Shelly BLU Door/Window

Not fully functional without using cloud-connected apps

Unlike other Shelly devices, documentation and customisation for this BLU device is close to non-existent. Apparently, it also can only switch to/from beacon mode with the proprietary Shelly app, which requires creation of a cloud account. Shelly devices being fully local was a killer feature, but it's shame that is not universal, and certainly not applicable to this device.