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Clicking a button on the oven starts its preheating. When the oven has finished, it notifies the home owner with an alert on a speaker.

Oven node:

• button click starts oven preheating
• when starting preheat sends a broadcast to speakers to prepare for alarm
• preheating lasts an amount of time (arbitrary)
• when preheating is over, it sends a broadcast to speakers to turn on alarm
• button click turns off the oven
• stops timer if it didn't trigger yet
• sends broadcast to speakers to turn off alarm

Speaker node:

• no button functionality
• red blinking led when alarm is triggered
• blue led when waiting the trigger
• all leds off when oven is turned off

1. When you press play, dim the lights gradually over 7 seconds.
2. When you press pause, bring the lights up by 30%.

Home teather node:

• button click switches between play and pause
• double click stops the movie
• if stopped red light on, off otherwise
• if paused blue light on, off otherwise
• if playing green light on, off otherwise
• when switching, send a message to room light node to inform of new state

Light node:

• button click switches between on and off
• when play message arrives, if light on, lower it to 10%
• when pause message arrives, if light on, bring it up to 30%
• when stop message arrives, if light on, bring it up to 100%