//www.elegoo.com
//Line tracking IO define
#define LT_R1!digitalRead(10)
#define LT_M!digitalRead(4)
#define LT_L!digitalRead(2)
#define ENA 5
#define ENB 6
#define IN1 7
#define IN2 8
#define IN3 9
#define IN4 11
#define carSpeed 150