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MHI-AC-Ctrl Alternatives
Similar projects and alternatives to MHI-AC-Ctrl
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CodeRabbit
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willow
Open source, local, and self-hosted Amazon Echo/Google Home competitive Voice Assistant alternative
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
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regelwerk
regelwerk: a collection of behaviors (rules) for my MQTT-driven smart home. Published as an example, not as an active project.
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midea-ac-py
Home Assistant custom integration to control Midea (and associated brands) air conditioners via LAN. (by mill1000)
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iot-uni-dongle
An project of universal minimalistic Wi-Fi dongle for various IOT appliances controlled via UART.
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wallbox-mqtt-bridge
MQTT Bridge enables fully local, cloud-free, control of your Wallbox Pulsar Plus and Copper SB
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P1P2MQTT
Monitor and control Daikin/Rotex (hybrid/Altherma) heat pumps via the 2-wire P1/P2 thermostat interface with an ATmega328P, ESP8266, and electronics. The P1P2Serial library and P1P2Monitor program perform low-level bus operation, the P1P2-bridge-esp8266 program interprets data from/to MQTT supporting Home Assistant MQTT discovery. P1P2Serial may also be used for other Japanese Home Bus System based standards: DIII-NET (F1/F2) bus, Mitsubishi M-Net bus, Toshiba TCC-Link, Hitachi H-link, Panasonic
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SaaSHub
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MHI-AC-Ctrl discussion
MHI-AC-Ctrl reviews and mentions
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Air Con: $1697 for an on/off switch
The nice thing about my Mitsubishi Heavy Industry units is I've got a bunch of MHI-AC-Ctrl[1] modules tucked into them talking to the service interface with Home Assistant. The neat thing is it doesn't just control it, it also makes all the internal sensors and codes available.
What I think we really need to do though is make publishing these control standards mandatory under right-to-repair laws - no one should need to be reverse engineering them, you bring a product to market you have to provide the complete spec for it's software interface and data.
Do that, and I bet we'd find in a few years every new appliance would support a common serial port standard and come with a code page in the manual for it (ironically the prevalence of Tuya-smart stuff has come very close to making this happen, but they go to absurd lengths to lock you out of the wi-fi microcontrollers).
[1] https://github.com/absalom-muc/MHI-AC-Ctrl
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Home Assistant 2023.11
Yep, I'm relatively new to Home Assistant but love it. Combined with ESPHome, I've got most of the lights in my house controlled (via switch changes, not smart bulbs), and my all my air conditioners via the MHI-AC-Ctrl project[1,2] (which is fantastic - ordered the boards from JLC-PCB, parts from Ali-Express, told ESPHome to program everything and plugged them into the ports and...it all just worked!).
Just got a Mitsubishi Electric (which is different to MHI) and a Daikin at my parents house to get online - but code for both exists and I suspect the MHI boards can be reprogrammed to fulfill the role without any hardware changes.
It's incredible that the future we wanted in like, 2010 can be had and had without selling your soul to the cloud: I can leave the house, and turn off all my lights and AC's while walking out the door, or get notified if I've left my garage open - without a single cloud provider dependency, all open-source.
[1] https://github.com/absalom-muc/MHI-AC-Ctrl/
[2] https://github.com/ginkage/MHI-AC-Ctrl-ESPHome
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My mini splits run ESPhome now!
https://github.com/absalom-muc/MHI-AC-Ctrl Although Mitsubishi HI (heavy industries) is a different company to Mitsubishi so may not work
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A note from our sponsor - SaaSHub
www.saashub.com | 17 Mar 2025
Stats
absalom-muc/MHI-AC-Ctrl is an open source project licensed under MIT License which is an OSI approved license.
The primary programming language of MHI-AC-Ctrl is C++.
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