--- title: "OJ Microline Thermostat" description: "OJ Microline Thermostat is a Marketplace integration for Home Assistant. It has 169 installs sharing analytics, needs the vendor's cloud and was last updated October 17, 2026." canonical: "https://vulpo.app/integrations/marketplace/robbinjanssen-home-assistant-ojmicroline-thermostat" url: "https://vulpo.app/integrations/marketplace/robbinjanssen-home-assistant-ojmicroline-thermostat.md" last-updated: "2026-10-22" version: "1.4" --- # OJ Microline Thermostat > OJ Microline Thermostat is a Marketplace integration for Home Assistant. It has 169 installs sharing analytics, needs the vendor's cloud and was last updated October 17, 2026. OJ Microline Thermostat connects an OJ Microline Wifi thermostat to Home Assistant through the vendor's cloud. It provides a climate entity plus binary sensors, sensors, switches and date entities for vacation, temperatures, power and energy usage. Presets and target temperature can be changed, and an option sets the comfort mode duration and comfort temperature. WD5 and WG4 series thermostats receive live updates, and energy usage history is imported as a long-term statistic for the energy dashboard. For the WD5 series, actions set or cancel a vacation and edit the weekly schedule. Setup is done in the UI, where the thermostat series is chosen and account details are entered. Automatic summary of the README and code of robbinjanssen/home-assistant-ojmicroline-thermostat. Something wrong, or are you the maintainer and want your own text here? [Get in touch](https://vulpo.app/contact) [Open in My Home Assistant](https://my.home-assistant.io/redirect/hacs_repository/?owner=robbinjanssen&repository=home-assistant-ojmicroline-thermostat&category=integration) On Home Assistant 2026.11 or newer? [Open it in the Marketplace](https://my.home-assistant.io/redirect/marketplace_repository/?owner=robbinjanssen&repository=home-assistant-ojmicroline-thermostat&category=integration) ## Supports - **Uses the vendor's cloud**: Needs an internet connection and an account with the vendor. - **From the Marketplace**: Installed through the Marketplace, formerly HACS. - **Actively maintained**: Its author released or pushed a change in the last six months. ## Setting it up Install it from the Marketplace and restart Home Assistant, then add it under Settings, Devices and services. ### Connect - **Model**: The WD5 series includes OWD5 and MWD5; the WG4 series includes UWG4 and AWG4; the WG5 series includes UWG5. ### Wd5 - **Username** - **Password** - **API Key**: The API key used by the app. - **Host**: Leave blank to use the default. If specified, omit the https://. - **Customer ID**: Leave blank to use the default. ### Wg4 - **Username** - **Password** - **Host**: Leave blank to use the default. If specified, omit the https://. - **Application code**: The application code sent on login. Standard WG4 thermostats use 2 (the default); Danfoss LX (lxwifi.danfoss.us) requires 4. ### Wg5 - **Username**: The account you use in the OJ Microline app. - **Password** - **Identity host**: OAuth2 login server. Leave blank for standard OJ Microline. For nJoy / WarmlyYours (UWG5) enter: identity.njoy.warmlyyours.com (omit the https://). ### Re-enter the password - **Password** ### Reconfigure - **Username** - **Password** - **API Key** - **Host**: Leave blank to use the default. If specified, omit the https://. - **Customer ID**: Leave blank to use the default. - **Application code** - **Identity host**: OAuth2 login server. Leave blank for standard OJ Microline. For nJoy / WarmlyYours (UWG5) enter: identity.njoy.warmlyyours.com (omit the https://). ### After setup - **Set the regulation to comfort mode when changing the temperature.** - **The duration in minutes the comfort mode should be enabled.** - **Comfort temperature**: The temperature used when switching to the comfort preset. Leave empty to use the comfort temperature stored in the thermostat. Texts from the code of [robbinjanssen/home-assistant-ojmicroline-thermostat](https://github.com/robbinjanssen/home-assistant-ojmicroline-thermostat). ## Entities - **Binary sensors**: Online, Heating, Adaptive mode, Open window detection - **Dates**: Vacation begin, Vacation end - **Sensors**: Schedule, Temperature room, Temperature floor, Temperature range min, Temperature range max, Temperature set point, Energy usage, Power, Sensor mode, Boost end time, Comfort end time, Vacation begin time, and 1 more - **Switches**: Vacation ## Actions - **Set vacation**: Schedule a vacation for the thermostat's group (WD5 series). The vacation runs from 00:00 on the start date until 00:00 on the end date; if it has already started, vacation mode is activated immediately. Fields: Start date, End date - **Cancel vacation**: Cancel the scheduled or active vacation for the thermostat's group (WD5 series). An active vacation returns to schedule or manual mode, whichever was used last. - **Set schedule**: Set the events of one or more weekdays in the thermostat group's weekly schedule (WD5 series). Up to 6 events per day, on the quarter hour, at least 15 minutes apart; a time earlier than the previous one is after midnight (03:00 at the latest). Fields: Days, Events ## Troubleshooting - **Diagnostics**: Downloads a diagnostics file to attach to a bug report. ## From the README > The OJ Microline Thermostat integration allows you to control your thermostat from Home Assistant. From the README of [robbinjanssen/home-assistant-ojmicroline-thermostat](https://github.com/robbinjanssen/home-assistant-ojmicroline-thermostat#readme), [MIT License](https://spdx.org/licenses/MIT.html). Shortened. ## At a glance - Kind: Marketplace integration - Category: [Climate](https://vulpo.app/integrations/category/climate.md), Thermostats and heating - Number: 169 installs sharing analytics; 19 GitHub stars - Connection: Needs the vendor's cloud - Upkeep: Updated in the last 6 months - Needs: Needs the Marketplace (HACS on 2026.10 and older) - Latest version: 2.1.2, last updated October 17, 2026 - Domain: `ojmicroline_thermostat` - Source: - Issues: In Vulpo: Quick Toggle card, Climate card, Chart card, Apple Watch, Control Center, Climate Live Activity (Pro) [Widgets & Live Activities in Vulpo](https://vulpo.app/features/widgets-and-live-activities) Independent directory, made by the developer of Vulpo. Not affiliated with Home Assistant or the Open Home Foundation. [About these numbers](https://vulpo.app/integrations/about) Last updated 2026-10-22. 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