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I don’t really think it’s DRM. I think it’s because a lot of garage door buttons have a few functionalities, like controlling the lights as well as the door, bu
by publicmail 3y ago
I don’t really think it’s DRM. I think it’s because a lot of garage door buttons have a few functionalities, like controlling the lights as well as the door, but it works over two wires. So it probably necessitates some more complicated logic.
- ArchOversight 3y agoIt's Security+ or Security+ 2.0, it is literally obfuscated serial traffic over two wires. It is DRM. You can't just get any random button to open/close the garage.
- CamperBob2 3y agoThis one didn't. It was literally just a featureless button, engineered with intelligence it couldn't possibly need except as a means of locking out third-party hardware.
- ssl-3 3y agoEven the "dumb" buttons are on a common serial bus with Security+. I agree that it is annoying in a "It's just a momentary switch! How hard can it be!" sort of way, but it be that way anyhow.
- josephcsible 3y agoNo, it's DRM. On older models, control over auxiliary functions worked by the buttons connecting capacitors of different capacitances across the two wires (the door control itself was still a direct short). This works fine; DRM is indeed the only reason newer models changed it.