Circuit Documentation

Summary

This circuit involves an Arduino UNO microcontroller interfacing with an HC-SR04 Ultrasonic Sensor, a 16x2 I2C LCD, a DC Motor, and an L298N 2A Dual Motor Driver Module. The circuit is powered by a 12V battery. The Arduino UNO controls the motor driver and reads data from the ultrasonic sensor, displaying the information on the LCD.

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. HC-SR04 Ultrasonic Sensor

   • Description: A sensor used for measuring distance using ultrasonic waves.
   • Pins: VCC, TRIG, ECHO, GND

3. 16x2 I2C LCD

   • Description: A 16x2 character LCD display with I2C interface.
   • Pins: GND, VCC, SDA, SCL

4. DC Motor

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

5. Battery 12V

   • Description: A 12V battery used to power the circuit.
   • Pins: +, -

6. L298N 2A Dual Motor Driver Module with PWM Control

   • Description: A motor driver module capable of controlling two DC motors with PWM control.
   • Pins: OUT1, OUT2, 12V, GND, 5V, OUT4, OUT3, ENA, IN1, IN2, IN3, ENB, IN4

Wiring Details

Arduino UNO

• GND connected to:

  • Battery 12V (-)
  • 16x2 I2C LCD (GND)
  • L298N Motor Driver (GND)
  • HC-SR04 Ultrasonic Sensor (GND)

• 5V connected to:

  • 16x2 I2C LCD (VCC)
  • L298N Motor Driver (5V)
  • HC-SR04 Ultrasonic Sensor (VCC)

• A4 connected to:

  • 16x2 I2C LCD (SDA)

• A5 connected to:

  • 16x2 I2C LCD (SCL)

• D10 connected to:

  • L298N Motor Driver (ENA)

• D7 connected to:

  • L298N Motor Driver (IN1)

• D6 connected to:

  • L298N Motor Driver (IN2)

• D3 connected to:

  • HC-SR04 Ultrasonic Sensor (ECHO)

• D2 connected to:

  • HC-SR04 Ultrasonic Sensor (TRIG)

HC-SR04 Ultrasonic Sensor

• GND connected to:

  • Arduino UNO (GND)

• VCC connected to:

  • Arduino UNO (5V)

• TRIG connected to:

  • Arduino UNO (D2)

• ECHO connected to:

  • Arduino UNO (D3)

16x2 I2C LCD

• GND connected to:

  • Arduino UNO (GND)

• VCC connected to:

  • Arduino UNO (5V)

• SDA connected to:

  • Arduino UNO (A4)

• SCL connected to:

  • Arduino UNO (A5)

DC Motor

• pin 1 connected to:

  • L298N Motor Driver (OUT1)

• pin 2 connected to:

  • L298N Motor Driver (OUT2)

Battery 12V

• - connected to:

  • Arduino UNO (GND)

• + connected to:

  • L298N Motor Driver (12V)

L298N 2A Dual Motor Driver Module with PWM Control

• GND connected to:

  • Arduino UNO (GND)

• 5V connected to:

  • Arduino UNO (5V)

• 12V connected to:

  • Battery 12V (+)

• ENA connected to:

  • Arduino UNO (D10)

• IN1 connected to:

  • Arduino UNO (D7)

• IN2 connected to:

  • Arduino UNO (D6)

• OUT1 connected to:

  • DC Motor (pin 1)

• OUT2 connected to:

  • DC Motor (pin 2)

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)