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For general questions about the GPIO pins, do not use this tag; use [gpio]. This tag is for the npm (node.js package manager) module for controlling the GPIO pins on the Pi using JavaScript. It is unrelated to the pigpio C/Python library. There is also a dynamic C library to control Raspberry Pi GPIO channels https://github.com/Milliways2/pi-gpio.git

1 vote

Flow meter circuit and low pulse count

I'm going to guess what your circuit really looks like because the schematic does not look reasonable to me. I'm guessing that you have used two resistors as a voltage divider to reduce the maximum vo …
Elliot Alderson's user avatar