Circuit Documentation

Summary

This document provides a detailed overview of a circuit that includes an Arduino UNO microcontroller, various sensors (IR, ultrasonic), a motor driver, DC motors, a buck converter, and a battery mount. The circuit is designed to interface multiple sensors and control DC motors using the Arduino UNO. The power is supplied through a buck converter connected to a 4 x AAA battery mount.

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. 4 x AAA Battery Mount

   • Description: A battery holder for four AAA batteries.
   • Pins: -, +

3. Buck Converter

   • Description: A DC-DC converter that steps down voltage.
   • Pins: IN+, IN-, OUT+, OUT-

4. Sharp IR Sensor

   • Description: An infrared sensor for distance measurement.
   • Pins: VCC, GND, Pin

5. DC Motor

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

6. L298N DC Motor Driver

   • Description: A dual H-Bridge motor driver.
   • 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

7. IR Sensor

   • Description: An infrared sensor for object detection.
   • Pins: out, gnd, vcc

8. HC-SR04 Ultrasonic Distance Sensor

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

9. Resistor

   • Description: A resistor with a resistance of 200 Ohms.
   • Pins: pin1, pin2

10. DIP Switch 3 Position

    • Description: A 3-position DIP switch.
    • Pins: 1, 2, 3, 4, 5, 6

Wiring Details

Arduino UNO

• 5V is connected to:

  • VCC of Sharp IR Sensor
  • VCC of another Sharp IR Sensor
  • VCC of HC-SR04 Ultrasonic Distance Sensor
  • OUT+ of Buck Converter
  • VCC of IR Sensor
  • VCC of another HC-SR04 Ultrasonic Distance Sensor
  • Pin 5 of DIP Switch 3 Position
  • Pin 6 of DIP Switch 3 Position
  • VCC of another IR Sensor
  • VCC of another Sharp IR Sensor

• GND is connected to:

  • GND of Sharp IR Sensor
  • pin2 of Resistor
  • GND of another Sharp IR Sensor
  • GND of HC-SR04 Ultrasonic Distance Sensor
  • OUT- of Buck Converter
  • pin2 of another Resistor
  • gnd of IR Sensor
  • GND of another HC-SR04 Ultrasonic Distance Sensor
  • gnd of another IR Sensor
  • GND of another Sharp IR Sensor

• A0 is connected to:

  • out of IR Sensor

• A1 is connected to:

  • Pin of Sharp IR Sensor

• A2 is connected to:

  • Pin of another Sharp IR Sensor

• A3 is connected to:

  • Pin of another Sharp IR Sensor

• A4 is connected to:

  • out of another IR Sensor

• D13 is connected to:

  • IN1 of L298N DC Motor Driver

• D12 is connected to:

  • IN2 of L298N DC Motor Driver

• D11 is connected to:

  • ENA of L298N DC Motor Driver

• D10 is connected to:

  • ENB of L298N DC Motor Driver

• D9 is connected to:

  • IN3 of L298N DC Motor Driver

• D8 is connected to:

  • IN4 of L298N DC Motor Driver

• D7 is connected to:

  • pin1 of Resistor

• D6 is connected to:

  • pin1 of another Resistor

• D5 is connected to:

  • TRIG of HC-SR04 Ultrasonic Distance Sensor

• D4 is connected to:

  • ECHO of HC-SR04 Ultrasonic Distance Sensor

• D3 is connected to:

  • TRIG of another HC-SR04 Ultrasonic Distance Sensor

• D2 is connected to:

  • ECHO of another HC-SR04 Ultrasonic Distance Sensor

4 x AAA Battery Mount

• - is connected to:

  • IN- of Buck Converter
  • IN- of another Buck Converter

• + is connected to:

  • IN+ of Buck Converter
  • IN+ of another Buck Converter

Buck Converter

• OUT+ is connected to:

  • 12V of L298N DC Motor Driver

• OUT- is connected to:

  • GND of L298N DC Motor Driver

L298N DC Motor Driver

• OUT4 is connected to:

  • pin 1 of DC Motor

• OUT3 is connected to:

  • pin 2 of DC Motor

• OUT1 is connected to:

  • pin 1 of another DC Motor

• OUT2 is connected to:

  • pin 2 of another DC Motor

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 connections, and the code running on the Arduino UNO.