[GreenKeys] Heavy Metal

[gil smith]

At 01:42 PM 1/4/02 -0500, you wrote:
>Actually, if the embedded systems get a little cheaper, I sometimes
imagine it
>would be neat to make a little
>embedded box which runs Linux and has a wireless LAN built in, and a TTY
>loop power supply and interface. Putting
>a teletype on the Internet will be so easy that everyone will want to do it!
>No unsightly wires trailing around the house.

Henry:

An embedded linux board would be fun to play with, but my idea of an
embedded system for tty interface is to use a five dollar pic
microcontroller chip.

As for wireless links for low-speed data, we use little inexpensive 433MHz
RF modules in our remotes.  Many manufactures make similar modules on
various license-free freqs.  There are FM versions, but for most
applications the cheaper AM ones are quite good for about 100 feet.  You
can get some good AM versions for ten bucks each (rx and tx) from
radioshack.com:

http://www.radioshack.com/product.asp?catalog%5Fname=CTLG&category%5Fname=CT
LG%5F010%5F016%5F001%5F000&product%5Fid=900%2D6895&MSCSProfile=745D84CBF04D1
4A48AA6FF9C89D722C036698F129F4C93D891A07105F1015CEB4C6BCD8DEC5AE5EA7D4B5B52C
206DE0252D40EE138DC7ADEBA9825156639A336445A36ECC7EE549809D97E519522AA5AA9C61
D0B769C1D9573B591410AC7F8C3C612F4C2E1D081C6EE81BD2570A779FDE0DBBE88208289ABB
99E6B161591180FCF82BA75E1AA4B1D

The link above is a good example of how hack programmers from the microsoft
school have f@#$ed things up today -- there is no excuse for a bizzaro long
link like this.  If this stupid link does not work for you, simply go to
http://www.radioshack.com and search for 900-6895 and 900-6896.

gil


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