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How to make 8 channel Universal Remote Controller Using Arduino for Aeroplane, JCB, Helicopter, Transformer Car, RC Toy Car

How to make 8 Channel Radio controller Using Arduino

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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

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Procedure

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

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Making Circuit

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

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Circuit Correction

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

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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

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You must need two Codes for doing this procedure

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Transmitter Code

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// 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));
}

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Receiver Code

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// 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);
}

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Now Give power to your board and Enjoy

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Thank You So Much for Watching……

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