Circuit Documentation

Summary

This document provides a detailed overview of a circuit designed to control a robotic vehicle. The circuit includes gearmotors for movement, an L298N motor driver for motor control, an Arduino UNO for processing, a solar panel and charge controller for power management, a 12V battery for power storage, an HC-05 Bluetooth module for wireless communication, and an HC-SR04 ultrasonic sensor for obstacle detection.

Component List

1. Gearmotor DC Wheels left

   • Description: DC motor for left wheels
   • Pins: PIN1, PIN2

2. Gearmotor DC Wheels Right

   • Description: DC motor for right wheels
   • Pins: PIN1, PIN2

3. L298N DC motor driver

   • Description: Motor driver for controlling 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

4. Arduino UNO

   • Description: Microcontroller for processing and control
   • 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

5. Solar Panel

   • Description: Solar panel for power generation
   • Pins: gnd, vcc

6. Charge controller

   • Description: Charge controller for managing battery charging
   • Pins: GND, BAT, Vin

7. 12V 200Ah Battery

   • Description: Battery for power storage
   • Pins: GND, 12V

8. HC-05 Bluetooth Module

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

9. HC-SR04 Ultrasonic Sensor

   • Description: Ultrasonic sensor for obstacle detection
   • Pins: VCC, TRIG, ECHO, GND

Wiring Details

Gearmotor DC Wheels left

• PIN1 is connected to:

  • Gearmotor DC Wheels Right PIN2
  • L298N DC motor driver OUT2

• PIN2 is connected to:

  • Gearmotor DC Wheels Right PIN1
  • L298N DC motor driver OUT1

Gearmotor DC Wheels Right

• PIN1 is connected to:

  • Gearmotor DC Wheels left PIN2
  • L298N DC motor driver OUT1

• PIN2 is connected to:

  • Gearmotor DC Wheels left PIN1
  • L298N DC motor driver OUT2

L298N DC motor driver

• OUT1 is connected to:

  • Gearmotor DC Wheels Right PIN1
  • Gearmotor DC Wheels left PIN2

• OUT2 is connected to:

  • Gearmotor DC Wheels Right PIN2
  • Gearmotor DC Wheels left PIN1

• OUT3 is connected to:

  • Gearmotor DC Wheels Right PIN2
  • Gearmotor DC Wheels left PIN1

• OUT4 is connected to:

  • Gearmotor DC Wheels Right PIN1
  • Gearmotor DC Wheels left PIN2

• 12V is connected to:

  • 12V 200Ah Battery 12V
  • Charge controller BAT

• GND is connected to:

  • 12V 200Ah Battery GND
  • Charge controller GND

• 5V is connected to:

  • HC-SR04 Ultrasonic Sensor VCC
  • HC-05 Bluetooth Module VCC
  • Arduino UNO 5V

• ENA is connected to:

  • Arduino UNO D2

• IN1 is connected to:

  • Arduino UNO D7

• IN2 is connected to:

  • Arduino UNO D6

• IN3 is connected to:

  • Arduino UNO D5

• IN4 is connected to:

  • Arduino UNO D4

• ENB is connected to:

  • Arduino UNO D3

Arduino UNO

• 5V is connected to:

  • HC-SR04 Ultrasonic Sensor VCC
  • HC-05 Bluetooth Module VCC
  • L298N DC motor driver 5V

• D2 is connected to:

  • L298N DC motor driver ENA

• D7 is connected to:

  • L298N DC motor driver IN1

• D6 is connected to:

  • L298N DC motor driver IN2

• D5 is connected to:

  • L298N DC motor driver IN3

• D4 is connected to:

  • L298N DC motor driver IN4

• D3 is connected to:

  • L298N DC motor driver ENB

• GND is connected to:

  • HC-SR04 Ultrasonic Sensor GND
  • HC-05 Bluetooth Module GND

• D12 is connected to:

  • HC-SR04 Ultrasonic Sensor ECHO

• D11 is connected to:

  • HC-SR04 Ultrasonic Sensor TRIG

• D1 is connected to:

  • HC-05 Bluetooth Module RXD

• D0 is connected to:

  • HC-05 Bluetooth Module TXD

Solar Panel

• gnd is connected to:

  • Charge controller GND

• vcc is connected to:

  • Charge controller Vin

Charge controller

• GND is connected to:

  • 12V 200Ah Battery GND
  • L298N DC motor driver GND
  • Solar Panel gnd

• BAT is connected to:

  • 12V 200Ah Battery 12V
  • L298N DC motor driver 12V

• Vin is connected to:

  • Solar Panel vcc

12V 200Ah Battery

• 12V is connected to:

  • Charge controller BAT
  • L298N DC motor driver 12V

• GND is connected to:

  • Charge controller GND
  • L298N DC motor driver GND

HC-05 Bluetooth Module

• VCC is connected to:

  • Arduino UNO 5V
  • L298N DC motor driver 5V

• GND is connected to:

  • Arduino UNO GND
  • HC-SR04 Ultrasonic Sensor GND

• RXD is connected to:

  • Arduino UNO D1

• TXD is connected to:

  • Arduino UNO D0

HC-SR04 Ultrasonic Sensor

• VCC is connected to:

  • Arduino UNO 5V
  • L298N DC motor driver 5V

• GND is connected to:

  • Arduino UNO GND
  • HC-05 Bluetooth Module GND

• ECHO is connected to:

  • Arduino UNO D12

• TRIG is connected to:

  • Arduino UNO D11

Documented Code

Arduino UNO 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)