Lots of ways to do delay-off but I couldn’t find a smart app to do delay-on. I think my only solution will be to write a smartapp?
I am trying to modify my existing app so that it controls two switches but with an adjustable delay-on timer for the second switch.
It is a thermostat operation and when it gets too hot I am calling for the evap cooler to turn on the fan and turn on the water pump. I want the pump to turn on immediately but the fan I want to delay turning on for 2 minutes to give time for the water pump to soak the pads.
You can always use switch.on([delay: 120000]) - this will delay the on() by 2 minutes. Cannot cancel the command though, once requested, it will happen in 2 minutes.
I am not sure, but I think RM can do this (if you have it). Also, CoRE can do this as well, you can have a piston looking for temperature above setpoint, then chain two actions:
Using evap cooloer
Turn on
Using water pump
Wait 2 minutes
Turn on
I got the smartapp tweaked with the delay and got the beta in GitHub.
I did that way and it certainly worked. I hadn’t thought of using a virtual switch as a inverted switch trigger. Thanks! However, I ended up continuing with the smartapp route because it is just awkward to make a simple room temp setpoint settings change. With my two stages of cooling fan speed it just was a little user unfriendly to the family to make a change.