Mysa Baseboard 3: Connecting to your Smart Home using Matter
Last updated: August 14, 2026
Product: Mysa Smart Thermostat for Electric Baseboard Heaters V3 | Firmware: 5.1.4 or later | App: Mysa app 4.18 or later
Quick Start — just want to pair? Here's all you need:
Open the Mysa app and tap the menu icon (top left).
Under Other, tap Home Assistants.
Tap Mysa Baseboard V3, then select your device.
Copy the pairing code (or keep the QR code visible).
Open your smart home app (Apple Home, Google Home, or Alexa) and add a new device using that code.
Important: For Mysa Baseboard V3, the Matter QR code is ready only after Mysa app setup is complete.
Matter is an open smart home connectivity standard that lets you add and control your Mysa Baseboard V3 thermostat directly from Apple Home, Google Home, Amazon Alexa, or any other smart home platform that supports Matter. Once paired, you can control temperature, switch between Heat and Off, and use supported voice commands while keeping your settings in sync with the Mysa app.
Before You Start
General Requirement
Your thermostat, the phone running the Mysa app, and your Matter hub must all be on the same Wi-Fi network for Matter to work correctly. If any of these are on a different network or a guest network, pairing may fail or the thermostat may appear unresponsive in your smart home app.
What You Need
Mysa Smart Thermostat for Electric Baseboard Heaters V3 with the required Baseboard V3 firmware version
Mysa app (iOS or Android) v4.18 or later, signed in to your account
Your thermostat online and connected in the Mysa app before pairing
A supported smart home platform — see platform-specific requirements below:
Platform | Phone / OS | Hub required |
|---|---|---|
Apple Home | iPhone or iPad — iOS / iPadOS 16.2 or later | HomePod, HomePod mini, or Apple TV 4K. On iOS 18+ you can pair and locally control without a hub, but automations and remote access still require one. iPad is no longer supported as a Home Hub. |
Google Home | Android or iPhone with the Google Home app | Nest Hub (2nd gen), Nest Hub Max, Nest Mini, Nest Wifi Pro, or another Matter-compatible Google device. Check Google's compatibility list if unsure. |
Amazon Alexa | iPhone or Android with the Alexa app | Most current Echo speakers, Echo Show displays, and eero routers support Matter. Older Echo (1st/2nd gen) and Echo Dot (3rd gen and earlier) do not. Check Amazon's compatibility list if unsure. |
Choose Your Platform
Follow the step-by-step guide for the platform you are pairing to:
Want to use your thermostat from more than one platform at once? See Using Matter with Multiple Smart Home Platforms.
What You Can Do with Matter
Supported Controls
Feature / Capability | Available via Matter |
|---|---|
View current temperature | Yes |
View and change setpoint | Yes |
Change mode | Yes — Heat or Off |
Voice control for mode and setpoint | Yes, where supported by your smart home platform |
Scenes / routines / automations | Yes, platform behaviour varies |
Temperature Control
Baseboard V3 supports temperature control through Matter. In your smart-home app, you can view the current temperature and adjust the heating setpoint for your thermostat.
Use the Mysa App for Mysa Features
Continue using the Mysa app to manage features that are not exposed through Matter, including schedules, shortcuts and presets, heater-type settings, temperature offset, geofencing, zoning, and other Mysa smart features.
Troubleshooting
Device not appearing or not pairing
If your Mysa Baseboard V3 does not appear or will not pair even though it is connected in the Mysa app:
Confirm that Baseboard V3 setup is complete in the Mysa app before scanning the Matter QR code.
Check that your thermostat is powered, online, and connected to the same Wi-Fi network as your phone and Matter hub.
Force close the Mysa app completely and reopen it.
Try adding the thermostat again from your Matter smart-home app.
If you still cannot add your Baseboard V3, contact Mysa Support and let us know which Matter platform you are using.
Good to Know
Settings Sync
Mysa app settings take priority. Changes sync in both directions between the Mysa app and all paired platforms.
Re-Pairing Disconnects Matter Integrations
If you re-pair the thermostat in the Mysa app, all Matter platform connections are lost. For a fresh re-pair, remove the device from every Matter platform first, then re-pair in the Mysa app, then pair each platform again using a new code. You will need to recreate automations if re-pairing your Mysa.