New Panasonic PIOT-V2(WA) wifi interface spotted in the wild

[techydude]

I recently bought a Panasonic multi-split RCAC, installed last February 2024 (2x CS-Z25ZKEW inside blowers, & 1x CU-2Z50TBE outside compressor). I'd read about ESPhome/ESP32-based replacements (based on this repo) for the Panasonic DSNK-P11 or a CZ-TACG1, expecting one of them to be in mine. Nope! There's a new cost-reduced wifi interface in town!

Mine has a 'PIOT-V2(WA)' in it, and there appears to be at least one other variant of it 'CA' instead of 'WA'.
(copies of compliance docs here: https://manuals.plus/panasonic/piot-v2wa-wireless-module-manual )

It looks like the attached photo, just a bare board on a plastic mounting frame, with what might be the same 4-wire (grey) interface as its predecessors, but with I think a different connector.

Anyone else aware of this, & tested this firmware on an ESP32 with this newer Panasonic heat-pump model?
If not, I'll give it a go as time permits...

[Smandurlo]

Did you find any other info about it? I am afraid I could have the same controller... And I cannot check it now because they are in another city. I planned to replace them, but I would love not to go there and find a surprice -_-

[techydude]

Unfortunately no, I haven't looked into this any further, yet.
But I'll bump it up my list of projects to try current firmware.

[Smandurlo]

I had the possibility to read a Panasonic manual for that AC and it seems that DSNK-P11 and PIOT-V2(WA) are probably the same or at least interchangeable. DSNK looks like an esp8266 while PIOT an esp32 because it has the BLE and WPA3 (it is in italian, but the tech info are readable). The last sentence says that, more or less, you can use one of them for your AC internal unit and to ask to your retailer.

What do you think?

[Smandurlo]

hey @techydude I found a pic of those Panasonic and guess what? They have the CN-CNT connector too. Check yours! Maybe you can just unplug the piot and go with the other connector! Easy peasy