Below is the circuit for the IR LED sensors which will be used for line following. The video contains the microcontrollers readings displayed on a monitor using UART protocol at a baud rate of 19.2k bits/s. puTTY was used as the display terminal. The blinking in the video results from rapidly turning on and off each LED so that the light doesn't bleed over and get picked up by any of the other sensors. Previously, each of the infrared sensors were always on, resulting in a waste of already limited power. This test confirmed that by turning on only the LEDs that are needed when they are needed, power can be saved, and the sensors can be isolated from each other.
