Can most garage door openers be programed to any remote or just remotes that are classified as universal?
the older door openers had 4, 8, or 12 nixie switches (tiny little switches that had an up/down position). that you would set to a random pattern. As long as your opener remote matched the switch settings on the opener, it would work. No problem. And there are still a lot of those openers out in use in peoples’ garages. However, this also made garage doors easy to fake and break into, because the sequence was not all that hard to figure out if you were patient enough. So the world went digital. Newer openers have remotes that send out a multi-digit digital code to the opener. If the opener recognizes that code as correct, the door opens. There several billion randon codes to work from, and the code changes with each use of the garage door opener. You have to synch up your opener and your remote the very first time, and from then on the digital codes are the only way to open the door. This is almost impossible to fake, because the numbers are randomly generated. Therefore … you need t
