Today the students built and programmed the light follower. This
build is from the cities and transportation
set. It consists of two light sensors and one motors that powers
a neat gear system. The one motors
can make the robot turn in both directions.
The students programmed the robot so that if one light sensor read
a reading brighter than the other sensor,
the wheel opposite to the brighter sensor turned, making the robot
follow the light. When a flashlight is
held in front of the bot it will follow wherever the light leads it.