Ops Manager Learn 2: Build and Calibrate

A line follower sensor is a sensor that requires calibration.

Calibration is the process of configuring a sensor to take into account the environment in which the sensor readings are being taken. As ambient light influences the line follower sensor, it is best to calibrate it before starting to use it.

To accurately assess whether it is above a black or white area our line follower must be properly calibrated by providing it with typical examples of both colors in the current lighting conditions to take readings from. It stores these calibration readings on disk and in memory for later reference. When the line follower is subsequently presented with a color it will assess whether that color is black or white based on which of the stored calibration readings the current reading is closest to.