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  1. I am taking an intro to electronics course. In lab we are implementing "power blocking" to reduce the total amount of power used by our sensor front end. Bellow is the sketch we are using. I do not understand how it works. The way another student described the code to me is: assume the entire loops runs in 1 + 19 ms. power would be on for a total of 1/20 ms == 5% of the time my confusion is with the call delayMicroseconds(1000) in the loop. (I did not find the documentation helpful) thanks in advance Andy //****************************************************************
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