Chapter 21: Obstacle detector using IR

🚧 Build an Obstacle Detector Using IR Sensor:

Learn how to create an obstacle detection circuit using an IR LED and a photodiode or IR receiver. This project demonstrates how infrared technology can detect objects and trigger an LED or buzzer as an alert.

Circuit Diagram:

What You’ll Learn:
How IR sensors work for obstacle detection
Designing a circuit to detect objects and activate an alert
Assembling and testing a functional obstacle detection system

Components Used:
IR LED
Photodiode or IR Receiver
Opamp (LM358)
Resistors
LED or Buzzer
Breadboard and Jumper Wires
Power Supply or Battery

This project is ideal for beginners exploring sensor-based electronics or anyone interested in robotics and automation. Follow along to create your own obstacle detector circuit!

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