Circuit Documentation

Summary

This document provides a detailed overview of a circuit that includes an Arduino UNO microcontroller, an L298N DC motor driver, a 12V battery, two DC motors, a Servomotor S05NF, an HC-SR04 Ultrasonic Sensor, and a QMC5883L Magnetometer. The circuit is designed to control the motors and read sensor data using the Arduino UNO.

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. 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. Battery 12V

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

4. DC Motor

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

5. Servomotor S05NF

   • Description: A standard servomotor.
   • Pins: SIG, VCC, GND

6. HC-SR04 Ultrasonic Sensor

   • Description: An ultrasonic sensor used for distance measurement.
   • Pins: VCC, TRIG, ECHO, GND

7. QMC5883L Magnetometer

   • Description: A magnetometer used for measuring magnetic fields.
   • Pins: VCC, GND, SCL, SDA, DRDY

Wiring Details

Arduino UNO

• 3.3V connected to QMC5883L Magnetometer VCC
• 5V connected to Servomotor S05NF VCC
• GND connected to QMC5883L Magnetometer GND
• GND connected to Servomotor S05NF GND
• SCL connected to QMC5883L Magnetometer SCL
• SDA connected to QMC5883L Magnetometer SDA
• D9 connected to Servomotor S05NF SIG
• D7 connected to L298N DC Motor Driver IN4
• D6 connected to L298N DC Motor Driver IN3
• D5 connected to L298N DC Motor Driver IN2
• D4 connected to L298N DC Motor Driver IN1
• D3 connected to L298N DC Motor Driver ENA
• D2 connected to L298N DC Motor Driver ENB

L298N DC Motor Driver

• OUT1 connected to DC Motor pin 2
• OUT2 connected to DC Motor pin 1
• 12V connected to Battery 12V +
• GND connected to Battery 12V -
• OUT3 connected to DC Motor pin 2
• OUT4 connected to DC Motor pin 1

Battery 12V

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

DC Motor 1

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

DC Motor 2

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

Servomotor S05NF

• SIG connected to Arduino UNO D9
• VCC connected to Arduino UNO 5V
• GND connected to Arduino UNO GND

QMC5883L Magnetometer

• VCC connected to Arduino UNO 3.3V
• GND connected to Arduino UNO GND
• SCL connected to Arduino UNO SCL
• SDA connected to Arduino UNO SDA

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 for the Arduino UNO microcontroller.