echavet/MitsubishiCN105ESPHome
ESPHome firmware inspired by GeoffDavis’s esphome-mitsubishiheatpump, directly integrating the SwiCago library within its codebase. observed · 2026-10-13
Health v2 · maintenance only
85/100
- Activity 98
- Release rhythm 75
- Longevity 74
Flags: no_license
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-10-21. Adoption (stars, forks) is never an input.
- gap_med: 5
- age_days: 1046
- days_rel: 171
- days_push: 14
- n_releases_24m: 18
Adoption not part of the score
1140 stars · 199 forks observed · 2026-10-13
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
ESPHome custom component/firmware for ESP32/ESP8266 that lets a microcontroller talk to Mitsubishi heat pumps and air conditioners over the CN105 UART connector. It integrates the reverse-engineered SwiCago HeatPump protocol directly into ESPHome, enabling local control via Home Assistant, a built-in web interface, or MQTT.
Use cases
- control a Mitsubishi heat pump locally without the vendor cloud
- integrate a Mitsubishi mini-split with Home Assistant over WiFi
- set temperature setpoints and vane direction on a CN105-equipped unit
- use a remote temperature sensor for more accurate thermostat control
- monitor compressor frequency and unit status via MQTT
- replace the official Mitsubishi WiFi adapter with a self-hosted option
When to choose
- you own a Mitsubishi heat pump/AC with a CN105 port and want fully local, cloud-free control
- you already use Home Assistant or ESPHome and want a native climate entity
- you want finer control and remote-temperature features for comfort or energy efficiency
- you're comfortable flashing firmware and doing basic soldering/wiring
When to avoid
- you want an officially supported, plug-and-play WiFi solution (use Mitsubishi's commercial adapter)
- your unit lacks a CN105 connector or doesn't support the reverse-engineered protocol features
- you can't or don't want to open the indoor unit and wire an ESP board
- you need guaranteed vendor support or warranty-safe modification
Facets
application · maturity active
iot embedded middleware configuration-management iot self-hosted hardware iot esphome mitsubishi heat-pump hvac cn105 home-assistant mqtt esp32 esp8266 smart-home local-control reverse-engineered-protocol swicago thermostat automation wifi uart c++ esp-idf
1 source
- readme: https://github.com/echavet/MitsubishiCN105ESPHome · fetched 2026-10-13 · da1252fdc9c3
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| echavet/MitsubishiCN105ESPHome | main | 85 |
For agents
markdown · JSON · MCP: product_card(name="echavet/MitsubishiCN105ESPHome")
Data as of 2026-10-19T08:05:51.212177+00:00 · Report a problem