tonewinner-rs232

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Async Python library to control Tonewinner AV processors over RS232 serial, built on serialx.

Supports the AT-500 specifically, other models should work but haven't been tested. Please open an issue if you encounter problems with other models.

Installation

pip install tonewinner-rs232

Requires Python 3.12+.

Quick start

import asyncio
from tonewinner_rs232 import TonewinnerReceiver

async def main():
    receiver = TonewinnerReceiver("/dev/ttyUSB0")

    # Establish a connection
    await receiver.connect()

    # Query the receiver's current state
    await receiver.query_state()

    print(f"Power: {receiver.state.power}")
    print(f"Volume: {receiver.state.volume}")
    print(f"Source: {receiver.state.source_name}")

    await receiver.power_off()
    await receiver.disconnect()

asyncio.run(main())

Features

Async API built on serialx
Full state query and real-time state updates
Event subscription for state changes
Power, volume, mute, input source, and sound mode control
Automatic framing of the ##...* Tonewinner RS232 protocol
Built-in CLI for testing

CLI

Just prints current state at the moment.

python -m tonewinner_rs232 /dev/ttyUSB0

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