It could be an idea, but I already have my MIM dongle and successfully capturing the communications between the original dongle and the AC.
The big issue is that the original dongle is not actually a USB device, they chose to use a USB-A connector, but the signaling is actually TTL level. I chose to use an ESP32E processor in order to support ESPHome, and enable Bluetooth provisioning of WiFi for ease of installation. I am about 80% complete now. Soon I will be looking for volunteers for testing.
Alas, I tried connecting the homemade dongle with the standard one, but it didn’t work. They conflict with each other. If Dave solves this issue, it can be considered a victory over the corporation TCL)))
"I will gladly participate in testing. I hope the article I referenced above will make it easier to complete your project, and we all get a finished solution without compromises. Good luck, Dave.
Replacement dongle built and being tested now. So far, only 1 small issue that was pretty easy to resolve. Works well with my aircon. If your aircon has this dongle:
If your dongle model number matches and you would like to help test then DM me (and also include your country so that I can check on shipping availability).
Already regretting buying TCL for the lack of HA integration. TAC-12CHSD/FBI are not available for Tuya pairing only TCL Home app. Anyone managed to add these?
Hi dave, I would also like to be a beta user, I have the same wifi stick and would like to try it out with the esp for HA, would be great if I get an answer from you, best regards
Edit: After checking the artical mentioned by sorz2122 below > Tcl home integration - #53 by sorz2122
Looks like TCL is not using standard USB-A pinouts at all, just the USB-A connector.
Hey folks, I found a Russian repo that works with my TCL 12-CHDA. All you need is an ESP32 and a USB-A plug. You can also just take a USB cable, cut it, and solder it on. I’ve done a rough translation of the repo into German using AI and forked it. Here’s the link. Have fun tinkering!
Finally, the wait is over!!!
Now there’s a way to add a TCL air conditioner, which works with the official TCL Home app, into Home Assistant using the standard Wi-Fi dongle.
Recently, the TCL Home “skill” in the Yandex Smart Home ecosystem was updated, and now it supports air conditioners.
The instructions will work provided that Yandex resources are accessible in your country. If not, experiment with a VPN.
After selecting the TCL Home “skill,” enter the credentials for your TCL Home account.
Your air conditioner should then appear in the “Home with Alice” app.
I feel strange about installing and using an app on my phone where I don’t understand any of the words on buttons I’m pressing.
Is this the only app that the Yandex stuff works through?