| Rian McDonnell 2005-07-08, 4:25 am |
| On Tue, 7 Jun 2005 22:07:55 -0700, "Jvert" <Jhenigin 'at' cawmcast.net
(cawm=com)> wrote:
Look into one wire programming devices and Labjack. The one wire
devices used to be made by Dallas Semiconductor, now I believe carried
by Maxis?
Search on One-Wire weather station for a start. Embedded Data
Systems provides a $15 US RS-232 serial controller chip (HA7S) that
can poll and control up to 255 devices on a two wire bus (ground and
power/data) for basic monitoring and control. One-wire devices
include power controllers, temperature and humidity sensors, A/D
converters, etc. THey are very economical, easy to "interface" via
the HA75, and can use a simple text-based scripting language. Best
part is that many of the devices are in TO-97 or 8-pin flatpacks -
This means that they can be embedde in other items such as
thermostats, etc.
The LabJack device is another method for PC control that is relativly
cheap ($80 US) Pligs into a USB port, adn provides analog and digital
I/O ports on a PC
quote:
>
>"Davester28" <dcmf6adda9for69@hotmail.com> wrote in message
>news:RDJmd.180329$Np3.7279528@ursa-nb00s0.nbnet.nb.ca...
>
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