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Doorbell

Very straightforward implementation:

  • A ring the bell button on https://hackerspace.gent/landing/contact.php that writes a file on disk containing a timestamp
  • A cronjob on the Pi (pi@10.51.3.195) that is connected to the flappers that checks every x amount of seconds if a new file is written
  • When an updated timestamp if found, instruct the flappers