Ok so I searched the forum and there are like 14 pages of results for garage door, you better believe I'm not searching through all of that...
I have read that article in hometoys:
http://www.hometoys.com/tips/tips04.htm but i'm not quite going with that intricate setup, I only have a Uni Mod connected to the same terminals as the button on the wall, and a Powerflash connected to Seco-larm n/o garage door contacts from smarthome.
with my HA monitoring software:
lets say "garage_door" is the universal mod, and "garage_door_status" is the powerflash
when I send a "garage_door on" the garage door opens and and the signal is recorded in my HA software as that uni module being in the ON state. The garage_door_status also updates and shows as being in the on/open state in the software, which is all correct.
Problem number 1 arises when the garage door is then closed with the wall button or the remote. The state of the garage_door uni mod in the software still shows as being on. (Also, do the Uni mod contacts; when set to momentary only require an on command to operate and have no need for an off command?)
Problem number 2 arises when the garage door is operated from a remote when a car is coming home. It seems as though the series of x10 events that occur when a person is coming home blocks the powerflash signal from being seen by the HA software, as the garage_door_status never seems to be correct.