The four garage doors  are operated by four independant KEYLESS remote
controllers located on the outside walls. It is very convenient for skiers since
the ski room is at the same level.

Each door is identified by a number:

To leave the house:

open one door  / go to controller /    lift the lid     /  enter code  /    close lid
 from switch                                                              and  *

To enter the house:

Same sequence in reverse order