FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -An infrared sensor (IR sensor) is a radiation-sensitive optoelectronic component with a spectral sensitivity in the infrared wavelength range 780 nm … 50 µm. IR sensors are now widely used in motion detectors, which are used in building services to switch on lamps or in alarm systems to detect unwelcome guests.

Detailed explanation-2: -What is the Input Power of the IR Sensor? The IR proximity Sensor module can be powered by both 3.3V and 5V supplies. This enables the module to be used in both 5V systems like Arduino and 3.3V systems like raspberry pi.

Detailed explanation-3: -The best examples of this sensor are pyroelectric detector, bolometer, thermocouple-thermopile, etc. These sensors are classified into two types thermal IR sensors and quantum IR sensors.

Detailed explanation-4: -IR detectors are digital out-either they detect 38KHz IR signal and output low (0V) or they do not detect any and output high (5V). Photocells act like resistors, the resistance changes depending on how much light they are exposed to.

Detailed explanation-5: -PIR Sensor Functions Humans can’t see IR, but we’ve designed electronic detection devices to pick up these signals. PIR sensors are used in thermal sensing applications, such as security and motion detection. They are commonly used in security alarms, motion detection alarms, and automatic lighting applications.