solarwind escreveu:
> On Sun, Apr 26, 2009 at 11:05 PM, Isaac Marino Bavaresco
> <isaacbavaresco@yahoo.com.br> wrote:
>   =

>> How about RS-485 ?
>> Or even half-duplex RS-232 with a diode in each TX output and a
>> pull-down to V- ?
>> Or the very inexpensive 433MHz RF modules ?
>>     =

>
> Where can I get the 433MHz modules?
>   =

I found this link: <http://www.hobbyengineering.com/H2251.html>

These are the same modules I used already, but this shop is expensive.
You should find the same modules by a fraction of this price.

Regards,

Isaac

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