Getting Started Guide

CLASS 3
6
Side Front
Sensor introduction
In this lesson, you'll learn the input sensor, the infrared (IR) sensor.
We can use IR to detect an object and pass the detected value to the input value. It's similar to the brightness sensor
you covered earlier.
When the infrared sensor is covered by your hand, the analog input value goes down, and when your hand is
released, the analog input value goes up. It's the opposite of the brightness sensor. If the brightness sensor detects
the brightness of the light, the infrared sensor measures the amount of light reflected.
Find the sensor labeled "IR SENSOR" on the side of the Robotori product.
Let's see how infrared sensors work on the next page!
What is an infrared(IR)sensor?