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BeagleBone Home Automation Blueprints

You're reading from  BeagleBone Home Automation Blueprints

Product type Book
Published in Feb 2016
Publisher
ISBN-13 9781783986026
Pages 378 pages
Edition 1st Edition
Languages
Author (1):
Rodolfo Giometti Rodolfo Giometti
Profile icon Rodolfo Giometti

Table of Contents (18) Chapters

BeagleBone Home Automation Blueprints
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
1. Dangerous Gas Sensors 2. Ultrasonic Parking Assistant 3. Aquarium Monitor 4. Google Docs Weather Station 5. WhatsApp Laundry Room Monitor 6. Baby Room Sentinel 7. Facebook Plant Monitor 8. Intrusion Detection System 9. Twitter Access Control System with Smart Card and RFID 10. A Lights Manager with a TV Remote Controller 11. A Wireless Home Controller with Z-Wave Index

Setting up the software


This time, to implement the software of this prototype, we can use a state-machine with the following states and their relative transactions:

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State

Description

Actions

Transaction conditions

IDLE

Idle state; the washing machine is not working.

  • LED yellow off

  • LED red off

  • If sound is detected, set t0=t and move state to SOUND.

SOUND

Sound detected! Keep monitoring the environment for a while.

  • LED yellow is blinking

  • LED red is off

  • If sound is detected and t-t0 > timeout, move to RUNNING.

RUNNING

Continuous sound detected so the washing machine has started its job.

  • LED yellow is on

  • LED red is off

  • Alert the user

  • If no sound is detected, set t0=t and move to NO_SOUND.

NO_SOUND

No more sound detected! Keep monitoring the environment for a while.

  • LED yellow is on

  • LED red is blinking

  • If no sound is detected and t-t0 > timeout, move to DONE.

  • If sound is detected, move to RUNNING.

DONE

No more sound for a long delay; the washing machine has finished...