Circuit Documentation

Summary

This document provides a detailed overview of a circuit that includes an Arduino UNO microcontroller, various sensors, a motor driver, and DC motors. The circuit is designed to interface with multiple sensors and control motors, likely for a robotics application.

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. Line Sensor

   • Description: A sensor module used to detect lines or edges.
   • Pins: 8, 7, 6, 5, 4, 3, 2, 1, +5v, GND

3. IR Sensor

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

4. TCRT-5000 IR Sensor (2 units)

   • Description: An infrared sensor used for proximity detection.
   • Pins: 5V, GND, D0, A0

5. L298N DC Motor Driver

   • Description: A dual H-bridge motor driver module.
   • 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

6. DC Mini Metal Gear Motor (2 units)

   • Description: A small DC motor with metal gears.
   • Pins: IN1, IN2

7. 18650 Li-ion Battery x 2

   • Description: A pair of rechargeable lithium-ion batteries.
   • Pins: +, -

Wiring Details

Arduino UNO

• 5V connected to:

  • Line Sensor (+5v)
  • TCRT-5000 IR Sensor (5V) (2 units)
  • IR Sensor (vcc)

• GND connected to:

  • Line Sensor (GND)
  • TCRT-5000 IR Sensor (GND) (2 units)
  • IR Sensor (gnd)
  • L298N DC Motor Driver (GND)
  • 18650 Li-ion Battery x 2 (-)

• Vin connected to:

  • L298N DC Motor Driver (5V)

• A0 connected to:

  • Line Sensor (2)

• A1 connected to:

  • Line Sensor (3)

• A2 connected to:

  • Line Sensor (4)

• A3 connected to:

  • Line Sensor (5)

• A4 connected to:

  • Line Sensor (6)

• A5 connected to:

  • Line Sensor (7)

• D13 connected to:

  • TCRT-5000 IR Sensor (D0)

• D12 connected to:

  • TCRT-5000 IR Sensor (D0)

• D10 connected to:

  • L298N DC Motor Driver (ENB)

• D9 connected to:

  • L298N DC Motor Driver (IN4)
  • DC Mini Metal Gear Motor (IN2)

• D8 connected to:

  • L298N DC Motor Driver (IN3)
  • DC Mini Metal Gear Motor (IN1)

• D7 connected to:

  • L298N DC Motor Driver (IN1)
  • DC Mini Metal Gear Motor (IN1)

• D6 connected to:

  • L298N DC Motor Driver (IN2)
  • DC Mini Metal Gear Motor (IN2)

• D5 connected to:

  • L298N DC Motor Driver (ENA)

• D2 connected to:

  • IR Sensor (out)

Line Sensor

• +5v connected to:

  • Arduino UNO (5V)

• GND connected to:

  • Arduino UNO (GND)

• 2 connected to:

  • Arduino UNO (A0)

• 3 connected to:

  • Arduino UNO (A1)

• 4 connected to:

  • Arduino UNO (A2)

• 5 connected to:

  • Arduino UNO (A3)

• 6 connected to:

  • Arduino UNO (A4)

• 7 connected to:

  • Arduino UNO (A5)

IR Sensor

• vcc connected to:

  • Arduino UNO (5V)

• gnd connected to:

  • Arduino UNO (GND)

• out connected to:

  • Arduino UNO (D2)

TCRT-5000 IR Sensor (2 units)

• 5V connected to:

  • Arduino UNO (5V)

• GND connected to:

  • Arduino UNO (GND)

• D0 connected to:

  • Arduino UNO (D13)
  • Arduino UNO (D12)

L298N DC Motor Driver

• GND connected to:

  • Arduino UNO (GND)
  • 18650 Li-ion Battery x 2 (-)

• 5V connected to:

  • Arduino UNO (Vin)

• ENB connected to:

  • Arduino UNO (D10)

• IN4 connected to:

  • Arduino UNO (D9)
  • DC Mini Metal Gear Motor (IN2)

• IN3 connected to:

  • Arduino UNO (D8)
  • DC Mini Metal Gear Motor (IN1)

• IN1 connected to:

  • Arduino UNO (D7)
  • DC Mini Metal Gear Motor (IN1)

• IN2 connected to:

  • Arduino UNO (D6)
  • DC Mini Metal Gear Motor (IN2)

• ENA connected to:

  • Arduino UNO (D5)

• 12V connected to:

  • 18650 Li-ion Battery x 2 (+)

DC Mini Metal Gear Motor (2 units)

• IN1 connected to:

  • L298N DC Motor Driver (IN1)
  • L298N DC Motor Driver (IN3)

• IN2 connected to:

  • L298N DC Motor Driver (IN2)
  • L298N DC Motor Driver (IN4)

18650 Li-ion Battery x 2

• + connected to:

  • L298N DC Motor Driver (12V)

• - connected to:

  • L298N DC Motor Driver (GND)
  • Arduino UNO (GND)

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 microcontroller.