It took me close to an hour to figure out how to pair an iHome SP5 switch, may be worth adding to the readme.

Steps:

1. Reset the device by holding the power switch for 12 seconds
2. Open the iHome app and tap the Add Device button
3. Select a switch and tap Continue
4. Allow access to your home network
5. Watch the switch closely as the blinking white indicator light switches to solid, quickly exit the app when the light transitions

If you don't exit the app quickly enough and the setup screen on your mobile device transitions to the camera/homekit code input screen, you waited too long and need to start over. I was not able to pair the device successfully until I managed to exit the app before the homekit code input screen.