Circuit Documentation

Summary of the Circuit

This circuit is designed to control two DC motors using an Arduino UNO microcontroller and an L298N DC motor driver. The motors' operation is influenced by inputs from a 5 channel IR array, which is powered by the Arduino UNO. A 7.4V battery provides power to the system, with a rocker switch to control the power flow. The Arduino UNO is programmed to manage the motor driver inputs, which in turn control the speed and direction of the DC motors.

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.

DC Motor (x2)

• An electric motor that runs on direct current (DC) electricity.
• It has two pins for power and ground connections.

L298N DC Motor Driver

• A dual H-bridge motor driver that can drive two DC motors or one stepper motor.
• It has pins for motor outputs, power supply, and control inputs from the microcontroller.

7.4V Battery

• A power source for the circuit.
• It has a positive and a negative terminal.

5 Channel IR Array

• An array of infrared sensors used for line tracking or obstacle detection.
• It has output pins for each sensor and power supply pins.

Rocker Switch

• A switch to control the connection of the power supply to the circuit.
• It has two pins to open or close the electrical circuit.

Wiring Details

Arduino UNO

• 5V connected to 5 channel IR array VCC
• GND connected to 5 channel IR array GND and L298N DC motor driver GND
• Vin connected to L298N DC motor driver 5V
• Analog pins A0 to A5 connected to 5 channel IR array pins A1 to A5
• Digital pins D4 to D7 connected to L298N DC motor driver pins IN3 to IN1
• Digital pins D10 and D11 connected to L298N DC motor driver ENA and ENB

DC Motor

• pin 1 and pin 2 of the first DC Motor connected to L298N DC motor driver OUT3 and OUT4
• pin 1 and pin 2 of the second DC Motor connected to L298N DC motor driver OUT1 and OUT2

L298N DC Motor Driver

• GND connected to Arduino UNO GND and 7.4V battery -
• 5V connected to Arduino UNO Vin
• 12V connected to Rocker Switch 1
• ENA, ENB, IN1, IN2, IN3, IN4 connected to Arduino UNO digital pins D10, D11, D6, D7, D4, D5
• OUT1, OUT2, OUT3, OUT4 connected to the respective pins of the two DC Motors

7.4V Battery

• + connected to Rocker Switch 2
• - connected to L298N DC motor driver GND

5 Channel IR Array

• VCC connected to Arduino UNO 5V
• GND connected to Arduino UNO GND
• A1 to A5 connected to Arduino UNO analog pins A0 to A5

Rocker Switch

• 1 connected to L298N DC motor driver 12V
• 2 connected to 7.4V battery +

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 for the code.