home *** CD-ROM | disk | FTP | other *** search
- Path: sparky!uunet!paladin.american.edu!howland.reston.ans.net!usc!rpi!batcomputer!munnari.oz.au!manuel.anu.edu.au!coombs!mark
- From: mark@coombs.anu.edu.au (Mark)
- Newsgroups: alt.hackers
- Subject: How I spent 7 days jacked into the kitchen clock
- Date: 4 Jan 93 07:55:15 GMT
- Organization: Australian National University
- Lines: 53
- Approved: Not on your life buddy!
- Message-ID: <mark.726134115@coombs>
- NNTP-Posting-Host: 150.203.76.2
- Keywords: tick tock
- Organisation: Wassat?!
-
- 'lo netters,
-
- As you all know we just had a Xmas and NY zip by us, for better or worse.
- Unfortunately a lot of Uni's here in aussie decide that it's time to give
- their unix machines a rest and turn them off over the break. The end result
- of this is a lot of wailing no-life students were left out in the cold.
-
- Anyway because of the lack of telnet access even I was reduced to sitting
- on an annex and connecting direct to the IRC server and getting my fix from
- it for seven days. Today I had to counsel my brain to stop typing in 'raw'
- irc mode and use the pretty doovy client properly.
-
- The IRC server needs it's connections to be active every 90 seconds or it
- gives you the big bye bye. Since I just have a 'dumb' terminal and no
- way of driving a CPU to do anything intelligent I couldnt write a program
- to do the polling for me. I was losing $$$ in phone calls and getting
- slightly cheesed so basically I went looking and found in the kitchen my
- flatmates clock >:). After absconding with said clock I preceeded to dismantle
- my keyboard, with all it's 50 screws, trace the pads to the mylar edge
- edge connectors and run two wires out of the socket, all without loosing the
- connection. (I was pressing the key upside down or on the pad direct to
- ping back to the server)
-
- Next trick was to set up the clock. That required trimming some wire down
- to just one single solitary strand and wrapping it around the moving second
- hand to extend it two more inches to the edge of the clock face. There
- fixed with blu-tak (a chewing gum substitute) was another single strand that
- was bent so the wire on the second hand climbed a few millimeters of plastic
- insulation before falling onto the wire, running up it on a gentle slope and
- then dropping away to complete another revolution.
-
- Thus, once I was connected up, (and fortunately the kb had enough sensitivity
- to sit in my lap in bed a comfortable 3 meters away), I had a precision (hah!)
- means of generating the needed pulse every minute. The key I chose was a
- function key which I could program with any string, in this case 'ping me'.
-
- This worked well for a day until you guessed it, the bloody battery died.
- (Thanks Murphy). Anyway I decided to do it properly and installed a little
- 3.5mm socket into the side of the keyboard so I could jack the 'circuit'
- in and out at will. I then could close up the keyboard again too :).
-
- All in all it worked quite nicely and I shall remember it next time McGyver
- and I have to defuse a nuclear bomb before it causes the Hoover dam to burst
- and kills 40 million people on Xmas eve. :) What I intend doing is to wire
- up a 555 timer chip with some other oddments and have a little box I can
- attach to the edge of the keyboard which has selectable times from shorted
- links. Maybe rest the timer every time a key is pressed. But thats another
- hack...
-
- Hacky new year!!!
-
- Mark
- mark@coombs.anu.edu.au
-