Editing Big LED Screen
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= The Big LED Screen = | |||
=== Overview === | === Overview === | ||
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* The 386 connects via ISA to a "buffer board" which looks to be a memory buffer and power conditioner. | * The 386 connects via ISA to a "buffer board" which looks to be a memory buffer and power conditioner. | ||
* The "buffer board" has most traces terminating to a socket with a missing chip, so we don't know what happened here. | * The "buffer board" has most traces terminating to a socket with a missing chip, so we don't know what happened here. | ||
==== Buffer board ==== | ==== Buffer board ==== | ||
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=== Getting the source === | === Getting the source === | ||
The source is in a mercurial repository on [[pony]]. Point your mercurial client at http://pony.local/d3/nils/bigledscreen to pull down a copy of it. | The source is in a mercurial repository on [[pony]]. Point your mercurial client at http://pony.local/d3/nils/bigledscreen to pull down a copy of it. | ||
=== Programming the xbee === | === Programming the xbee === | ||
To control the sign wirelessly, you will want to program an xbee chip to interface with it. I recommend the "xbee explorer" from sparkfun. To program your new xbee, you will need to make sure your xbee has a recent enough firmware (10A5 is recommended). Unfortunately firmware upgrade must be done using Digi/MaxStream's "X-CTU" application which runs under windows | To control the sign wirelessly, you will want to program an xbee chip to interface with it. I recommend the "xbee explorer" from sparkfun. To program your new xbee, you will need to make sure your xbee has a recent enough firmware (10A5 is recommended). Unfortunately firmware upgrade must be done using Digi/MaxStream's "X-CTU" application which runs under windows. | ||
Once you have your xbee connected to your computer, you can use xbee-pgm.pl to set it up to talk to the sign such as the following: | Once you have your xbee connected to your computer, you can use xbee-pgm.pl to set it up to talk to the sign such as the following: | ||
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For further information, UTSL. | For further information, UTSL. | ||