Smart Home

Honeywell / Resideo Thermostat— RTI XP Driver

Control your Honeywell Home & Resideo Wi-Fi thermostats from RTI: browser setup, every thermostat on its own page, and a self-healing cloud connection.

Version
v1.2.0
Updated
Oct 14, 2026
Licensing
Per-processor

About this driver

Puts your Honeywell Home and Resideo Wi-Fi thermostats on your RTI panels: mode (heat, cool, auto, off, emergency heat), heat and cool setpoints, fan, and holds (permanent, until the next period, until a set time, or vacation), with live indoor and outdoor temperature, humidity, and running-state feedback. On T9 and T10 thermostats you also get up to 6 room sensors per thermostat (temperature, humidity and motion) and room priority. Setup is browser-only: click Connect, sign in to your Honeywell Home account, and paste a pairing code. Each permanent installation connects with its own free Resideo developer key (about 5 minutes, once per system; the instructions walk you through it), so one system's cloud usage never affects another's. The 120-minute free trial works right away, no key needed. You Connect once and stay connected: the link is saved on the processor and survives reboots and normal program re-downloads. Every thermostat comes in as its own source, so you build one Climate page template and point each room's layer at a different thermostat, and each one fires its own automation events (mode changed, heating or cooling started, came online or went offline) so a thermostat can trigger any RTI macro. The connection heals itself from token expiry, internet outages and processor reboots, without a redownload. You sign in directly with Honeywell, so your Honeywell password never touches our servers, and all traffic is encrypted. This is a cloud driver: it talks to the official Resideo / Honeywell Home API. Up to 12 thermostats; one license per processor. 120-minute MAC-locked free trial: try before you buy.

What's included

  • Full thermostat control in RTI: mode (including emergency heat), heat/cool setpoints, fan, and holds
  • Live feedback: indoor & outdoor temperature, humidity, and operating state (heating, cooling, idle)
  • T9 and T10: up to 6 room sensors per thermostat (temperature, humidity, motion) plus room priority
  • Browser setup: sign in with Honeywell, paste a code; each permanent install uses its own free Resideo key (about 5 minutes)
  • Connect once: the link is saved on the processor and survives reboots and program re-downloads
  • Each thermostat is its own source: build one Climate page, point each room's layer at a different thermostat
  • Per-thermostat automation events (mode change, heating/cooling started, online/offline) trigger any RTI macro
  • Self-healing cloud connection: recovers on its own from token expiry, internet outages, and reboots
  • You sign in with Honeywell, so your Honeywell password never touches our servers; all traffic encrypted
  • Up to 12 thermostats; one license per processor
  • 120-minute MAC-locked free trial: try before you buy

What you should know before buying

  • Each permanent installation needs its own free Resideo developer key, created at developer.honeywellhome.com in about 5 minutes. The free trial does not need one.
  • Supported: thermostats set up in the Honeywell Home app (T5, T6, T9, T10 and the Lyric Round). Not supported: thermostats that only run on the older Total Connect Comfort system, and thermostats in the First Alert app.
  • Our bench runs T-series thermostats. Lyric Round support and the T9/T10 room sensors follow Resideo's published API.

How licensing works

  1. Download the driver (free — button on the right), install it in Integration Designer, and load to your processor. It runs unlocked for a total of 120 minutes of run time for compatibility testing. The clock is cumulative, so it does not reset when the processor reboots.
  2. Buy a license here, then sign in and enter your processor's MAC address on your account page. We issue a signed license key bound to that MAC.
  3. Paste the key into the driver's configuration. The trial wall goes away and the driver runs unlocked indefinitely.

Not enough time to finish testing? Email support@customcontroldrivers.com and we will give you more time.

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