Trigger alarm if garage door has been opened for more than X minutes

[DirkG]

Hi, and welcome to the Homey user and the community.

I don’t know exactly how do you want to manage this with a motion sensor. I personally would use one (or two = garage door closed) door/window sensors. But maybe this works quite well with a motion sensor, I don’t know.

Maybe this thread is helpful. If not, let us know. We will find a solution, because it is not really difficult.

Gate open timer - incrementing logic variables

I am trying to create a flow which gives an alert if I have left my gates open after a period of time. I created a variable “Gatetimer” and set it to zero. when the gates open I set it to 1, and then “try” and increment the variable by 1 every minute they are still open. My problem is that my Logic arithmetic doesn’t work. After it triggers I gat back a value of “NaN”. I have attached the picture of the flows below. Can anyone tell me what I have done wrong? And if there is a simpler way of…