I tried but the links between the objects in the application ios works very badly. I move a little objects and the links do not follow.
Finally: Here is the solution not to optimize because I had planned to kill the application.
I used the temp senser but I recommend you to wait for a better version or good luck.
With stokage variables or with mBlock, it would be very easy but we mBlock on PC does not work for now.
I made ring 3 times then wait between 15 and 15 minutes and 30 seconds