I'm trying to make a remote control robot controlled by a joystick, with the transmitting Uno and receiving Mega board linked by by NRF24L01 modules. I've attached my wiring diagrams and the code for my transmitter and receiver, respectively, down below. The problem is that the RX light on the receiving Mega board is not lit, and the motors attached to the motor driver don't move. Nothing appears on the receiving serial monitor. The TX light on the transmitting Uno is lit, and the X and Y values of the joystick appear in the monitor.
#include <SPI.h>
#include "RF24.h"
RF24 myRadio (7, 8);
byte addresses[][6] = {"0"};
struct package
{
int X=1;
int Y=1;
};
typedef struct package Package;
Package data;
void setup()
{
Serial.begin(115200);
delay(100);
myRadio.begin();
myRadio.setChannel(115);
myRadio.setPALevel(RF24_PA_MIN);
myRadio.setDataRate( RF24_250KBPS ) ;
myRadio.openWritingPipe( addresses[0]);
delay(100);
}
void loop()
{
myRadio.write(&data, sizeof(data));
Serial.print("X:");
Serial.print(data.X);
Serial.print(" Y");
Serial.println(data.Y);
data.X = analogRead(A0);
data.Y = analogRead(A1);
delay(100);
}
#include <SPI.h>
#include "RF24.h"
RF24 myRadio (7, 8);
struct package
{
int X=512;
int Y=512;
};
byte addresses[][6] = {"0"};
int OUT1 = 5;
int OUT2 = 6;
int OUT3 = 9;
int OUT4 = 10;
typedef struct package Package;
Package data;
void setup()
{
Serial.begin(115200);
delay(1000);
myRadio.begin();
myRadio.setChannel(115);
myRadio.setPALevel(RF24_PA_MAX);
myRadio.setDataRate( RF24_250KBPS ) ;
myRadio.openReadingPipe(1, addresses[0]);
myRadio.startListening();
pinMode(OUT1, OUTPUT);
pinMode(OUT2, OUTPUT);
pinMode(OUT3, OUTPUT);
pinMode(OUT4, OUTPUT);
analogWrite(OUT1, 0);
analogWrite(OUT2, 0);
analogWrite(OUT3, 0);
analogWrite(OUT4, 0);
}
void loop()
{
if ( myRadio.available())
{
while (myRadio.available())
{
myRadio.read( &data, sizeof(data) );
}
Serial.print("X:");
Serial.print(data.X);
Serial.print(" Y");
Serial.println(data.Y);
int X = data.X;
int Y = data.Y;
int foward = map(X,524,1024,0,255);
int backward = map(X,500,0,0,255);
int right = map(Y,524,1024,0,255);
int left = map(Y,500,0,0,255);
if(X > 524 && Y < 524 && Y > 500){
analogWrite(OUT3, foward);
analogWrite(OUT4, 0);
analogWrite(OUT1, foward);
analogWrite(OUT2, 0);
}else if(X < 500 && Y < 524 && Y > 500){
analogWrite(OUT4, backward);
analogWrite(OUT3, 0);
analogWrite(OUT2, backward);
analogWrite(OUT1, 0);
}else if(X < 524 && X > 500 && Y < 524 && Y > 500){
analogWrite(OUT4, 0);
analogWrite(OUT3, 0);
analogWrite(OUT2, 0);
analogWrite(OUT1, 0);
}else if(X < 524 && X > 500 && Y > 524){
analogWrite(OUT4, 0);
analogWrite(OUT3, left);
analogWrite(OUT2, left);
analogWrite(OUT1, 0);
}else if(X < 524 && X > 500 && Y < 500){
analogWrite(OUT4, right);
analogWrite(OUT3, 0);
analogWrite(OUT2, 0);
analogWrite(OUT1, right);
}else if(X > 524 && Y > 524){
analogWrite(OUT3, foward);
analogWrite(OUT4, 0);
analogWrite(OUT1, foward-right);
analogWrite(OUT2, 0);
}else if(X > 524 && Y < 500){
analogWrite(OUT3, foward-left);
analogWrite(OUT4, 0);
analogWrite(OUT1, foward);
analogWrite(OUT2, 0);
}else if(X < 500 && Y > 524){
analogWrite(OUT4, backward);
analogWrite(OUT3, 0);
analogWrite(OUT2, backward-right);
analogWrite(OUT1, 0);
}else if(X < 500 && Y < 500){
analogWrite(OUT4, backward-left);
analogWrite(OUT3, 0);
analogWrite(OUT2, backward);
analogWrite(OUT1, 0);
}
}
}
