Ductless HVAC Wi-Fi Module

(5 customer reviews)


  • Compatible with Carrier and other ductless systems
  • Runs ESPHome, Integrates with Home Assistant
  • 17x cheaper than the Carrier brand dongle

Available on backorder

Category: Brand:

The SMARTLIGHT SLWF-01 Pro v1.1 provides Wi-Fi capabilities for a wide variety of ductless HVAC systems. This simple Wi-Fi dongle is easy to install and integrate into Home Assistant via autodiscovery.

The dongle runs ESPHome.

Compatible brands may include:

  • Midea
  • Carrier
  • Electrolux
  • Idea
  • Neoclima
  • Beko

We here at CloudFree use this dongle to control the Carrier 40MAHB ductless unit in our office.


Setup instructions:

  1. Insert into the USB port of the air conditioner

  2. Wait for the AC-wifi network to appear

  3. Connect to it with the password slwf01pro

  4. Go from the browser to the address

  5. In the menu, select the home WiFi network

  6. Enter the password and connect.


Designed and assembled in Ukraine

Weight 0.19 oz
Dimensions 2.125 × 0.88 × 0.177 in

5 reviews for Ductless HVAC Wi-Fi Module

  1. Cole Hanson (verified owner)

    Works on my MrCool unit which has zero HA access and a janky app. Was hoping to have more options in the system – looking forward to using this with HA!

  2. Jared Janhsen (verified owner)

    Have one of these in a Pioneer mini-split system. Works great with Home Assistant. I bought my Pioneer unit without the Midea module so I could use this one instead. Note, for Pioneer units the USB port has keyways that need to be modified to accept the CloudFree dongle. I bought a second and hope I can get it to work with a Midea window unit I have.

  3. Aaron Z (verified owner)

    Installed in my MRCool DIY-12-HP-C-115B and after initial setup it wouldn’t control the device. But reading other reviews someone mentioned to unplug and replug after setup and then it let me control the unit from web interface and HA. Much nicer than the MRCool dongle that died quickly after 1 year.

  4. Martin Cox (verified owner)

    Works great with Home Assistant and my new Midea U shaped 12k btu ac model MAW12AV1QWT-C. The unit came with a Matter Usb stick, but the functionality was very poor, basically just on off and temperature setpoint. I loaded my own ESPHome yaml config with a static ip address. This was based on the stock config found in the downloads at cfr.ee/ductlesswifi.

  5. Frank Santoro

    Currently using in my Pioneer mini Split and it just works out of the box with Home Assistant. You have to shave down the USB port on the pioneer unit to get the USB to fit but can be accomplished with a pocket knife. As soon as it was configured it was detected in home assistant, then I could expose it to my google assistant so I could have full voice control over a unit that, out of the box, has no smart capabilities. Amazing how easy it went after connecting it. 10/10 would recommend.

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