Integrating arduino rain sensor with dome shutter

[jwoody (Jeremy)]

Hello all.
I am in the process of adding a dome in my observatory and I was thinking about a rain sensor.
The shutter (and rotation) of the dome is controlled by an Arduino.
The rain sensor is controlled by a separate Arduino.
How do I integrate the two together so that if the rain sensor goes off the shutter will close automatically? Can the code for the rain sensor be added with the code for the shutter?

This is the rain sensor I have done https://www.instructables.com/id/Ard...s-Rain-Sensor/
and the shutter .ino
https://drive.google.com/open?id=1vj...nwOP-Iz493N7lJ

The code for the shutter does make reference to a rain sensor but I am not sure what I am looking at.

Hope that all makes sense.
Thank you
Jeremy

[sil (Steve)]

I can't access the links from work. but no reason you can't combine the two. Helps if you learn what you're doing instead of copy and pasting. break it down into the two tasks and get a handle on them: opening/closing the shutter at will from your arduino code; reading the rain sensor, finding a suitable value to determine "dry" from "damp" then you simply read and compare (if/then sort of thing) to activate shutter.

But also comprehend what the sensor is doing and the consequences. and of course I'd use at least six of them. plus I'd be testing for dewpoint conditions. start simple, learn then expand to something feasible.

[ChrisV (Chris)]

+1 with Steve. Break it into bits and understand how each works.