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Topic: Relay module boards causing reset (Read 1 time) previous topic - next topic

outsider

#15
Jan 26, 2019, 12:56 am Last Edit: Jan 26, 2019, 01:04 am by outsider
There in no connection between Arduino GND and 24V ground, the vac sensor's output is referenced against 12V ground, reply #5.

TomGeorge

There in no connection between Arduino GND and 24V ground, the vac sensor's output is referenced against 12V ground, reply #5.
If your vac sensor is powered by the 24V supply, the output 0-5V is referenced to the 24V supply.
To make it work you need to connect 24V gnd to Arduino gnd, then the 0 -5V will be referenced to the Arduino gnd.
Tom... :)
Everything runs on smoke, let the smoke out, it stops running....

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