Hi,
Attached are two ways of reading a phototransistors speed sensor. One uses a comparator LM393 and the other uses simple a Schmitt-trigger inverter. Which one is more suitable? Using the 74HC14 looks cheaper and easier.
Attached are two ways of reading a phototransistors speed sensor. One uses a comparator LM393 and the other uses simple a Schmitt-trigger inverter. Which one is more suitable? Using the 74HC14 looks cheaper and easier.
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