How to make rc car using drone transmitter and reciver.

Hello guys, In this post we learn How to make rc car using drone transmitter and reciver like flysky and any  pwm transmitter and reciver 

Let start it :-

*Parts list

1.transmitter and reciver

2.L298N motor driver module

3.gear motor with wheel

4.12v Battery

5.Ardunio nano/uno

6.5mm 3v led

7.bodyframe

*Schematics and diagram

               

-do all the connection according to this diagram

*Coding

-Copy The following code in ardunio ide

/*********
  -Tech Gyan Creative
  Complete project details at https://techgyancreative.blogspot.com/2021/08/nodemcu-webserver.html
  The above copyright notice and this permission notice shall be included in all
  copies or substantial portions of the Software.
*********/

// Import required libraries
int enA = 5;
int in1 = 2;
int in2 = 3;
//M2
int enB = 6;
int in3 = 7;
int in4 = 8;

int receiver_pins[] = {A0, A1, A2, A3, A4, A5};
int receiver_values[] = {0, 0, 0, 0, 0, 0};
int res_min = 1100;
int res_max = 1900;

int working_range = 255;// motor driver range

boolean prt = true;

int mode = 0;
//-1 - transmeter not connected or out of range
//0- trans connected and ready
//1 - low speed
//2 = high speed mode

void setup() {
  pinMode(11, OUTPUT);
  pinMode(12, OUTPUT);
  pinMode(13, OUTPUT);

  pinMode(enA, OUTPUT);
  pinMode(enB,  OUTPUT);
  pinMode(in1, OUTPUT);
  pinMode(in2, OUTPUT);
  pinMode(in3, OUTPUT);
  pinMode(in4, OUTPUT);

  Serial.begin(115200);
  //Staring delay with LED
  setLED(1);
  delay(300);
  setLED(1);
  delay(300);
  setLED(2);
  delay(300);
  setLED(3);
  delay(300);
  setLED(0);


}

void loop() {
  receive();
  setModeLED();

  int m1 = 0;
  int m2 = 0;

  int rot = receiver_values[0];

  if (mode == 1) {
    m1 = receiver_values[1] / 2 + (rot );
    m2 = receiver_values[1] / 2 - (rot );

  } else if (mode == 2) {

    m1 = receiver_values[1] + rot / 2;
    m2 = receiver_values[1] - rot / 2
         ;
  }

  mpower(1,  m1);
  mpower(2,  m2);
}
int rp = 0;
void receive() {

  receiver_values[rp] = map(pulseIn (receiver_pins[rp], HIGH), res_min, res_max, -1 * working_range, working_range);
  rp++;
  if (rp == 6) {
    rp = 0;
  }
  boolean activevalues = true;
  for (int i = 0; i < 6; i++) {
    if (prt) {
      Serial.print("CH");
      Serial.print(i);
      Serial.print(" : ");
      Serial.print(receiver_values[i]);
      Serial.print(",\t");
    }
    if (receiver_values[i] < -500) {
      activevalues = false;
    }
  }
  mode = 0;
  if (!activevalues) {
    mode = -1;
  } else if (receiver_values[4] > -100) {
    mode = 2;
  } else if (receiver_values[5] > -100) {
    mode = 1;
  }
  if (prt) {
    Serial.println("");
  }

}

void setModeLED() {
  if (mode == -1) {
    setLED(-0);
  } else if (mode == 0) {
    setLED(1);
  } else if (mode == 1) {
    setLED(2);
  } else if (mode == 2) {
    setLED(3);
  }
}
void setLED(int led) {
  for (int i = 1; i < 4; i++) {
    if (led == i) {
      digitalWrite(10 + i, LOW);
    } else {
      digitalWrite(10 + i, HIGH);
    }
  }
}
void mpower(int motor,  int spd) {
  int rotation = 0;
  if (spd > 0) {
    rotation = 1;
  } else if (spd < 0) {
    rotation = -1;
    spd *= -1;
  }
  if (spd > 255) {
    spd = 255;
  }
  int pwm;
  int pA;
  int pB;
  if (motor == 1) {
    pwm = enA;
    pA = in1;
    pB = in2;
  } else if (motor == 2) {
    pwm = enB;
    pA = in3;
    pB = in4;
  } else {
    return;
  }

  if (rotation == 0) {
    digitalWrite(pA, LOW);
    digitalWrite(pB, LOW);
  } else if (rotation == 1) {
    digitalWrite(pA, HIGH);
    digitalWrite(pB, LOW);
  } else if (rotation == -1) {
    digitalWrite(pA, LOW);
    digitalWrite(pB, HIGH);
  }
  analogWrite(pwm, spd);

}

-choose your com port and board 

-upload the code