# Control Mitsubishi Heavy Industries air condition units (WF-RAC)?

**URL:** <https://discourse.nodered.org/t/control-mitsubishi-heavy-industries-air-condition-units-wf-rac/76766>\
**Category:** Hardware\
**Tags:** home-assistant\
**Created:** [20 March 2023 18:17 UTC](https://discourse.nodered.org/t/control-mitsubishi-heavy-industries-air-condition-units-wf-rac/76766 "2023-03-20T18:17:23Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Programie](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/programie/32/78606_2.png) [@Programie](https://discourse.nodered.org/u/Programie)\
**Post date:** [20 March 2023 18:17 UTC](https://discourse.nodered.org/t/control-mitsubishi-heavy-industries-air-condition-units-wf-rac/76766/1 "2023-03-20T18:17:23Z")

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Today, I've got a new air conditioning unit from Mitsubishi Heavy Industries. Each indoor unit contains a WiFi module which responds to JSON requests sent as HTTP POST to port 51443 and is usually accessed using the "Smart M-Air" app on a smartphone.  
Unfortunately, the response is encoded in some weird way.

Some guys already implemented controlling the units via [Home Assistant](https://community.home-assistant.io/t/mitsubishi-wifi-module-wf-rac-smart-m-air/411025) and [ioBroker](https://github.com/wolkeSoftware/ioBroker.woso_mitsu_aircon_rac). Unfortunately, I have no experience in writing my own Node-RED nodes. Therefore, my question: Maybe someone already tried to experiment with the API of those WiFi modules or maybe already created something working for Node-RED. At least I couldn't find any nodes yet.

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**Author:** ![Programie](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/programie/32/78606_2.png) [@Programie](https://discourse.nodered.org/u/Programie)\
**Post date:** [1 April 2023 12:59 UTC](https://discourse.nodered.org/t/control-mitsubishi-heavy-industries-air-condition-units-wf-rac/76766/2 "2023-04-01T12:59:44Z")

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I started to write my own node. So if anyone is also interested in controlling that kind of air condition device, you can find it on [GitLab](https://gitlab.com/Programie/node-red-aircon-rac-wf) and in the [npm registry](https://www.npmjs.com/package/@programie/node-red-aircon-rac-wf).

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**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [15 April 2023 13:00 UTC](https://discourse.nodered.org/t/control-mitsubishi-heavy-industries-air-condition-units-wf-rac/76766/3 "2023-04-15T13:00:15Z")

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