temperature acquisition on FreeBSD

[Louis A. Mamakos]

> On mardi, aoû 5, 2003, at 18:07 Europe/Paris, Jim King wrote:
> 
> > I use one of these:  http://www.spiderplant.com/hlt/index.html  to run 
> > seven probes around my house.  Unfortunately, they're no longer being 
> > manufacturered, but it might give you some ideas on what to look for, 
> > or how to build your own.
> 
> too bad they don't make them any longer. It's exactly what I'm looking 
> for. Thanx for the link.

I also have a couple of the spiderplant boxes, and 12 probes scattered
around the house.  Over the last 4 or 5 years, I've accumulated more
than 6 million temperature measurements in a MySQL database.

What I would do today is continue to use the Dallas Semiconductor
temperature probe devices and just drive them from the Dallas 
1-wire to RS-232 serial port adapter.  You'll need some additional
software to discover, address, fetch and convert measurements from
each of the probes as compared to the Spiderplant box.  

As far as software, you can start with /usr/ports/comms/mlan or
/usr/ports/comms/mlan3 to talk to the adapter.

louie