whipdry

Hi Peter

A quick update. I have a 3D printer, so I printed off a series of smaller and smaller aperture reducers (for want if a better name) until I got some sky temperature readings that I thought were reasonable. So, I’m testing that at the moment! My rain sensor module, I think, just indicates rain or no rain so that has been impossible to properly calibrate in the ascom driver. So I’ve disabled the rain sensor. I’ve also tweaked the Arduino code so that the unit starts off as Unsafe and then changes to Safe if the avg temperature difference warrants it.   The original code started at an avg diff of 21.5 degrees which I felt was a bit high. This meant the driver immediately indicated Safe, even with clouds, then changed to Unsafe a short time later. I prefer to start Unsafe. 
If you want any of the 3D printed gizmos, let me know. If you have any suggestions on the my rain sensor issue, let me know. 
Cheers

Bill

Hi Bill, 

I like the design of 3d prints, hopefully one them will give the result you need. 

Seems the rain sensor board has has adjustment for sensitivity... can't remember ever changing mine, I just set both the Wet & Dry Threshold sliders to 80%

Not sure where you sourced your project box, mine was described as waterproof but the supplied lid seal leaked & screws went rusty! 

Any chance you can tell me exactly where in the code you made the changes? 

Cheers

Peter 

It looks like I have a similar rain sensor. I think the sensitivity switch just adjusts the point at which it triggers. I never get a "Dry" situation - it just hovers around 30-35%. So I've set Dry Threshold to 70% and Wet Threshold to 0% - effectively disabling it.

My project box also leaks - had to seal the joints with sticky tape. Will get something better or I might drill some drainage holes.

The lines I amended are:

float avg_delta_celsius = 15.5; //WMcS Edit - was 21.5

avg_delta_celsius = ((avg_delta_celsius*79.0) + delta_celsius)/80.0; // WMcS Edit - Reduce averaging period

Hope this helps.

Bill