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I didn't understand your question.
thanks alot.i dont have any videos :(
hey,you can download the tcp/ip source code heartBeat.rarand open it with visual studio.
the esp analog leg is 0-1 volt.you can see in the sketch that i "change" the 0-5 volts to 0-1 voly using the resistors
please read step 4,the input is going down from 5v to 1v
Attiny85 EMF detector