How to make 8 Channel Radio controller Using Arduino

Required Materials-

2X Arduino Nano 328P

2X Nrf24l01

4X JoyStick Module

2x 100uf/25V Capacitor

7.4 V Li-Po Battery

3.7V Li-Ion Battery

Brushless Motor & ESC

Procedure

First of all You need to make Remote Cases using 2-3mm Acrylic Sheet by following this Diagram

Making Circuit

Make a suitable circuit using Zero PCB by Following this Circuit Diagram

Circuit Correction

Warning- Must check your wiring connection using continuity mode of your Multi meter

Coding

You must have Arduino nano 328p to upload this code
Connect your Arduino to your PC or Lap Top through USB mini B Cable
Now open your Arduino(IDE) and select Board type, Select Processor, Select Com Port
Now Click Upload

You must need two Codes for doing this procedure

Transmitter Code

// 8 Channel Transmitter

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

const uint64_t pipeOut = 0xE9E8F0F0E1LL; //IMPORTANT: The same as in the receiver 0xE9E8F0F0E1LL
RF24 radio(7, 8); // select CE,CSN pin |

struct Signal {
byte throttle_a;
byte pitch_a;
byte roll_a;
byte yaw_a;
byte throttle_b;
byte pitch_b;
byte roll_b;
byte yaw_b;
};

Signal data;

void ResetData()
{
data.throttle_a = 127; // Motor Stop (254/2=127)(Signal lost position)
data.pitch_a = 127; // Center (Signal lost position)
data.roll_a = 127; // Center(Signal lost position)
data.yaw_a = 127; // Center (Signal lost position )
data.throttle_b = 127; // Center (Signal lost position )
data.pitch_b = 127; // Center (Signal lost position )
data.roll_b = 127; // Center (Signal lost position )
data.yaw_b = 127; // Center (Signal lost position )
}

void setup()
{
//Start everything up

radio.begin();
radio.openWritingPipe(pipeOut);
radio.stopListening(); //start the radio comunication for Transmitter
ResetData();
}

// Joystick center and its borders

int mapJoystickValues(int val, int lower, int middle, int upper, bool reverse)
{
val = constrain(val, lower, upper);
if ( val < middle )
val = map(val, lower, middle, 0, 128);
else
val = map(val, middle, upper, 128, 255);
return ( reverse ? 255 - val : val );
}

void loop()
{
// Control Stick Calibration
// Setting may be required for the correct values of the control levers.

data.throttle_a = mapJoystickValues( analogRead(A0), 524, 524, 1015, false );
data.roll_a = mapJoystickValues( analogRead(A1), 12, 524, 1020, true ); // "true" or "false" for servo direction
data.pitch_a = mapJoystickValues( analogRead(A2), 12, 524, 1020, true ); // "true" or "false" for servo direction
data.yaw_a = mapJoystickValues( analogRead(A3), 12, 524, 1020, true ); // "true" or "false" for servo direction
data.throttle_b = mapJoystickValues( analogRead(A4), 12, 524, 1020, true ); // "true" or "false" for servo direction
data.roll_b = mapJoystickValues( analogRead(A5), 12, 524, 1020, true ); // "true" or "false" for servo direction
data.pitch_b = mapJoystickValues( analogRead(A6), 12, 524, 1020, true ); // "true" or "false" for servo direction
data.yaw_b = mapJoystickValues( analogRead(A7), 12, 524, 1020, true ); // "true" or "false" for servo direction

radio.write(&data, sizeof(Signal));
}

Receiver Code

// 8 Channel Receiver

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

int ch_width_1 = 0;
int ch_width_2 = 0;
int ch_width_3 = 0;
int ch_width_4 = 0;
int ch_width_5 = 0;
int ch_width_6 = 0;
int ch_width_7 = 0;
int ch_width_8 = 0;

Servo ch1;
Servo ch2;
Servo ch3;
Servo ch4;
Servo ch5;
Servo ch6;
Servo ch7;
Servo ch8;

struct Signal {
byte throttle_a;
byte pitch_a;
byte roll_a;
byte yaw_a;
byte throttle_b;
byte pitch_b;
byte roll_b;
byte yaw_b;
};

Signal data;

const uint64_t pipeIn = 0xE9E8F0F0E1LL;
RF24 radio(7, 8);

void ResetData()
{
// Define the inicial value of each data input.
// The middle position for Potenciometers. (254/2=127)
data.throttle_a = 127; // Motor Stop
data.pitch_a = 127; // Center
data.roll_a = 127; // Center
data.yaw_a = 127; // Center
data.throttle_b = 127; // Center
data.pitch_b = 127; // Center
data.roll_b = 127; // Center
data.yaw_b = 127; // Center
}

void setup()
{
//Set the pins for each PWM signal
ch1.attach(2);
ch2.attach(3);
ch3.attach(4);
ch4.attach(5);
ch5.attach(1);
ch6.attach(6);
ch7.attach(9);
ch8.attach(10);

//Configure the NRF24 module
ResetData();
radio.begin();
radio.openReadingPipe(1,pipeIn);

radio.startListening(); //start the radio comunication for receiver
}

unsigned long lastRecvTime = 0;

void recvData()
{
while ( radio.available() ) {
radio.read(&data, sizeof(Signal));
lastRecvTime = millis(); // receive the data
}
}

void loop()
{
recvData();
unsigned long now = millis();
if ( now - lastRecvTime > 1000 ) {
ResetData(); // Signal lost.. Reset data
}

ch_width_1 = map(data.throttle_a, 0, 255, 1000, 2000);
ch_width_2 = map(data.pitch_a, 0, 255, 1000, 2000);
ch_width_3 = map(data.roll_a, 0, 255, 1000, 2000);
ch_width_4 = map(data.yaw_a, 0, 255, 1000, 2000);
ch_width_5 = map(data.throttle_b, 0, 255, 1000, 2000);
ch_width_6 = map(data.pitch_b, 0, 255, 1000, 2000);
ch_width_7 = map(data.roll_b, 0, 255, 1000, 2000);
ch_width_8 = map(data.yaw_b, 0, 255, 1000, 2000);

// Write the PWM signal
ch1.writeMicroseconds(ch_width_1);
ch2.writeMicroseconds(ch_width_2);
ch3.writeMicroseconds(ch_width_3);
ch4.writeMicroseconds(ch_width_4);
ch5.writeMicroseconds(ch_width_5);
ch6.writeMicroseconds(ch_width_6);
ch7.writeMicroseconds(ch_width_7);
ch8.writeMicroseconds(ch_width_8);
}

Now Give power to your board and Enjoy

Thank You So Much for Watching……