I highly recommend anyone having problems with this consider trying this free as in speech (and as in beer if you've got solderimg skills and an ESP laying around) solution: RatGDO [0]
40 bucks, HA, and about half an hour each (mostly fiddling with the ESP/shield pcb wiring inside the light cover of the opener from the awkward overhead-on-a-ladder position) for me to no-cloud smartify two chamberlain MyQ openers. Special sauce is that the device can MITM the "Security2.0+" signal and emulate the discrete functions of the wired wall remote, not just act as a dry contact relay on the motor.
Result is that separate entities are created not just for the door open(ing)-clos(ing) states, but also for the obstruction sensor and a separate switch to turn the opener's light on or off remotely, all exposed (as MQTT topics) in HA.
40 bucks, HA, and about half an hour each (mostly fiddling with the ESP/shield pcb wiring inside the light cover of the opener from the awkward overhead-on-a-ladder position) for me to no-cloud smartify two chamberlain MyQ openers. Special sauce is that the device can MITM the "Security2.0+" signal and emulate the discrete functions of the wired wall remote, not just act as a dry contact relay on the motor.
Result is that separate entities are created not just for the door open(ing)-clos(ing) states, but also for the obstruction sensor and a separate switch to turn the opener's light on or off remotely, all exposed (as MQTT topics) in HA.
[0] https://github.com/PaulWieland/ratgdo