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// Arduino UNO Basic Line Following Robot Code
// Code hosted on https://github.com/Mcspanky93/Line-Follower-Calibration-Buzzer
int sensor1 = A0; //connected to analog 0
int sensor2= A1; // connected to analog 1
int sensor3= A2; // connected to analog 2
int sensor4= A3; // connected to analog 3
int sensorMin1 = 1023; // minimum sensor value
int sensorMin2 = 1023;
int sensorMin3 = 1023;