Serin CN105

Firmware and ESPHome configurations for controlling Mitsubishi heat pumps via the CN105 connector.

Contents

• firmware/esphome/ — Pre-built ESPHome firmware binaries (merged, ready to flash)
• firmware/homekit/ — Pre-built HomeKit firmware binaries
• esphome/ — ESPHome YAML configurations using the MitsubishiCN105ESPHome component

Supported Boards

Board	Chip	ESPHome	HomeKit
M5Stack Atom S3 Lite	ESP32-S3	Yes	Yes
M5Stack NanoC6	ESP32-C6	Yes	Yes
ESP32-C3 Mini	ESP32-C3	—	Yes
ESP32 DevKit	ESP32	—	Yes

Installation

Flash firmware directly from your browser at serin-labs.github.io. Connect your board via USB and select ESPHome or HomeKit. Reboot after flashing and follow the WiFi setup instructions.

Related Repositories

Repository	Description
Serin-Labs/serin-labs.github.io	Web installer, setup guides, wiring references, and config generator
akifbayram/mitsubishi-cn105-homekit	Native HomeKit firmware for Mitsubishi heat pumps
echavet/MitsubishiCN105ESPHome	ESPHome CN105 climate platform component