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[gwp1]

I think I'm just staring at this too hard so I'm opening up to the collective.

Scenario: water the gardens at XX time unless one or both of the following are TRUE:

• More than .25" of rain has fallen yesterday (I have an entity for this)
• It is currently raining (I have an entity for this)

I had it set to OR and that (obviously) doesn't work because, whilst first bullet was TRUE second bullet was FALSE and so the water flowed.

I'm thinking, atm, of something using Reaction>Group and building out something that isolates the conditions vs making them an OR.

Am I on the right path here?

[gwp1]

In staring even harder I came up with this:

Since image functionality is STILL BROKEN on this forum (but, oh, it LOOKS pretty)...

Triggers not or
Comment: This is a NOT rule. If either of these conditions are NOT true then this rule is FALSE. (If the rainfall total either yesterday or today is more than 1/4" then FALSE).

---

Entity Attribute: Weatherflow Precipitation Yesterday (hass>sensor_weatherflow_precipitation_yesterday) value_sensor.value <= 0.25

---

OR Entity Attribute: Weatherflow Precipitation Today (hass>sensor_weatherflow_precipitation_today) value_sensor.value <= 0.25

Currently, there was 1.61" of rain yesterday so the outcome is false and there has been no rain today so that outcome is true - as such the ruleset is rendered false.

Is my thinking sound here?

[Pabla]

So basically the way you have your rule structured right now is that the group will go true either when it rains more than 0.25" or its currently raining. Which is the opposite of what you'd want. As you mentioned in your recent post switching this to a not or operator should fix it. Meaning the group will be true if it hasn't rained more than 0.25" yesterday or is currently raining.

[gwp1]

@Pabla Thanks!

I altered the premise very slightly to be rain amounts on both days because, hey, it might be actually raining right then but it might be a very slight passing shower which doesn't end up providing the needed water amount.

The updated version looks at amounts on both days, instead.

[Pabla]

@gwp1 Excellent! Regardless of condition the not operator should do the trick

[gwp1]

@Pabla Hmmm. We've had a sudden storm that has dropped 2" of rain today. As such both Conditions are now false and then ruleset has gone SET.

SO... testing, when I flip the criteria of the Conditions to >= .25 both go true and the ruleset goes false.

I did a quick test and, yes, it appears by bumping one of the two Conditions to be silly high like 5" (so today's actual is less than that) it makes one Condition true and one false and the ruleset remains as unset. Bumping both to be silly high (so both actuals are less than that) makes the ruleset toggle to SET which is the desired outcome. Any or both of the Conditions being TRUE toggles the ruleset unset. Both conditions being false toggles the ruleset TRUE.

The expectation is that tomorrow morning there will be no flow of water as at least today's Condition is true so no matter what tomorrow's is (between midnight and 0600 ET) this ruleset will not SET.

[Pabla]

@gwp1 I am not sure I am quite following. Are you saying that when both conditions: Rain amount yesterday and Rain amount today are true (meaning a certain amount of rain has fallen either yesterday or today) that the ruleset still goes true and waters the garden?

[gwp1]

@Pabla

@gwp1 said in [SOLVED] Sprinkler control: one or both of two conditions to prevent watering:

Any or both of the Conditions being TRUE toggles the ruleset unset. Both conditions being false toggles the ruleset TRUE.

So the settings are as such now:

---

Triggers [not or]

---

Entity Attribute: Weatherflow Precipitation Yesterday (hass>sensor_weatherflow_precipitation_yesterday) value_sensor.value >= 0.25

---

OR Entity Attribute: Weatherflow Precipitation Today (hass>sensor_weatherflow_precipitation_today) value_sensor.value >= 0.25

---

Right now the first one is true and the second is false. As such, the rule is RESET. Unless we get rain between now and tomorrow morning, the "yesterday" will roll off and "today" will become "yesterday" and both Conditions will be be false and the rule will change to SET and the water will flow.

[Pabla]

Ah I see but isn't that what you'd expect? Say yesterday you got over 0.25 (inches?) of rain and today you got 0.23. This would mean your garden will not be watered.

Lets say no rain falls between today and tomorrow. That means when tomorrow rolls over yesterdays rain total now becomes 0.23 and todays is 0. Based on that info you'd want your garden to be watered.

To me the ruleset is working as intended, if you still wouldn't want it to water I would set your "todays" threshold a little lower.

[gwp1]

@Pabla The original Conditions were <= .25 whereas the working version had to be flipped to >= .25. That's what ultimately made it work.