I’ve started a garage door project using a photon, a relay shield, an internet button and an iPhone (or several).
Technically the project is pretty simple, the most “risky” part (for unexperienced people) would be connecting the relays (connection to the garage door button is straightforward, since it’s low voltage, but connecting the garage light requires a bit more caution, obviously).
I use the internet button on the door itself, to determine the position of the door. That part is the less trivial, and requires experimenting with the embedded accelerometer. I plan to switch to a simple accelerometer shield since I don’t make any useful use of the lights and buttons on the button.
It’s also my first incursion into iPhone apps, but so far so good, the app seems to communicate well with the photons, thanks to the Spark iOS SDK.
Also, the latest firmware version for the Photon makes it even better, thanks to threading, since the WiFi connection doesn’t interfere anymore with the other features - although obviously WiFi is required when you want to open/close the door or switch the light
That’s a work in progress, and I plan in a next step to just photonize the whole house on the screen of my iPhone