Smart Home Hub

PythonAdvancedabout 7 hours14 lessons

Recommended first: Cargo Bay

You are the brain of a house. Describe its devices, give them a contract, pass behaviour around as functions, then let a real event bus tie sensors, lights, locks and a thermostat together. By the end, rules like "motion after sunset turns the hall light on" run on code you wrote, and an automation panel shows which rule fired and why.

Start the first lesson

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Learning path

Each lesson adds one working part to your build.

Chapter 1

Blueprint

Model the house with enums and dataclasses, then give every device a contract.

0/4 done

Describe the house
15 min90 XPAdds Floor plan
Start
Devices and the Device contract
20 min120 XPAdds Smart lights
Polymorphism: one call, many devices
18 min110 XPAdds Door lock, Thermostat
Protocols: interfaces by shape
20 min130 XPAdds Motion sensors, Speaker & blinds

Chapter 2

Delegates

Functions are values: pass them, store them, return them, wrap them.

0/4 done

Functions as values: your first delegates
22 min140 XPAdds Routines
Callbacks and lambdas
20 min130 XPAdds Traffic map
Closures and function factories
22 min150 XPAdds Scenes
Decorators: logging, timing, retry
25 min160 XPAdds Audit trail

Chapter 3

Observer

Build an event bus so the house reacts without everything knowing everything.

0/3 done

The observer pattern: an event bus
28 min190 XPAdds Event log
A bus that survives: failures and leaks
28 min190 XPAdds Dead letters
Wiring the house to the bus
22 min160 XPAdds Live wiring

Chapter 4

The brain

Inject dependencies, stream events lazily, and compose rules into automations.

0/3 done

Dependency injection: clock, daylight, phone
25 min180 XPAdds Phone & clock
Generators and iterators: lazy event streams
25 min180 XPAdds Timeline filters
Automations: rules from everything you built
35 min260 XPAdds Automations

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