Testing a flow meter.
It works pretty well, but at high flow rates (90 pulses per second) the esp8266 resets. Not sure if the reset is caused by too many interrupts or if the sensor uses too much power.
@gohan do you really need 100F? How much energy does your node consume? Maybe it is easier to get the energy consumption down than to find a cheap huge capacitor wih low self-discharge?
on our 2418, the crocodile clip for z probing can be connected to the chassis of the motor, which somehow internally is electrically connected to the drill bit. Thanks to that, we can leave it connected all the time. Otherwise, turning on the spindle without removing the crocodile clip results in bad stuff happening.
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