Driver Type
Categories
- Recent Updates
- Access Control
- Amplifier
- A/V Receiver
- Climate and Pool Control
- Disc Player / Changer
- Display
- DSP
- DVR
- Irrigation / Sprinklers
- Lighting Control
- Matrix Switch
- Media Server and Player
- Multi-Room A/V
- Networking
- Power and Rack Management
- Security
- Surveillance
- Teleconferencing
- Training
- Tuner
- Utility
- Video Projector
Driver Type
Categories
- Recent Updates
- Access Control
- Amplifier
- A/V Receiver
- Climate and Pool Control
- Disc Player / Changer
- Display
- DSP
- DVR
- Irrigation / Sprinklers
- Lighting Control
- Matrix Switch
- Media Server and Player
- Multi-Room A/V
- Networking
- Power and Rack Management
- Security
- Surveillance
- Teleconferencing
- Training
- Tuner
- Utility
- Video Projector
Google Nest SDM Climate
By: AMR HASSAN ALY
Updated: July 19, 2026
Version: 2.11
Google Nest SDM Climate Driver for RTI
Control compatible Google Nest thermostats directly from an RTI control system using the Google Smart Device Management (SDM) API.
MAIN FEATURES
• Heat, Cool, Heat/Cool, and Off modes
• Heating and cooling setpoint control
• Current room temperature feedback
• Humidity feedback
• HVAC operating-state feedback
• Online and cloud-connection status
• Two-way feedback between RTI and Google Nest
• Automatic OAuth access-token refresh
• Support for one Google/Nest account
• Support for one home
• Support for up to five Nest thermostats
• Thermostat discovery and resource-ID mapping
• RTI Web Diagnostics and TraceViewer support
• Fast mode response and room-temperature setpoint baseline
COMPATIBILITY
• RTI XP processors with supported script runtime
• RTI Integration Designer 11
• Google Nest thermostats supported by the Google Smart Device Management API
• Internet connection required for the RTI processor
2-HOUR TRIAL after it expire 100$ license will be needed per Mac adddress
The driver includes a full-feature two-hour trial.
The trial begins after the first successful Google authentication and thermostat discovery. After the trial expires, cloud polling and thermostat commands are disabled. The physical Nest thermostat and Google Home application will continue to operate normally.
PERMANENT LICENSE
A permanent license is tied to the RTI processor MAC address.
One license includes:
• One RTI processor
• One customer home
• One Google/Nest account
• Up to five Nest thermostats
• Permanent activation for the licensed processor
HOW TO REQUEST A LICENSE
Please send the following information:
• Customer or project name
• RTI processor MAC address
• Number of Nest thermostats
• Dealer or installer name
Text:
714-860-9866
Email:
support@defendersolution.tech
License requests are normally answered within two hours during regular business hours.
SUPPORT
Defender Solution
Amr Aly
Phone: 714-860-9866
Email: support@defendersolution.tech
Website: https://defendersolution.tech
Service Areas:
Orange County, Los Angeles County, and Riverside County
IMPORTANT
Google OAuth credentials, including the Client Secret and Refresh Token, must remain private. Each customer installation should use the Google account that owns the Nest thermostats.
This is an independent third-party driver and is not produced, sponsored, or endorsed by Google, Nest, or RTI.
Google Nest SDM Climate v1.9.11
Provided by Defender Solution / Amr Aly
Phone: 714-860-9866
Email: support@defendersolution.tech
Website: https://defendersolution.tech
License
Permanent license: $100 USD per RTI processor MAC address.
One license covers one RTI processor, one home, one Google/Nest account, and up to five thermostats.
A full-feature two-hour trial begins after the first successful thermostat discovery.
Required values
1. Device Access Project ID
2. OAuth Client ID
3. OAuth Client Secret
4. OAuth Refresh Token
5. Thermostat names and resource IDs
Google authentication setup
1. Use the Google account that owns the Nest home and thermostats. The thermostat must already be visible in Google Home or the Nest app.
2. Create or select a Google Cloud project.
3. In Google Cloud, open APIs & Services > Library and enable Smart Device Management API.
4. Configure the OAuth consent screen. If the app is External and still in Testing, add the customer Google account as a Test user.
5. Open APIs & Services > Credentials and create an OAuth 2.0 Client ID using Web application / Web server.
6. Add this Authorized redirect URI exactly: https://www.google.com
7. Copy the OAuth Client ID and OAuth Client Secret.
8. Open the Google Device Access Console, register when required, and create a Device Access project using that OAuth Client ID.
9. Copy the Device Access Project ID. This UUID is different from the Google Cloud Project ID.
Retrieve the Refresh Token
1. Open the Defender Solution Google Nest SDM RTI Setup Tool.
2. Enter Device Access Project ID, OAuth Client ID, and OAuth Client Secret.
3. Click Open Authorization.
4. Select the Google account that owns the Nest devices and grant access to the correct home and thermostats.
5. After Google redirects to https://www.google.com?code=..., copy the complete final browser URL.
6. Paste the final URL into Authorization URL / Redirect URL / Code.
7. Click Exchange Code to obtain the Refresh Token and temporary Access Token.
8. Click Discover Devices. Verify the thermostat count, room names, online status, and resource IDs.
9. Copy the RTI fields into Driver Properties in Integration Designer.
Verify in RTI Web Diagnostics
License Status: Trial Active or Licensed
Cloud Connected: true
Thermostats Found: expected number
Discovery Summary: correct names and IDs
Last Driver Error: no error
Common errors
Access denied: add the customer account as an OAuth test user when the app is External and in Testing.
Redirect URI mismatch: use https://www.google.com exactly in both Google Cloud and the authorization flow.
Invalid client: verify the Client Secret belongs to the same Client ID.
No devices found: verify the correct account, home permissions, Device Access Project ID, and device authorization.
Latest fixes
v1.9.11: Added clearer authentication and token instructions. No thermostat-control changes.
v1.9.10: Commercial publishing and $100 per-MAC license description.
v1.9.9: Fixed AUTO upper-setpoint handling and the 55 F / 75 F reset issue.
v1.9.8: Added two-hour trial and permanent per-MAC licensing.
v1.9.7: Added faster response and room-temperature adjustment baseline.
Security
Never display or share real Client Secrets, Refresh Tokens, Access Tokens, permanent license keys, or customer account information.