Happy Holidays everybody!
I’ve got a newbie question. I think it’s mostly a newbie electrical question though. I have an Electron that I’m trying to hook up to the output of a flow meter. The flow meter has 4 digital outputs. I’d like to try to hook into these if I can. The flow meter is a ModMag 2000 by BadgerMeter. (https://www.badgermeter.com/resources/a9f838fe-0496-42a2-b3b1-9922aa7ccf66/m-series%20m2000%20electromagnetic%20flow%20meter%20manual%20mag-um-01272-en.pdf/)
From Page 16 and Page 17, I see that the voltage on the active digital outputs is 24v. I can’t hook the Electron up directly to those signals or it will fry them, right?
I believe I need to get some sort of converter or module (something like this https://www.amazon.com/MP1584EN-DC-DC-Converter-Adjustable-Module/dp/B01MQGMOKI/ref=sr_1_15?keywords=24v+to+3.3v&qid=1577196691&sr=8-15) to step the signal voltage down from 24v to 3.3v.
So I’d wire the loop from my flow meter into the inputs of the step down module, then I’d wire the loop on the Electron side to the outputs of the module? Then I’d need to figure out the conversion between the higher voltage/amperage side and the lower voltage size.
and since the Digital pins are either on or off, that should be all I need, right?
Is that right?
Is there an easier way to get the voltage from 24v down to 3.3 without hooking up a step down module? or am I looking at this all wrong?