Robot RC Nirkabel/wireless nRF24L01 arduino

Pada pembuatan Robot RC Nirkabel/wireless nRF24L01 membutuhkan  2 arduino , salah satunya ada yang berperan sebagai transmiter dan ada yang sebagai receiver. Untuk mengirim dan menerima data dengan jarak 100 meter lebih  diruang terbuka kecepatan transfer data hanya terbatas pada 250 Kbps dengan menggunakan modul nRF24L01.
Apa saja alat yang dibutuhkan diantaranya adalah:
1. 2 buah arduino uno
2.  2 buah modul nRF24L01
3.  Driver motor dc  l293d
4. 2 buah motor dc gearbox + ban
5. Baterai 12v + holder

Program Arduino Transmitter 

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

int msg[1];
int datain;

int maju;
int mundur;
int kanan;
int kiri;

RF24 radio(9,10);

const uint64_t pipe = 0xE8E8F0F0E1LL;

void setup(void){

 Serial.begin(9600);
 radio.begin();
 radio.openWritingPipe(pipe);

 pinMode(13,OUTPUT);

 pinMode(7,INPUT);
 pinMode(6,INPUT);
 pinMode(5,INPUT);
 pinMode(4,INPUT);

 digitalWrite(7,HIGH);
 digitalWrite(6,HIGH);
 digitalWrite(5,HIGH);
 digitalWrite(4,HIGH);

 }

void loop(void){

maju = digitalRead(6);
mundur = digitalRead(4);
kiri = digitalRead(5);
kanan = digitalRead(7);

if(maju == 0){
 msg[0] = 1;
 radio.write(msg, 1);
 //Serial.println(msg[0]);
}
else if(mundur == 0){
 msg[0] = 4;
 radio.write(msg, 1);
 //Serial.println(msg[0]);
}
else if(kiri == 0){
 msg[0] = 3;
 radio.write(msg, 1);
 //Serial.println(msg[0]);
}
else if(kanan == 0){
 msg[0] = 2;
 radio.write(msg, 1);
 //Serial.println(msg[0]);
}
else{
 msg[0] = 5;
 radio.write(msg, 1);
 //Serial.println(msg[0]);
}


}

 Program Arduino Receiver / Slave 

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

int msg[1];

RF24 radio(9,10);

const uint64_t pipe = 0xE8E8F0F0E1LL;

//motor kiri
int mtr1 = 2;
int mtr2 = 3;

//motor kanan
int mtr3 = 4;
int mtr4 = 5;

void setup(void){

 Serial.begin(9600);
 radio.begin();
 radio.openReadingPipe(1,pipe);
 radio.startListening();
 pinMode(mtr1, OUTPUT);
 pinMode(mtr2, OUTPUT);
 pinMode(mtr3, OUTPUT);
 pinMode(mtr4, OUTPUT);

 }


 void loop(void){
 
 if (radio.available()){
   bool done = false; 
   while (!done){
     done = radio.read(msg, 1);   
     Serial.println(msg[0]);
  
     if (msg[0] == 1){  
     delay(10);
     digitalWrite(mtr1, HIGH);
     digitalWrite(mtr2, LOW);
     digitalWrite(mtr3, HIGH);
     digitalWrite(mtr4, LOW);
     //delay(200);
     }
     else if (msg[0] == 2){  
     delay(10);
     digitalWrite(mtr1, HIGH);
     digitalWrite(mtr2, LOW);
     digitalWrite(mtr3, LOW);
     digitalWrite(mtr4, LOW);
     //delay(200);
     }
     else if (msg[0] == 3){  
     delay(10);
     digitalWrite(mtr1, LOW);
     digitalWrite(mtr2, LOW);
     digitalWrite(mtr3, HIGH);
     digitalWrite(mtr4, LOW);
     //delay(200);
     }
     else if (msg[0] == 4){  
     delay(10);
     digitalWrite(mtr1, LOW);
     digitalWrite(mtr2, HIGH);
     digitalWrite(mtr3, LOW);
     digitalWrite(mtr4, HIGH);
     //delay(200);
     }
     else {  
     delay(10);
     digitalWrite(mtr1, LOW);
     digitalWrite(mtr2, LOW);
     digitalWrite(mtr3, LOW);
     digitalWrite(mtr4, LOW);
     //delay(200);
     }
     
     delay(10);
   }


 }
 else{
 Serial.println("No radio available");

 }
 }

Selamat mencoba, semoga berhasil....