So im using a newping example code to get 4 sensors running. My issue is, Whenever something is within lets say 40cm, I want it to turn on led 1 and 2 and do a tone, Heres the code so far #include <NewPing.h> #define led1 11 //Right LED #define led2 10 // Left LED #define SONAR_NUM 4 // Nu…

HC-SR04 NewPing Help

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