What are the pitfalls on designing QuickApps

[RohitNz 7]

Just going to start on Quickapps to rewrite my VDs from HC2.  Unfortunately, the HC2 died, so I have to do it again from memory.

 

The first thing that's not clear is the type - what their capabilities and limits are.

 

Second is - for a door sensor, you are allowed to put on buttons and labels - when does that make sense ?

 

I need to make these (as I had them before in HC2).  Any ideas, pitfalls would be appreciated

 

1. Virtual Device to replace switches that are being used to provide sensor information.  I have motion sensors using standard PIRs around the house connected to fibaro relays.  In HC2 there was always the danger that a user would turn the relay off.  I also have relays being used to monitor the tripping of some Circuit Breakers.  I am also using relays to monitor the current state of power on the 3 phases and the state of the generator.  In HC2, the VD was being updated by scenes that fired on sensor status change.  Do I still have to do this, or does the code now run only when the QuickApp is opened by the user ?
2. Combos - I had garage door devices that combined sensor and door action 
3. Blind Control VD - I had two buttons for each room (open/close).  Where the buttons had code under them so the blind would only close if the window/door was NOT open.  Then I was pressing buttons on this VD from other scenes to open/close blinds.  This meant that the logic for open/close blinds was in one place.  For instance, if there was a storm warning, the blinds would not close at night - in case there was no power in the morning.  It also gave the family a compact device to control all blinds. Can I still activate the buttons on the QuickApps from scenes ?
4. Numerous Variable Control VDs that overrode the parameters used in scenes, such as time of activation or "pool closed for cleaning", or "party in progress", or "Storm warning", Select which blinds would be controlled automatically etc
5. A Dangerous Control VD to turn on/off cold-water, sewage system, the two hot water cylinders, starting/stopping generator etc.  Is it still true that unicode pictures are not allowed anymore ?
6. I also had Overview VDs, One for the status of all doors, one for all windows, and another for all motion sensors.  The Mobile app gives the total, but it doesn't seem to give any details.  Have I missed something, or do I still have to code these as QuickApps.