Dear all, I just join the topic by the way. I am building a grid frequency measurement with arduino Uno. Here is the sketches that i made. #include<math.h> int sensorPin =0; int sensorValue=0; int i=0; int k=0; \\ counter int arr[500];\\ sample size 500 float f; \\ frequency void setup() { Seri…

Arduino Frequency Measurement

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