Python Library for Flexit CI66 (async)

Async helper library for controlling Flexit A/C units over the CI66 Modbus adapter, built on top of pymodbus's async clients.

This is an async fork of Sabesto/pyflexit, updated to work with modern (3.x) pymodbus, which dropped the synchronous client API this library originally relied on.

Supports both Modbus TCP and Modbus RTU over a serial/RS-485 connection.

import asyncio

from pyflexit import Flexit


async def main() -> None:
    # Serial (RS-485) connection:
    unit = Flexit(21, serial_port="/dev/ttyUSB0")
    # Or a Modbus TCP gateway:
    # unit = Flexit(21, host="192.168.1.50")

    await unit.connect()
    try:
        await unit.update()

        print(unit.current_temperature)
        print(unit.target_temperature)
        print(unit.filter_hours)
        print(unit.operation)
        print(unit.fan_speed)
        print(unit.heat_recovery)
        print(unit.heating)
        print(unit.heater_enabled)

        await unit.set_fan_speed(3)
        await unit.set_temp(11)
    finally:
        unit.close()


asyncio.run(main())

See example.py for a more complete example.