Doorhacking

Note: this article is about a passed event.

Doorhacking
From 2010/04/11 13:30:00 to 2010/04/11 23:59:59
Where:
Whitespace Blekerijstraat 75, Gent, Belgium Loading map... Costs 0
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«Let's open the door by using overcomplicated solutions.»

Problem

You are outside, you have a key for the door of the space but no fancy-schmansy garage port opener.

Expected outcome: the door opens.

Events

Day 1

stuff that happened

• A huawei dongle that catches incoming numbers with a python script (see Joren's blogpost)
• Research on the build of the remote, conclusion: "not that simple", result : get a relay over the buttons powered by arduino via a transistor.
• Made schematics for arduino
• An asterisk server that also fetches phonecalls but probably won't be used in this project.

the gameplan

Discussion in the end gave us some idea on architecture:

• Beagle board running linux (B)
• Usb hub (B?)
  • Huawei dongle (J)
  • Usb wifi key / or usb network card (H)
  • Arduino (P) -> Relay -> dooropener (P)

Resources

• one utp cable running from space to appt in front.
• one remote we can hack
• server running in the space
• Random electronics (including an arduino)

Challenges

• Be able to open door by using wifi
• Be able to open door via the interwebs
• Be able to open the door with your cell phone.
• If possible: not necessary to leave a pentium running all the time (power)

Details

Remote

• Main chip : XE34AB / NICE FRO1
  

  

(can't seem to google it... maybe bad eyes)

• The small 8-pin DIP labelled "93LC46" is a 1K EEPROM manufactured by Microchip. (datasheet)

• NEC 2701 is a lowpass filter (datasheet)