These four cases are the only possible conditions for a basic line follower robot. LFR-IR Sensor Card Circuit diagram Our LFR has two infrared sensor cards (left and right) on the bottom of the ...

In short, U2 acts as the interface between the microcontroller (U3) and the dc motors (M1&M2) in which instructions from the microcontroller go into its input pins and the outputs are used to drive ...