Re:OpenSesame – A device that can open fixed-code garage doo...
by mrb on Thursday June 04, 2015 @08:41PM
(#9663176)
The remotes I reverse-engineered were universal ones with generic MCUs, so their datasheets weren't useful: Skylink model 69 with an EM78P468N, and Skylink model 39 with an HT48R30A-1.
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Re:OpenSesame – A device that can open fixed-code garage doo...
by userbinator on Friday June 05, 2015 @04:17AM
(#9664429)
A bit of a shame that they used an MCU instead of an encoder/decoder ASIC, since they could've implemented something better. The fixed-code remotes I've seen use a standard IC like an HT12E.
If those weren't OTP/mask ROM, reflashing them with a different firmware (maybe even a simple rolling code?) could be an interesting exercise...