Circuit Documentation

Summary

This document provides a detailed overview of a circuit that includes an Arduino Mega 2560 microcontroller, an L298N DC motor driver, two DC motors, an MPU6050 accelerometer and gyroscope, an HC-05 Bluetooth module, and a 3S LIPO battery. The circuit is designed to control the DC motors based on sensor inputs and Bluetooth commands.

Component List

1. Arduino Mega 2560

   • Description: A microcontroller board based on the ATmega2560.
   • Pins: IOREF, RESET, 3V3, 5V, GND, VIN, A0-A15, D0-D53, AREF, SDA, SCL

2. L298N DC Motor Driver

   • Description: A dual H-bridge motor driver that allows control of two 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

3. DC Motor (2 units)

   • Description: Standard DC motors.
   • Pins: pin 1, pin 2

4. MPU6050 Accelerometer + Gyroscope

   • Description: A sensor module that combines a 3-axis gyroscope and a 3-axis accelerometer.
   • Pins: INT, AD0, XCL, XDA, SDA, SCL, GND, VCC

5. 3S LIPO Battery

   • Description: A rechargeable lithium polymer battery.
   • Pins: -VE, +VE

6. HC-05 Bluetooth Module

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

Wiring Details

Arduino Mega 2560

• 3V3 connected to VCC of MPU6050 Accelerometer + Gyroscope
• 5V connected to VCC of HC-05 Bluetooth Module
• GND connected to GND of MPU6050 Accelerometer + Gyroscope
• GND connected to GND of L298N DC Motor Driver
• GND connected to GND of HC-05 Bluetooth Module
• VIN connected to 5V of L298N DC Motor Driver
• A4 connected to SDA of MPU6050 Accelerometer + Gyroscope
• A5 connected to SCL of MPU6050 Accelerometer + Gyroscope
• D0 RX0 connected to TXD of HC-05 Bluetooth Module
• D1 TX0 connected to RXD of HC-05 Bluetooth Module
• D2 PWM connected to INT of MPU6050 Accelerometer + Gyroscope
• D5 PWM connected to ENA of L298N DC Motor Driver
• D6 PWM connected to IN1 of L298N DC Motor Driver
• D7 PWM connected to IN2 of L298N DC Motor Driver
• D8 PWM connected to IN4 of L298N DC Motor Driver
• D9 PWM connected to IN3 of L298N DC Motor Driver
• D10 PWM connected to ENB of L298N DC Motor Driver

L298N DC Motor Driver

• GND connected to -VE of 3S LIPO Battery
• 5V connected to VIN of Arduino Mega 2560
• OUT1 connected to pin 2 of DC Motor 1
• OUT2 connected to pin 1 of DC Motor 1
• OUT3 connected to pin 2 of DC Motor 2
• OUT4 connected to pin 1 of DC Motor 2
• 12V connected to +VE of 3S LIPO Battery

DC Motor 1

• pin 1 connected to OUT2 of L298N DC Motor Driver
• pin 2 connected to OUT1 of L298N DC Motor Driver

DC Motor 2

• pin 1 connected to OUT4 of L298N DC Motor Driver
• pin 2 connected to OUT3 of L298N DC Motor Driver

MPU6050 Accelerometer + Gyroscope

• VCC connected to 3V3 of Arduino Mega 2560
• GND connected to GND of Arduino Mega 2560
• SDA connected to A4 of Arduino Mega 2560
• SCL connected to A5 of Arduino Mega 2560
• INT connected to D2 PWM of Arduino Mega 2560

3S LIPO Battery

• -VE connected to GND of L298N DC Motor Driver
• +VE connected to 12V of L298N DC Motor Driver

HC-05 Bluetooth Module

• VCC connected to 5V of Arduino Mega 2560
• TXD connected to D0 RX0 of Arduino Mega 2560
• RXD connected to D1 TX0 of Arduino Mega 2560
• GND connected to GND of Arduino Mega 2560

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)