Circuit Documentation

Summary

This document provides a detailed overview of a circuit that includes an Arduino UNO microcontroller, a servo motor, an ultrasonic sensor, a DC motor driver, two DC motors, and a 3xAAA battery pack. The circuit is designed to control the motors and read sensor data using the Arduino UNO.

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

Servo

• Description: A servo motor used for precise control of angular position.
• Pins: gnd, vcc, pulse

Ultrasonic Sensor

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

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

3xAAA Battery with Switch (bare wire)

• Description: A battery pack with a switch, providing power to the circuit.
• Pins: POS, NEG

Wiring Details

Arduino UNO

• 5V: Connected to vcc of Servo and +VCC of Ultrasonic Sensor
• GND: Connected to gnd of Servo, GND of Ultrasonic Sensor, GND of L298N DC Motor Driver, and NEG of 3xAAA Battery
• Vin: Connected to 12V of L298N DC Motor Driver and POS of 3xAAA Battery
• D11: Connected to ENA of L298N DC Motor Driver
• D10: Connected to IN1 of L298N DC Motor Driver
• D9: Connected to IN2 of L298N DC Motor Driver
• D8: Connected to IN3 of L298N DC Motor Driver
• D7: Connected to IN4 of L298N DC Motor Driver
• D6: Connected to ENB of L298N DC Motor Driver
• D5: Connected to pulse of Servo
• D3: Connected to Echo of Ultrasonic Sensor
• D2: Connected to Trigger of Ultrasonic Sensor

Servo

• vcc: Connected to 5V of Arduino UNO
• gnd: Connected to GND of Arduino UNO
• pulse: Connected to D5 of Arduino UNO

Ultrasonic Sensor

• +VCC: Connected to 5V of Arduino UNO
• GND: Connected to GND of Arduino UNO
• Echo: Connected to D3 of Arduino UNO
• Trigger: Connected to D2 of Arduino UNO

L298N DC Motor Driver

• GND: Connected to GND of Arduino UNO and NEG of 3xAAA Battery
• 12V: Connected to Vin of Arduino UNO and POS of 3xAAA Battery
• ENA: Connected to D11 of Arduino UNO
• IN1: Connected to D10 of Arduino UNO
• IN2: Connected to D9 of Arduino UNO
• IN3: Connected to D8 of Arduino UNO
• IN4: Connected to D7 of Arduino UNO
• ENB: Connected to D6 of Arduino UNO
• 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

DC Motor (Motor 1)

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

DC Motor (Motor 2)

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

3xAAA Battery with Switch (bare wire)

• POS: Connected to 12V of L298N DC Motor Driver and Vin of Arduino UNO
• NEG: Connected to GND of L298N DC Motor Driver and GND of Arduino UNO

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)

This document provides a comprehensive overview of the circuit, including the components used, their wiring details, and the code running on the Arduino UNO.