MirfSpiDriver.h>
#include <Mirf.h>
#include <nRF24L01.h>
#include <SPI.h>
#include <Wire.h>
//0 = stop, 1 = left, 2 = right, 3 = forward, 4 = backwards
long command;
long last_command;
long Joystick_1_X;
long Joystick_1_Y;
long Joystick_1;
void setup() {
 // put your setup code here, to run once:
 Mirf.spi = &MirfHardwareSpi; 
 Mirf.init(); 
 Mirf.setTADDR((byte *)"serv1");
 Mirf.payload = sizeof(long);
 Mirf.config(); 
 Serial.begin(115200);
}
void loop() {
 Joystick_1_X = analogRead(A0);
 Joystick_1_Y = analogRead(A1);
 if(Joystick_1_X < 450){
 command = 1;
 }else if(Joystick_1_X > 600){
 command = 2;
 }else if(Joystick_1_Y > 600){
 command = 3;
 }else if(Joystick_1_Y < 400){
 command = 4;
 }else{
 command = 0;
 }
 if(command == last_command){
 }else{
 Mirf.send((byte *)&command);
 last_command = command;
 }
 }

and this code on the Arduino that is receiving

#include "SPI.h"
#include "Mirf.h"
#include "nRF24L01.h"
#include "MirfHardwareSpiDriver.h"
int TN1= 3;
int TN2 = 4;
int ENA = 9;
int TN4 = 5;
int TN3 = 6;
int ENB = 10;
long data;
void setup() {
 pinMode(TN1, OUTPUT);
 pinMode(TN2, OUTPUT);
 pinMode(TN3, OUTPUT);
 pinMode(TN4, OUTPUT);
 pinMode(ENA, OUTPUT);
 pinMode(ENB, OUTPUT);
 Mirf.spi = &MirfHardwareSpi;
 Mirf.init();
 Mirf.setRADDR((byte *)"serv1");
 Mirf.payload = sizeof(long);
 Mirf.config();
 Serial.begin(115200);
 Serial.print("begin");
}
void loop() {
 // put your main code here, to run repeatedly:
 receiveCommand();
 if(data == 1){
 left();
 }else if(data == 2){
 right();
 }else if(data == 3){
 forward();
 }else if(data == 4){
 backwards();
 }else if(data == 0){
 stop_rover();
 }
}
void receiveCommand(){
 if(!Mirf.isSending() && Mirf.dataReady()){
 Mirf.getData((byte *)&data);
 Mirf.rxFifoEmpty();
 Serial.print(data);
 }else{
 Serial.println("No data to be recieved");
 }
}
void forward(){
 digitalWrite(ENB, HIGH);
 digitalWrite(ENA, HIGH);
 digitalWrite(TN4, HIGH);
 digitalWrite(TN3, LOW);
 digitalWrite(TN1, HIGH);
 digitalWrite(TN2, LOW);
}
void backwards(){
 digitalWrite(ENB, HIGH);
 digitalWrite(ENA, HIGH);
 digitalWrite(TN4, LOW);
 digitalWrite(TN3, HIGH);
 digitalWrite(TN1, LOW);
 digitalWrite(TN2, HIGH);
}
void left(){
 digitalWrite(ENA, HIGH);
 digitalWrite(TN1, HIGH);
 digitalWrite(TN2, LOW);
}
void right(){
 digitalWrite(ENB, HIGH);
 digitalWrite(TN4, HIGH);
 digitalWrite(TN3, LOW);
}
void stop_rover(){
 digitalWrite(ENB, LOW);
 digitalWrite(ENA, LOW);
 digitalWrite(TN4, LOW);
 digitalWrite(TN3, LOW);
 digitalWrite(TN1, LOW);
 digitalWrite(TN2, LOW);
}

This was working, and the rover did spin its wheels when the remote broadcasted a signal, but then it just stopped. The sensor shield says that they are plugged into the 3V port, I tried using the RF24 library and that did not work either.

Any help would be greatly appreciated.

• Avamander: Could you please try the builtin self test checks that come with RF24 library maintained by TMRh20? Do they all work properly?
• Richard Beattie: I uploaded the GettingStarted.ino file to two Arduinos the trasmitting node printed out this Now sending Sent 18204112, Got response 0, Round-trip delay 18204112 microseconds Now sending Sent 28434792, Got response 0, Round-trip delay 28434792 microseconds and the receiving node printed out this Sent response 251854848 Sent response 0
• Avamander: Something is wrong. Check your wiring and if you can, solder electrolytic caps to the GND and 3.3V pins of the radio module.
• Richard Beattie: There is no wiring the nRF24L01 is plugged into a sensor which is on the arduino, I put a picture of the sensor shield with the nRF24L01 above.
• Avamander: Are the defined pins in the sketch right? Could you please solder a cap to the power pins of the radio module?

Answer 1

Using the MIRF Library that I got from here, and then using this code to send

 Mirf.send((byte *)&command);
 while(Mirf.isSending()){
 }

and this code to receive

 if(!Mirf.isSending() && Mirf.dataReady()){
 Mirf.getData((byte *)&data);
 Mirf.rxFifoEmpty();
else(){
}

I was able to get it to work