#define R1PWM 5
#define L1PWM 6
#define R1EN 7
#define L1EN 8
#define R2PWM 9
#define L2PWM 10
#define R2EN 11
#define L2EN 12
#define sensor 2
#define sensorarka 3
int pot1,hiz;
void setup() {
Serial.begin(9600);
pinMode(R1PWM, OUTPUT);
pinMode(L1PWM, OUTPUT);
pinMode(L1EN, OUTPUT)...