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/* Tranmsitter code for the Arduino Radio control with PWM output

* Install the NRF24 library to your IDE

* Upload this code to the Arduino UNO, NANO, Pro mini (5V,16MHz)

* Connect a NRF24 module to it:



Module // Arduino UNO,NANO



GND -> GND

Vcc -> 3.3V

CE -> D9

CSN -> D10

CLK -> D13

MOSI -> D11

MISO -> D12



This code transmits 7 channels with data from pins A0, A1, A2, A3, D2 and D3



*/



#include <SPI.h>

#include <nRF24L01.h>

#include <RF24.h>



const uint64_t my_radio_pipe = 0xE8E8F0F0E1LL; //Remember that this code should be the same for the receiver



RF24 radio(9, 10); //Set CE and CSN pins



// The sizeof this struct should not exceed 32 bytes

struct Data_to_be_sent {

byte ch1;

byte ch2;

byte ch3;

byte ch4;

byte ch5;

byte ch6;

byte ch7;

};



//Create a variable with the structure above and name it sent_data

Data_to_be_sent sent_data;







void setup()

{

radio.begin();

radio.setAutoAck(false);

radio.setDataRate(RF24_250KBPS);

radio.openWritingPipe(my_radio_pipe);



//Reset each channel value

sent_data.ch1 = 0;

sent_data.ch2 = 127;

sent_data.ch3 = 127;

sent_data.ch4 = 127;

sent_data.ch5 = 0;

sent_data.ch6 = 0;

sent_data.ch7 = 127;

}



/**************************************************/





void loop()

{

/*If your channel is reversed, just swap 0 to 255 by 255 to 0 below

EXAMPLE:

Normal: data.ch1 = map( analogRead(A0), 0, 1024, 0, 255);

Reversed: data.ch1 = map( analogRead(A0), 0, 1024, 255, 0); */



sent_data.ch1 = map( analogRead(A0), 0, 1024, 255, 0);

sent_data.ch2 = map( analogRead(A1), 0, 1024, 0, 255);

sent_data.ch3 = map( analogRead(A2), 0, 1024, 0, 255);

sent_data.ch4 = map( analogRead(A3), 0, 1024, 0, 255);

sent_data.ch5 = digitalRead(2);

sent_data.ch6 = digitalRead(3);

sent_data.ch7 = map( analogRead(A4), 0, 1024, 0, 255);



radio.write(&sent_data, sizeof(Data_to_be_sent));

}

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كود المستقبل

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/* Receiver code for the Arduino Radio control with PWM output

* Install the NRF24 library to your IDE

* Upload this code to the Arduino UNO, NANO, Pro mini (5V,16MHz)

* Connect a NRF24 module to it:



Module // Arduino UNO,NANO



GND -> GND

Vcc -> 3.3V

CE -> D9

CSN -> D10

CLK -> D13

MOSI -> D11

MISO -> D12



This code receive 7 channels and create a PWM output for each one on D2, D3, D4, D5, D6, D7and D8



*/





#include <SPI.h>

#include <nRF24L01.h>

#include <RF24.h>

#include <Servo.h> //To create PWM signals we need this lybrary



const uint64_t pipeIn = 0xE8E8F0F0E1LL; //Remember that this code is the same as in the transmitter

RF24 radio(9, 10); //CSN and CE pins



// The sizeof this struct should not exceed 32 bytes

struct Received_data {

byte ch1;

byte ch2;

byte ch3;

byte ch4;

byte ch5;

byte ch6;

byte ch7;

};



Received_data received_data;



Servo channel_1;

Servo channel_2;

Servo channel_3;

Servo channel_4;

Servo channel_5;

Servo channel_6;

Servo channel_7;



int ch1_value = 0;

int ch2_value = 0;

int ch3_value = 0;

int ch4_value = 0;

int ch5_value = 0;

int ch6_value = 0;

int ch7_value = 0;



void reset_the_Data()

{

// 'safe' values to use when NO radio input is detected

received_data.ch1 = 0; //Throttle (channel 1) to 0

received_data.ch2 = 127;

received_data.ch3 = 127;

received_data.ch4 = 127;

received_data.ch5 = 0;

received_data.ch6 = 0;

received_data.ch7 = 127;

}







/**************************************************/



void setup()

{

//Attach the servo signal on pins from D2 to D8

channel_1.attach(3);

channel_2.attach(8);

channel_3.attach(4);

channel_4.attach(5);

channel_5.attach(6);

channel_6.attach(7);

channel_7.attach(2);



//We reset the received values

reset_the_Data();



//Once again, begin and radio configuration

radio.begin();

radio.setAutoAck(false);

radio.setDataRate(RF24_250KBPS);

radio.openReadingPipe(1,pipeIn);



//We start the radio comunication

radio.startListening();



}



/**************************************************/



unsigned long lastRecvTime = 0;



//We create the function that will read the data each certain time

void receive_the_data()

{

while ( radio.available() ) {

radio.read(&received_data, sizeof(Received_data));

lastRecvTime = millis(); //Here we receive the data

}

}



/**************************************************/



void loop()

{

//Receive the radio data

receive_the_data();



//////////This small if will reset the data if signal is lost for 1 sec.

/////////////////////////////////////////////////////////////////////////

unsigned long now = millis();

if ( now - lastRecvTime > 1000 ) {

// signal lost?

reset_the_Data();

//Go up and change the initial values if you want depending on

//your aplications. Put 0 for throttle in case of drones so it won't

//fly away

}





ch1_value = map(received_data.ch1,0,255,1000,2000);

ch2_value = map(received_data.ch2,0,255,1000,2000);

ch3_value = map(received_data.ch3,0,255,1000,2000);

ch4_value = map(received_data.ch4,0,255,1000,2000);

ch5_value = map(received_data.ch5,0,1,1000,2000);

ch6_value = map(received_data.ch6,0,1,1000,2000);

ch7_value = map(received_data.ch7,0,255,1000,2000);



//Creathe the PWM signals

channel_1.writeMicroseconds(ch1_value);

channel_2.writeMicroseconds(ch2_value);

channel_3.writeMicroseconds(ch3_value);

channel_4.writeMicroseconds(ch4_value);

channel_5.writeMicroseconds(ch5_value);

channel_6.writeMicroseconds(ch6_value);

channel_7.writeMicroseconds(ch7_value);





}//Loop end