pigsydust 0.5.0

Python library for controlling SAL Pixie BLE mesh wall switches

Pygsydust

A Python library for controlling SAL Pixie / Telink BLE mesh wall switches - fully offline, no cloud, no hub, no app dependency.

Features

• Full protocol implementation - login, session key derivation, AES-CCM encryption/decryption
• Device control - on/off, LED indicator control (blue/orange/purple), find-me blink
• Status monitoring - broadcast queries, real-time push notifications (0xDB/0xDC)
• Cross-platform - macOS (CoreBluetooth) and Linux (BlueZ via raw HCI)
• Home Assistant integration - see ha-pigsydust

Install

pip install pigsydust

On Linux, the process needs CAP_NET_RAW (or run as root / --privileged in Docker) for the raw HCI socket used to receive BLE notifications.

Quick Start

import asyncio
from pigsydust import PixieClient

async def main():
    client = PixieClient("AA:BB:CC:DD:EE:FF")
    await client.connect()
    await client.login("Smart Light", "12345678")

    await client.turn_on(1)

    status = await client.query_status()
    for addr, ds in status.items():
        print(f"Device {addr}: {'ON' if ds.is_on else 'OFF'}")

    await client.disconnect()

asyncio.run(main())

API

Method	Description
connect()	Establish BLE connection (scans on macOS, direct on Linux)
login(name, password)	Authenticate with the mesh
turn_on(addr) / turn_off(addr)	Control a device, group, or broadcast (0xFFFF)
query_status()	Poll all devices and return dict[int, DeviceStatus]
set_led_blue(addr, on)	Toggle blue indicator LED
set_led_orange(addr, level)	Set orange indicator LED brightness (0-15)
set_led_purple(addr, level)	Set purple (both) indicator LED
reset_led(addr)	Clear indicator LEDs
find_me(addr)	Flash device LED for 15 seconds
on_status_update(callback)	Register for real-time push notifications
disconnect()	Disconnect and clean up

Mesh credentials

All nodes in a Pixie mesh share two values:

• Mesh name - typically "Smart Light" (the firmware default)
• Mesh password - the numeric string shown in the Pixie app's "Share Home" screen

Protocol reference

See docs/PROTOCOL-REFERENCE.md for the complete reverse-engineered protocol specification.

License

MIT