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Arduino & NRF24L01 Wireless Remote Control

Introduction

NRF24L01 wireless module, a modüldür.nrf24l01 the desteklemektedir.fiyat the SPI interface for making low-power wireless communication in the 2.4 GHz frequency is also quite cheap, this product can be obtained from the market in Turkey maker robotistan.co address.

Features

  • Supply voltage from 1.9 to 3.6
  • Low power consumption
  • Worldwide 2.4GHz license-free ISM band operation
  • 250m communication distance in open field
  • Dimensions: 15 × 29 mm
  • Receiver sensitivity is <90dB
  • The transmitter signal strength: + 7dB

Scope of application

  • Home and commercial automation
  • Toys & Games
  • Hobby electronics
  • Advanced media centers in remote control
  • Mouse, keyboard
  • Game consoles

Study Application

Enable basically two LEDs wirelessly control with two buttons . application basis if they can control the motor with the button, you improve your home’s lights or control spy robot applications up to you.

Used materials

  • 2 Arduino
  • 2 NRF24L01
  • 2 LEDs
  • 2 button
  • 2 10k resistor
  • Jumper cables are used for connections
  • 2 small bread board

NRF24L01 Connection with Arduino

NRF24L01 Arduino & NRF24L01 Wireless Remote Control

Arduino NRF24L01

  • No. 9 pin -> CE
  • No. 10 pin -> CSR
  • No. 11 pin -> MOI
  • No. 12 pin -> MISO
  • No. 13 pin -> SCK
  • 3.3 Volt -> Vcc
  • GND -> GND

fix Arduino & NRF24L01 Wireless Remote ControlButton binding logic as in this way button will be connected to the Arduino No. 6 pins.

LEDs in this way will be connected to the Arduino  Led No. 3 pins.

Arduino code

Buyers Codes

#include<SPI.h>
#include"nRF24L01.h"
#include"RF24.h"
int msg[1];
RF24 radio(9,10);
constuint64_t pipe = 0xE8E8F0F0E1LL;
int LED1 = 3;
int LED2 = 5;
void setup(void){
Serial.begin(9600);
radio.begin();
radio.openReadingPipe(1,pipe);
radio.startListening();
pinMode(LED1, OUTPUT);
pinMode(LED2, OUTPUT);}
void loop(void){
if(radio.available()){
bool done = false;
while(!done){
done = radio.read(msg, 1);
Serial.println(msg[0]);
if(msg[0] == 111){delay(10);digitalWrite(LED1, HIGH);}
elseif(msg[0] == 112) {digitalWrite(LED1, LOW);}
elseif(msg[0] == 113) {delay(10);digitalWrite(LED2,HIGH);}
else{digitalWrite(LED2, LOW);}
delay(10);}}
else{Serial.println("boş");}}

Transmitter Codes

#include <SPI.h>
#include "nRF24L01.h"
#include "RF24.h"
int msg[1];
RF24 radio(9,10);
const uint64_t pipe = 0xE8E8F0F0E1LL;
int SW1 = 7;
int SW2 = 6;
void setup(void){
Serial.begin(9600);
radio.begin();
radio.openWritingPipe(pipe);}
void loop(void){
if (digitalRead(SW1) == HIGH){
msg[0] = 111;
radio.write(msg, 1);}
if (digitalRead(SW1) == LOW){
msg[0] = 112;
radio.write(msg, 1);}
if (digitalRead(SW2) == HIGH){
msg[0] = 113;
radio.write(msg, 1);}
if (digitalRead(SW2) == LOW){
msg[0] = 114;
radio.write(msg, 1);}}

 

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