Circuit Documentation

Summary

This circuit is designed to interface an Arduino UNO with a 5 channel IR array and two DC Mini Metal Gear Motors through an L293D Motor Driver. The Arduino UNO is powered by a 3.7V battery connected to its Vin and GND pins. The 5 channel IR array is powered by the 5V output from the Arduino UNO. The L293D Motor Driver is used to control the two DC motors and is powered by a separate 3.7V battery. The Arduino UNO's digital and analog pins are used to interface with the IR array and to control the motor driver.

Component List

Arduino UNO

• Microcontroller board based on the ATmega328P
• It has 14 digital input/output pins, 6 analog inputs, a 16 MHz quartz crystal, a USB connection, a power jack, an ICSP header, and a reset button.

L293D Motor Driver

• A motor driver IC that allows DC motors to be driven in both directions.
• It has 16 pins and can drive two motors simultaneously.

DC Mini Metal Gear Motor

• A small DC motor with a gearbox for increased torque.
• It has 2 input pins for controlling the motor's direction.

3.7V Battery

• A power source used to power the Arduino UNO and the motors through the motor driver.

5 Channel IR Array

• An array of infrared sensors used for line tracking or obstacle detection.
• It has 5 analog outputs corresponding to each sensor and requires a VCC and GND connection.

Wiring Details

Arduino UNO

• 5V to 5 channel IR array VCC
• GND to 5 channel IR array GND, 3.7V battery -
• Vin to 3.7V battery +
• A0-A4 to 5 channel IR array A1-A5 respectively
• D3-D6 to L293D Motor Driver pins 8, 7, 6, 5 respectively

L293D Motor Driver

• Pin 5, 6, 7, 8 to Arduino UNO D6, D5, D4, D3 respectively
• Pin 10, 9 to DC Mini Metal Gear Motor 1 IN2, IN1 respectively
• Pin 12, 11 to DC Mini Metal Gear Motor 2 IN2, IN1 respectively
• Pin 3 to 3.7V battery +
• Pin 4 to 3.7V battery -

DC Mini Metal Gear Motor 1

• IN1, IN2 to L293D Motor Driver pin 9, 10 respectively

DC Mini Metal Gear Motor 2

• IN1, IN2 to L293D Motor Driver pin 11, 12 respectively

3.7V Battery 1

• + to Arduino UNO Vin
• - to Arduino UNO GND

3.7V Battery 2

• + to L293D Motor Driver pin 3
• - to L293D Motor Driver pin 4

5 Channel IR Array

• VCC to Arduino UNO 5V
• GND to Arduino UNO GND
• A1-A5 to Arduino UNO A0-A4 respectively

Documented Code

sketch.ino

void setup() {
  // put your setup code here, to run once:

}

void loop() {
  // put your main code here, to run repeatedly:

}

documentation.txt

(No additional documentation provided within the code files.)