Hi,
First of all, many thanks for sharing this awesome project. It perfectly fits my needs for automating my greenhouse watering.
Because I live in Belgium, there is a small risk that during late March, early April we still have 1 or 2 nights of frost. For this reason I have bought a 12V heater which is pointed towards my youngest plants for protecting them. I want to activate this heater (through relay) on a temperature treshold (for example, below 2°C).
I have a bit of trouble understading the 'Automation' feature, which I think is a good fit for what I want to do.
Currently I have set it up according to the screenshot for testing purposes:
I would expect the relay to be activated for 10 seconds each minute if the temperature is below 2, or above 25°C in the past 2 minutes.
However, current temperature is 23°C and still it is activated. Perhaps I should interpret the sensor values like 'activate if between 2 and 25°C'? Is there a way I can set it up to activate when they are not between min and max?
Thanks!
Just to make clear how the system works detecting Actuator/Sensor anomalies, here what happened to my system just few days ago. I got this mail:
The soil moisture sensor reading went below the threshold I set to 48, so the system activated the irrigation for two times. But after the evaluation period, the reading was still below 48 so the system sent a warning mail as above.
The chart was this:
Indeed the first warning mail was sent on June 26 around 16:00, after reading the mail I activated the valve manually for 50sec and everything was ok (this made me a little confused).
But then I got another warning mail on June 28th. As you can see from the above chart around 00:00 the system activated the irrigation for 30sec two times but the sensor reading was still going down. The day after after at about 8:00, I read the mail and I tried several manual activation, the valve was actually not working anymore. Took some time to get a new valve, and before the end of the day I was able to manually activate it, this time it everything worked. (the old valve was kind of stuck)
To be noted that starting from the warning when it detected an anomaly the system was not proceeding anymore automatically. The automation was reactivated when sensor reading was again over the minimum threshold (or the reset button is clicked).