Code Box

CannibalRobotics

The Code Box was built for our "Special Ops" campout for a Boy Scout Troop. It consists of a BS1-USB microcontroller, two LED's and a phototransistor. The box sits in a tree or bush near ground level. The Red/Green LED alternates flashing red or green about once every couple of seconds. This is the 'locator' beacon. Scouts are given a GPS coordinate to locate then a compass heading as a direction to look once they are at the GPS coordinate. When the scout sees the beacon, he shines a LASER pointer at it. This happens at night and it's typically 50-75 yeards away.·The LASER pointer will hit the photo transistor and activate a code transmission. (This code is used by the scout as a combination to open a 'safe'.) On activation, the RG LED will flash quickly a few times then the white LED will emit a coded message in short/long pulses of light. Once that cycle is complete, the box goes dormant for about 2 minutes.

You can see all of it and the code at: http://cannibalrobotics.com/codebox.htm

We've uesd it for years and it's great fun for everyone.

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Send cash and signature to CannibalRobotics.

Chris Savage

Hello,

Please see my first reply in the following thread regarding the Completed Projects Forum. I was out yesterday so I did not get the information listed in this forum as I intended.

http://forums.parallax.com/showthread.php?p=774961

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Chris Savage
Parallax Engineering