First of all, i want to say that i'm from a country notusing english in daily life so i'm sorry for my bad english. I'm having a project at my college in the MCU course. And my teacher want me to make a sumo robot using track sensor to recognize the limit line of the battle yard.
(this is the track sensor that i'm using with my robot)
The problem is that i'm going to use 4 track sensors for my robot with the interrupt of the arduino Uno. But Uno only have 2 interrrupt pins and i'm stuck with how to have more interrupt for my sensor. Please help me :D thanks alot :D