Arduino Project

IR Obstacle Sensor

Course Introduction

In this lesson, we will learn how to use the IR Obstacle Sensor with Arduino.

Note

If this is your first time working with an Arduino project, we recommend downloading and reviewing the basic materials first.

1.1 Install Arduino IDE(Important)
1.2 Introduction of Arduino IDE

Required Components

In this project, we need the following components:

SN

COMPONENT INTRODUCTION

QUANTITY

PURCHASE LINK

1

Arduino UNO R4 WiFi

1

BUY

2

USB Type-C cable

1

×

3

Breadboard

1

BUY

4

Wires

Several

BUY

5

IR Obstacle Avoidance Sensor Module

1

BUY

Wiring

3.png__PID:78db542d-887a-4a9d-8082-3c002b7623ad

Common Connections:

IR Obstacle Avoidance Sensor Module
OUT: Connect to 2 on the Arduino.
GND: Connect to GND on the Arduino.
VCC: Connect to 5V on the Arduino.

Writing the Code

Note
You can copy this code into Arduino IDE.
Don’t forget to select the board(Arduino UNO R4 Minima/WIFI) and the correct port before clicking the Upload button.


// Define the pin used for the infrared sensor
const int sensorPin = 2;

void setup() {
  pinMode(sensorPin, INPUT);  // Set the sensor pin as input
  Serial.begin(9600);         // Initialize serial communication
}

void loop() {
  // Read and print sensor value
  Serial.println(digitalRead(sensorPin));
  delay(50);
}