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Arduino UNO Controlled Dual DC Motor System with Wireless Relay

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Circuit Documentation

Summary

This circuit is designed to control two DC motors using an Arduino UNO, a 12V 4-channel wireless relay, and a motor driver controller. The motors can be controlled via a remote control with four buttons (A, B, C, D) to perform different actions such as moving both motors, stopping one motor, or stopping both motors.

Component List

  1. Arduino UNO

    • Description: A microcontroller board based on the ATmega328P.
    • Pins: UNUSED, IOREF, Reset, 3.3V, 5V, GND, Vin, A0, A1, A2, A3, A4, A5, SCL, SDA, AREF, D13, D12, D11, D10, D9, D8, D7, D6, D5, D4, D3, D2, D1, D0

  2. DC Motor

    • Description: A simple DC motor.
    • Pins: pin 1, pin 2

  3. Wireless Relay 12V 4Ch

    • Description: A 12V 4-channel wireless relay module.
    • Pins: NO 12, NC 7, COM 8, NO 9, NC 10, COM 11, NO 6, COM 5, NC 4, NO 3, COM 2, NC 1, +V, GND

  4. Resistor (10k Ohms)

    • Description: A resistor with a resistance of 10k Ohms.
    • Pins: pin1, pin2

  5. L298N Motor Driver Controller Board Module Stepper Motor

    • Description: A motor driver module for controlling stepper motors.
    • Pins: Output A, +12v Power, +5v Power, Ground, Output B, Input 4, Input 3, Input 2, Input 1

Wiring Details

Arduino UNO

DC Motor

Wireless Relay 12V 4Ch

Resistor (10k Ohms)

L298N Motor Driver Controller Board Module Stepper Motor

Code Documentation

/*
 * This Arduino sketch controls two DC motors using a 12V 4-channel wireless
 * relay and a remote control with four buttons (A, B, C, D). The behavior is
 * as follows:
 * - Button A: Both motors move.
 * - Button B: Only motor 1 moves, motor 2 stops.
 * - Button C: Only motor 2 moves, motor 1 stops.
 * - Button D: Both motors stop.
 */

// Pin definitions
const int motor1Pin1 = 5;
const int motor1Pin2 = 4;
const int motor2Pin1 = 3;
const int motor2Pin2 = 2;
const int relayPinA = A0;
const int relayPinB = A1;
const int relayPinC = A2;
const int relayPinD = A3;

void setup() {
  // Set motor pins as outputs
  pinMode(motor1Pin1, OUTPUT);
  pinMode(motor1Pin2, OUTPUT);
  pinMode(motor2Pin1, OUTPUT);
  pinMode(motor2Pin2, OUTPUT);
  // Set relay pins as inputs
  pinMode(relayPinA, INPUT);
  pinMode(relayPinB, INPUT);
  pinMode(relayPinC, INPUT);
  pinMode(relayPinD, INPUT);
}

void loop() {
  // Read relay states
  bool buttonA = digitalRead(relayPinA);
  bool buttonB = digitalRead(relayPinB);
  bool buttonC = digitalRead(relayPinC);
  bool buttonD = digitalRead(relayPinD);

  // Control motors based on button presses
  if (buttonA) {
    // Both motors move
    digitalWrite(motor1Pin1, HIGH);
    digitalWrite(motor1Pin2, LOW);
    digitalWrite(motor2Pin1, HIGH);
    digitalWrite(motor2Pin2, LOW);
  } else if (buttonB) {
    // Only motor 1 moves
    digitalWrite(motor1Pin1, HIGH);
    digitalWrite(motor1Pin2, LOW);
    digitalWrite(motor2Pin1, LOW);
    digitalWrite(motor2Pin2, LOW);
  } else if (buttonC) {
    // Only motor 2 moves
    digitalWrite(motor1Pin1, LOW);
    digitalWrite(motor1Pin2, LOW);
    digitalWrite(motor2Pin1, HIGH);
    digitalWrite(motor2Pin2, LOW);
  } else if (buttonD) {
    // Both motors stop
    digitalWrite(motor1Pin1, LOW);
    digitalWrite(motor1Pin2, LOW);
    digitalWrite(motor2Pin1, LOW);
    digitalWrite(motor2Pin2, LOW);
  }
}

This code sets up the Arduino to control two DC motors based on the input from a 12V 4-channel wireless relay. The motors are controlled by reading the state of the relay pins and setting the motor pins accordingly.