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Interfacing IR Obstacle Sensor with Raspberry Pi 3

 

ЁЯФ╣ Overview

An IR Obstacle Sensor is used to detect obstacles using infrared light. It is commonly used in robots, line-following cars, and automatic doors. In this tutorial, we will connect an IR sensor to Raspberry Pi 3 and detect obstacles.


ЁЯЫа️ Components Required

✔️ Raspberry Pi 3
✔️ IR Obstacle Sensor
✔️ Breadboard & Jumper Wires


ЁЯФМ Circuit Diagram

ЁЯФЧ IR Sensor to Raspberry Pi Connections 

IR Sensor PinConnection
VCC3.3V (Raspberry Pi)
GNDGND
OUTGPIO 17 (Detects obstacle)

ЁЯУЬ Python Code to Read IR Sensor

Save the following Python script as ir_sensor.py and run it on Raspberry Pi.

python
import RPi.GPIO as GPIO import time # Define GPIO pin IR_SENSOR_PIN = 17 # Setup GPIO.setmode(GPIO.BCM) GPIO.setup(IR_SENSOR_PIN, GPIO.IN) try: while True: if GPIO.input(IR_SENSOR_PIN) == 0: print("ЁЯЪз Obstacle Detected!") else: print("✅ No Obstacle.") time.sleep(1) except KeyboardInterrupt: GPIO.cleanup() print("\nProgram stopped.")

ЁЯТб How It Works

  1. The IR sensor emits infrared light and detects if it is reflected back from an obstacle.
  2. If an object is detected, the sensor's output is LOW (0), otherwise, it remains HIGH (1).
  3. The script continuously checks for an obstacle and displays the result on the screen.

ЁЯОп Applications

✅ Obstacle-avoiding robots
✅ Automatic doors
✅ Line-following vehicles


ЁЯУЭ рдорд░ाрдаीрдд рд╕рдордЬाрд╡рдгी (Marathi Explanation)

ЁЯФ╣ рдкрд░िрдЪрдп

IR рдЕрдбрдерд│ा рд╕ेрди्рд╕рд░ (Obstacle Sensor) рд╣ा рдПрдХ рд╕ेрди्рд╕рд░ рдЖрд╣े рдЬो рдЕрджृрд╢्рдп (Infrared) рдк्рд░рдХाрд╢ рдкाрдард╡рддो рдЖрдгि рдк्рд░рддिрдмिंрдм рдкрд░рдд рдЖрд▓्рдпाрд╕ рдЕрдбрдерд│ा рд╢ोрдзрддो. рдпाрдЪा рд╡ाрдкрд░ рд░ोрдмोрдЯ्рд╕, рдСрдЯोрдоॅрдЯिрдХ рджрд░рд╡ाрдЬे рдЖрдгि рд▓ाрдИрди-рдлॉрд▓ोрдЗंрдЧ рдХाрд░्рд╕рдордз्рдпे рдХेрд▓ा рдЬाрддो.


ЁЯЫа️ рдЖрд╡рд╢्рдпрдХ рдШрдЯрдХ

✔️ рд░ाрд╕्рдкрдмेрд░ी рдкाрдп рей
✔️ IR рдЕрдбрдерд│ा рд╕ेрди्рд╕рд░
✔️ рдм्рд░ेрдбрдмोрд░्рдб рдЖрдгि рдЬрдо्рдкрд░ рд╡ाрдпрд░


ЁЯФМ рд╕рд░्рдХिрдЯ рдХрдиेрдХ्рд╢рди

IR рд╕ेрди्рд╕рд░ рдкिрдирд░ाрд╕्рдкрдмेрд░ी рдкाрдп рдХрдиेрдХ्рд╢рди
VCC3.3V
GNDGND
OUTGPIO 17

ЁЯУЬ рдкाрдпрдеॉрди рдХोрдб

рд╣ा рдХोрдб ir_sensor.py рдиाрд╡ाрдиे рд╕ेрд╡्рд╣ рдХрд░ा рдЖрдгि рдЪाрд▓рд╡ा.

python
import RPi.GPIO as GPIO import time IR_SENSOR_PIN = 17 GPIO.setmode(GPIO.BCM) GPIO.setup(IR_SENSOR_PIN, GPIO.IN) try: while True: if GPIO.input(IR_SENSOR_PIN) == 0: print("ЁЯЪз рдЕрдбрдерд│ा рдЖрдврд│рд▓ा!") else: print("✅ рдЕрдбрдерд│ा рдиाрд╣ी.") time.sleep(1) except KeyboardInterrupt: GPIO.cleanup() print("\nрдк्рд░ोрдЧ्рд░ॅрдо рдеांрдмрд▓ा.")

ЁЯТб рд╣े рдХрд╕े рдХाрд░्рдп рдХрд░рддे?

  1. IR рд╕ेрди्рд╕рд░ рдЗрди्рдл्рд░ाрд░ेрдб рд▓ाрдЗрдЯ рдкाрдард╡рддो рдЖрдгि рддो рдкрд░рдд рдкрд░ाрд╡рд░्рддिрдд рдЭाрд▓ा рдХी рдЕрдбрдерд│ा рд╢ोрдзрддो.
  2. рдЕрдбрдерд│ा рдЖрдврд│рд▓्рдпाрд╕, рд╕ेрди्рд╕рд░рдЪा рдЖрдЙрдЯрдкुрдЯ LOW (0) рд╣ोрддो, рдЕрди्рдпрдеा рддो HIGH (1) рд░ाрд╣рддो.
  3. рдХोрдб рд╕рддрдд рд╕ेрди्рд╕рд░ рд╡ाрдЪрддो рдЖрдгि рдЕрдбрдерд│ा рдЖрд╣े рдХा рдиाрд╣ी рддे рдк्рд░िंрдЯ рдХрд░рддो.

ЁЯОп рдЙрдкрдпोрдЧ

✅ рдЕрдбрдерд│ा рдЯाрд│рдгाрд░े рд░ोрдмोрдЯ्рд╕
✅ рдСрдЯोрдоॅрдЯिрдХ рджрд░рд╡ाрдЬे
✅ рд▓ाрдИрди-рдлॉрд▓ोрдЗंрдЧ рд╡ाрд╣рди

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