From Whitespace (Hackerspace Gent)
Revision as of 09:18, 18 June 2010 by (Talk)

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Gatekeeper is a Python script that opens a gate when calling to +32493604143. It only opens the gate for whitelisted numbers. The hardware used:

  • A beagle board with a Debian based distro on, kindly donated by Bert.
  • A remote controller for the gate connected to the beagle board. The pinout on the beagleboard towards the remote:
    • Pin 28: black
    • Pin 24: white
    • Pin 1 (bottom): red
  • A Huawei e220 GSM modem with a SIM card to perform caller ID. It is connected with the board using USB-serial.

Configuring Gatekeeper

The gatekeeper script can be found at /home/ubuntu/gatekeeper/ and is started at boot.

  1. setup logging

LOG_FILENAME = 'gatekeeper.log' FORMAT = "%(asctime)-12s: %(levelname)-8s - %(message)s" logging.basicConfig(filename=LOG_FILENAME,level=logging.DEBUG,format=FORMAT) log = logging.getLogger("GateKeeper")

The whitelist file can be found Whitelist syntax

098098987 name 080989790 other name

Connecting to the BeagleBoard

The beagle board runs a debian based distro so it can be used as a general purpose server. If you want to do something with it ask for a login and sudo rights. Connecting with the board is possible using ssh. Internally it has as IP address.

Ideas, Feedback & Comments

Add your own!

  • We can make the door opening for all people on Thursday, and only for members on the others...? @Joren: Is this pythonable?
    • Something like that has been implemented: adding an empty line with * to the whitelist puts the script in public mode. In public mode everyone is allowed to open the gate when calling +32493604143. Removing the line with the wildcard puts the script in private mode, then only whitelisted members can open the gate.
  • We can sound a alarm when people try to open the door but are not allowed.