Controlling an LED with Arduino Using an IR Sensor An Infrared (IR) sensor is a commonly used device for proximity detection and object sensing. When combined with an Arduino and an LED, it can create ...

This project demonstrates how to use an IR sensor module with an LED controlled by an Arduino board. The IR sensor module is connected to pin 6 of the Arduino board, and an LED is connected to pin 5.

The automatic AC temperature controller is built around an Arduino mega development board. A DHT11 sensor is used to detect the ambient temperature and humidity. A TSOP1738 IR sensor is used to decode ...

PIR Sensor Module Parts. The topmost part of the PIR sensor consists of a lens with concentric grooves carved into the plastic. These are called Fresnel lens.. The contours on this plastic helps in ...

– IR sensor module – 5V USB power adaptor: Meanwhile, the LCD I2C visually displays the student count and conveys an overload message when the limit is breached. ... Once the circuit is correctly ...