Circuit Documentation

Summary

This document provides a detailed overview of a circuit that includes an Arduino UNO microcontroller, an L298N DC motor driver, two DC motors, an ultrasonic sensor, a servo motor, a LiPo battery, and two optical encoder sensor modules. The circuit is designed to control the DC motors and servo motor, read distance measurements from the ultrasonic sensor, and capture rotational data from the optical encoder sensors.

Component List

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

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

DC Motor (Motor 1)

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

DC Motor (Motor 2)

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

Ultrasonic Sensor

• Description: A sensor used to measure distance by using ultrasonic waves.
• Pins: +VCC, Trigger, Echo, GND

Servo

• Description: A motor that can be positioned to specific angles.
• Pins: GND, VCC, PWM

LiPo Battery

• Description: A rechargeable lithium polymer battery.
• Pins: VCC, GND

Optical Encoder Sensor Module (Sensor 1)

• Description: A sensor used to measure the rotation of a shaft or axle.
• Pins: A0, D0, GND, VCC

Optical Encoder Sensor Module (Sensor 2)

• Description: A sensor used to measure the rotation of a shaft or axle.
• Pins: A0, D0, GND, VCC

Wiring Details

Arduino UNO

• 5V connected to:

  • Optical Encoder Sensor Module (Sensor 1) VCC
  • Optical Encoder Sensor Module (Sensor 2) VCC
  • Servo VCC
  • Ultrasonic Sensor +VCC
  • L298N DC Motor Driver 5V

• GND connected to:

  • LiPo Battery GND
  • Servo GND
  • L298N DC Motor Driver GND
  • Optical Encoder Sensor Module (Sensor 1) GND
  • Optical Encoder Sensor Module (Sensor 2) GND

• D13 connected to:

  • Ultrasonic Sensor Echo

• D12 connected to:

  • Ultrasonic Sensor Trigger

• D11 connected to:

  • L298N DC Motor Driver ENB

• D10 connected to:

  • L298N DC Motor Driver ENA

• D9 connected to:

  • L298N DC Motor Driver IN4

• D8 connected to:

  • L298N DC Motor Driver IN3

• D7 connected to:

  • L298N DC Motor Driver IN2

• D6 connected to:

  • L298N DC Motor Driver IN1

• D5 connected to:

  • Servo PWM

• D4 connected to:

  • Optical Encoder Sensor Module (Sensor 1) D0

• D2 connected to:

  • Optical Encoder Sensor Module (Sensor 2) D0

L298N DC Motor Driver

• OUT1 connected to:

  • DC Motor (Motor 1) pin 2

• OUT2 connected to:

  • DC Motor (Motor 1) pin 1

• 12V connected to:

  • LiPo Battery VCC

• OUT3 connected to:

  • DC Motor (Motor 2) pin 2

• OUT4 connected to:

  • DC Motor (Motor 2) pin 1

DC Motor (Motor 1)

• pin 1 connected to:

  • L298N DC Motor Driver OUT2

• pin 2 connected to:

  • L298N DC Motor Driver OUT1

DC Motor (Motor 2)

• pin 1 connected to:

  • L298N DC Motor Driver OUT4

• pin 2 connected to:

  • L298N DC Motor Driver OUT3

Ultrasonic Sensor

• +VCC connected to:

  • Arduino UNO 5V

• Trigger connected to:

  • Arduino UNO D12

• Echo connected to:

  • Arduino UNO D13

• GND connected to:

  • Arduino UNO GND

Servo

• GND connected to:

  • Arduino UNO GND

• VCC connected to:

  • Arduino UNO 5V

• PWM connected to:

  • Arduino UNO D5

LiPo Battery

• VCC connected to:

  • L298N DC Motor Driver 12V

• GND connected to:

  • Arduino UNO GND

Optical Encoder Sensor Module (Sensor 1)

• VCC connected to:

  • Arduino UNO 5V

• GND connected to:

  • Arduino UNO GND

• D0 connected to:

  • Arduino UNO D4

Optical Encoder Sensor Module (Sensor 2)

• VCC connected to:

  • Arduino UNO 5V

• GND connected to:

  • Arduino UNO GND

• D0 connected to:

  • Arduino UNO D2

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:

}

This concludes the documentation for the circuit.