Device Control

Demonstrate how to control an IoT device like a lightbulb. The dashboard UI is bound to the device's properties and events, allowing real-time interaction and logging.

Key Concepts

Events: Device emits power_changed, brightness_changed, and log_message events
Properties: Pythonic read and write access, lightbulb.power = True and lightbulb.brightness = 75
Reactive UI: UI subscribes to events and updates automatically
Autonomous Behavior: Device logs heartbeat every 10 seconds when powered on
Clean Separation: Device logic independent from UI code

Usage

python

# Create device
lightbulb = Lightbulb()

# Control via properties
lightbulb.power = True
lightbulb.brightness = 75

# Subscribe to events
lightbulb.power_changed.subscribe(handle_power_change)
lightbulb.log_message.subscribe(log.push)

Running

bash

python main.py

Turn on the lightbulb to see autonomous heartbeat logging.

Use Cases

Ideal for IoT devices, smart home controls, industrial equipment, robotics, and hardware interfaces where you need event-driven communication between device logic and UI.