[nhorvath]

@Captn Avenger wrote:

For those interested, here is a link to a report commissioned by the Irrigation Association with the EWRI and ASCE to develop a standarized reference ET equation. This report includes all of the formulas needed to develop the data needed to compute the reference ET.

http://www.kimberly.uidaho.edu/water/asceewri/ascestzdetmain2005.pdf

The NWS has climate reports are available for free from thier FTP site, which may be an option if you live relatively close to one of thier observation sites.

ftp://tgftp.nws.noaa.gov/data/raw/cd/

Do you know if there’s a page to search for the nearest site?

[nhorvath]

@KanyonKris wrote:

Somewhat related, how does sprinkler_pi handle weather adjustments when watering say every other day? Does it simply use the current day’s weather info? It would be nice if it could look back every day since the last watering and use the average of those days.

Currently it just looks at todays conditions and the rainfall from today and yesterday.

[nhorvath]

@rszimm wrote:

Nick, yes; if the software gets an error or otherwise cannot communicate with the weather underground server then it will default back to 100% of the scheduled run time.

I’m thinking I understand what you’re asking for. If you click on the individual cell in the WUnderground column then it will pop up a box that tells you the overall parameters that fed into that calculation. e.g. the temp, the humidity, etc. Correct? That touches a bunch of code (the core C code, the html web page, and the database table that holds the data), but it shouldn’t be too terribly difficult to do. Let me root around in the code and see what I come up with…

Of course you can always look a the actual program log in /var/log/sprinklers_pi and there should be an error message in there as well as the actual data you’re looking for. If there’s a successful connection, you should get a message that looks something like:
2013/07/27 12:43:42 Adjusting H(-27)T(56)R(-114):15
This states that we’re subtracting 27% for humidity, adding 56% for temp and subtracting 115% for rainfall, resulting in a duration that’s 15% of what’s scheduled. (100-27+56-114). If there was a connection failure or some other failure, there should be an associated message in the log.

Thanks for the info on the log I didn’t know it was there and I guess that solves my immediate problem. Yes, it was a bad wunderground response. Since my soil is mostly clay I schedule 3 shorter waterings in sequence so there some time for it to soak in as the other zones go, it looks like it gets wunderground data each time and only failed on the last one so for me falling back to some cached data would be really beneficial rather than running at 100%. Do you think that is a good idea to store the last response?

[nhorvath]

rszimm,
First off thanks again for the great software… I was thinking about adding to the logging feature because this morning things ran with a wunderground scale of 100%, but the advanced wunderground status for today shows 23% (which still seems high because it rained yesterday but that’s another story). I’m guessing there was a communications issue this morning and it just defaulted to 100%, but I’m not certain. It would be nice if it stored the wunderground calculation data and it could be displayed if you clicked on the wunderground % in the logs. I’m a software developer and could help with this… just wanted to know what you thought about it before I started, and maybe if you could point me in the right direction as to how the data gets into that table.

About the 100%, is that a correct assumption that if it fails it just falls back to 100%? Does it retry at all? Maybe if it fails it could use the last retrieved data instead of 100%.
Thanks,
Nick

[nhorvath]

I developed my own relay board for the raspberry pi because I had 9 zones and didn’t want to have to use an opensprinklerpi + expansion just for the one extra zone. I posted the design on github in case anyone else wanted to use it: https://github.com/nhorvath/sprinklers_pi/tree/master/hardware/Sprinkler%20Controller

[nhorvath]

@KanyonKris wrote:

@nhorvath wrote:

What does the “Interval” setting do on the Schedule page? What do the numbers on the slider refer to?

Interval means how many days between waterings. So 1 would water every day, 2 would water every other day, 3 every 3rd day, etc.

Thanks for the answer! I suspected that’s what it might be it but I wasn’t sure.

[nhorvath]

What does the “Interval” setting do on the Schedule page? What do the numbers on the slider refer to? Sorry if I’m just missing an obvious answer but I’m new to the opensprinkler thing and it looks like your software was the best out there for it so I’m just getting started with it!

[Author]

Posts