Anyone tried this on the Bosch units? Their WiFi module comes as an addon too.
Research it with an LLM. I've ordered all the stuff for Panasonic and Daikin after a deep planning session. It told me what connectors I need that Panasonic needs a level shifter. Both brands have open source libraries for the internal protocols and wiring. I wanted Zigbee so the ESP32 C6 was the way to go. The Panasonic units I have already have Wifi but most companies suck at this kind of thing. I couldn't get the…
I added a non-wi-fi Mitsubishi AC to Home Assistant
101–107 of 107 posts
Re: I added a non-wi-fi Mitsubishi AC to Home Assistant
#102This seems to be better featured than ir blasters like Tado Smart AC Control (which is not bidirectional)
Re: I added a non-wi-fi Mitsubishi AC to Home Assistant
#103I’ve been working on a similar setup using the M5Stack NanoC6 and AtomS3 Lite, and put together a parts list and wiring guide on my site: https://serin-labs.com/parts.html . I also built a web flasher with firmware configured for those boards, so you can install directly from your browser without any fiddling or configuring. The ESPHome option uses the same echavet/MitsubishiCN105ESPHome project mentioned in the arti…
That’s incredible.
I have an airtouch which I love but my parents have a Mitsubishi system that I’m fairly sure would be compatible, and a large floor space to manage.
Apologies for the question, but for multi zone, you mention that the controller can pick up temperature. My understanding was that temperature is only captured at the intake, not in zones? (I’m familiar with airtouch where I have ?BTLE temperature sensors in the rooms/zones that are paired to my system). But how does this work with a Mitsubishi zoned system? Or am k over-reading the capabilities. (Or is it a similar deal, I just haven’t seen where to acquire these zone temp sensors from)
Re: I added a non-wi-fi Mitsubishi AC to Home Assistant
#104This is kinda unrelated but I learned while researching for my new AC that there are two Mitsubishi brands/companies, one is Mitsubishi Electric and the other is Mitsubishi Heavy Industrial. And their ACs are not the same, so just saying Mitsubishi AC probably could lead to problem. The one OP has is Mitsubishi Electric by the first photo.
While reading this thread I noticed many have Mitsubishi HVAC while I'm the oddball with an Hitachi HVAC (which now belongs to Bosch [1]).
Re: I added a non-wi-fi Mitsubishi AC to Home Assistant
#105These mini split inverter units seem to be good for +/- 1 C, but the 2 C swing can feel quite substantial. PID control seems to be lacking overall, the control laws seem to be more basic. In particular, my unit waits until temperature deviation from setpoint exceeds 1C before cycling on. If I want finer control, there are a few options I can think of: 1. Spoof the temperature, add a TEC , heater, cooler or something…
Is your unit one of the ubiquitous Midea rebadges? Or at least one where the remote does 'follow me' type periodic, remote temp reporting? If so, you're right, the easiest way is to build/buy an IR blaster module for a microcontroller (ESP32 if you want wifi) and connect a temperature sensor. HA/EspHome is overkill for this, but can be useful for the large catalog of pre built integrations. Most of them are built usi…
>Mapping out your own PID correction algorithm
I want to do this but I'm worried about stressing the compressor with extra start/stop cycles would shorten its lifespan. Maybe they are programmed to overshoot/undershoot the set temp to prolong lifespan?
Disclaimer: I know next to nothing about how ACs work beyond the very basics.
Re: I added a non-wi-fi Mitsubishi AC to Home Assistant
#106I’ve been working on a similar setup using the M5Stack NanoC6 and AtomS3 Lite, and put together a parts list and wiring guide on my site: https://serin-labs.com/parts.html . I also built a web flasher with firmware configured for those boards, so you can install directly from your browser without any fiddling or configuring. The ESPHome option uses the same echavet/MitsubishiCN105ESPHome project mentioned in the arti…
That’s incredible. I have an airtouch which I love but my parents have a Mitsubishi system that I’m fairly sure would be compatible, and a large floor space to manage. Apologies for the question, but for multi zone, you mention that the controller can pick up temperature. My understanding was that temperature is only captured at the intake, not in zones? (I’m familiar with airtouch where I have ?BTLE temperature sens…
Thanks! I just took a look at AirTouch. It seems they have a nice ecosystem. Their Mitsubishi Electric offerings [1] use the CN105 port (like the OP's device).
I use the word zones on the Serin Multi Zone product page but it's interchangeable with indoor units. One indoor unit equals one zone.
You can override the room (intake) temperature per indoor unit/zone using a controller plugged into the CN105 port (like the OP wrote about). Depending on the controller, it can pair with a Bluetooth sensor or listen to any other type of sensor from Home Assistant. By going the ESP32 path, you can use simple, off the shelf $10 BLE sensors.
The Serin multi zone controller uses the centralized communication bus which isn't capable of overriding the indoor unit's room (intake) temperature. But if that is a must (which it is for ducted units), you can have both the multi-zone controller and a controller at every indoor unit without issue. So if you have an MHK2 thermostat on the wall and don't want to use their Kumo app anymore, the Serin multi zone controller will give you local control and you'll be able to retain the remote temperature sensor from the MHK2 thermostat.
[1] https://theairstore.com.au/product/airtouch-gateway-mitsubis...
Re: I added a non-wi-fi Mitsubishi AC to Home Assistant
#107This is kinda unrelated but I learned while researching for my new AC that there are two Mitsubishi brands/companies, one is Mitsubishi Electric and the other is Mitsubishi Heavy Industrial. And their ACs are not the same, so just saying Mitsubishi AC probably could lead to problem. The one OP has is Mitsubishi Electric by the first photo.
While reading this thread I noticed many have Mitsubishi HVAC while I'm the oddball with an Hitachi HVAC (which now belongs to Bosch [1]). [1] https://en.wikipedia.org/wiki/Johnson_Controls_Hitachi
Ha, I’m having the Hitachi as well