https://build.smartthings.com/projects/smartnest/

Now SmartThings can talk to your Nest thermostat.

Note: this is technically against the Nest TOS. So use at your own risk.

1. Create a new device type (https://graph.api.smartthings.com/ide/devices)

   • Name: Nest
   • Author: [email protected]
   • Namespace: smartthings-users
   • Capabilities:
     • Polling
     • Relative Humidity Measurement
     • Thermostat
     • Temperature Measurement
     • Presence Sensor
     • Sensor
   • Custom Attributes:
     • temperatureUnit
   • Custom Commands:
     • away
     • present
     • setPresence
     • heatingSetpointUp
     • heatingSetpointDown
     • coolingSetpointUp
     • coolingSetpointDown
     • setFahrenheit
     • setCelsius

2. Publish the device type (next to Save button) > For Me

3. If you want to switch from slider controls to buttons, comment out the slider details line and uncomment the button details line.

4. Create a new device (https://graph.api.smartthings.com/device/list)

   • Name: Your Choice
   • Device Network Id: Your Choice
   • Type: Nest (should be the last option)
   • Location: Choose the correct location
   • Hub/Group: Leave blank

5. Update device preferences

   • Click on the new device to see the details.
   • Click the edit button next to Preferences
   • Fill in your information.
   • To find your serial number, login to https://home.nest.com. Click on the thermostat you want to control. Under settings, go to Technical Info. Your serial number is the second item.

6. That's it, you're done.