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Applications

Home Appliances: Blinking LEDs are used in devices like washing machines,
microwaves, and air conditioners to indicate power, cycle completion, or
malfunction alerts.

Security Systems: In alarm systems, blinking LEDs are used to signal
when the system is active, armed, or when there’s an intrusion or fire
detected.

Programming the Automatic Fan

An IR sensor is a special sensor that can sense when something is nearby by detecting
invisible infrared light which is not visible to our eyes.

How Does It Work?

Infrared Light: Everything that is warm gives off some infrared light. This includes
people, animals, and hot objects. The hotter something is, the more infrared light it produces.

Detection: An IR sensor has a special part called a photodetector that can “see” this infrared light.
When infrared rays hit the sensor, it creates an electrical signal.

Responding to Changes: When something warm, like a person, moves in front of the sensor, the
amount of infrared light changes. The sensor can notice this change and do things like turn on a light
or set off an alarm.

Motor Block

Motor is a small device that helps machines or things to spin,
turn, or move.

21 st
Century #Information Literacy
Activity Automatic Fan Skills

Overview

Understand the basics of using an infrared (IR) sensor to detect objects and their proximity. Learn
how to interface and program Tinker Orbits Kit components to create an automated fan control
system.

44 RoboGenius (V1.0)-VII