Circuit Documentation

Summary

This circuit is designed to control a set of motors using an Arduino Mega 2560 microcontroller, interfaced with an HC-05 Bluetooth module for wireless communication and an L298N DC motor driver to drive the motors. The circuit is powered by a 12V battery, and the motor driver module regulates the motor operations based on the signals from the Arduino.

Component List

HC-05 Bluetooth Module

• Description: A Bluetooth module for wireless communication.
• Pins: Key, VCC, TXD, RXD, State, GND

Motor and Wheels (x4)

• Description: Motors with attached wheels for movement.
• Pins: vcc, GND

Arduino Mega 2560

• Description: A microcontroller board based on the ATmega2560.
• Pins: IOREF, RESET, 3V3, 5V, GND, VIN, Analog Pins (A0-A15), Digital Pins (D0-D53), PWM Pins (D2-D13), Communication Pins (TX0/RX0, TX1/RX1, TX2/RX2, TX3/RX3, SCL, SDA), Power Pins (IOREF, RESET, 3V3, 5V, GND, VIN), SPI Pins (D50-D52), AREF

L298N DC Motor Driver

• Description: A module to drive DC motors.
• Pins: OUT1, OUT2, 12V, GND, 5V, OUT3, OUT4, 5V-ENA-JMP-I, 5V-ENA-JMP-O, +5V-J1, +5V-J2, ENA, IN1, IN2, IN3, IN4, ENB

Battery 12V

• Description: A 12V power source for the circuit.
• Pins: +, -

Comments

• Description: Comments are placeholders and do not have physical representations in the circuit.

Wiring Details

HC-05 Bluetooth Module

• VCC connected to Arduino Mega 2560 3V3
• GND connected to Arduino Mega 2560 GND
• TXD connected to Arduino Mega 2560 D18/TX1
• RXD connected to Arduino Mega 2560 D19/RX1

Arduino Mega 2560

• 5V connected to L298N DC motor driver 5V
• GND connected to L298N DC motor driver GND and Battery 12V -
• D5 PWM connected to L298N DC motor driver ENB
• D6 PWM connected to L298N DC motor driver ENA
• D8 PWM connected to L298N DC motor driver IN1
• D9 PWM connected to L298N DC motor driver IN2
• D10 PWM connected to L298N DC motor driver IN3
• D11 PWM connected to L298N DC motor driver IN4

L298N DC Motor Driver

• 12V connected to Battery 12V +
• OUT1 connected to Motor and Wheels (Instance 1) GND and Motor and Wheels (Instance 2) vcc
• OUT2 connected to Motor and Wheels (Instance 1) vcc and Motor and Wheels (Instance 2) GND
• OUT3 connected to Motor and Wheels (Instance 3) vcc and Motor and Wheels (Instance 4) GND
• OUT4 connected to Motor and Wheels (Instance 3) GND and Motor and Wheels (Instance 4) vcc

Motors and Wheels

• Each motor has one pin connected to a corresponding OUT pin on the L298N and the other to GND.

Documented Code

Arduino Mega 2560 Code (sketch.ino)

void setup() {
  // put your setup code here, to run once:

}

void loop() {
  // put your main code here, to run repeatedly:

}

Additional Documentation (documentation.txt)

No additional documentation provided.