Date: Wed, 6 Aug 2003 10:56:19 +0200 From: patpro <patpro@patpro.net> To: freebsd-hardware@freebsd.org Cc: "Louis A. Mamakos" <louie@TransSys.COM> Subject: Re: temperature acquisition on FreeBSD Message-ID: <D8C40B16-C7EB-11D7-BB40-003065CDEB78@patpro.net> In-Reply-To: <2F06287A-C7BE-11D7-AC8A-0030654D97EC@patpro.net>
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>> 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. If I understand well, you're talking about this device : https://store.ibutton.com/cgi-bin/ncommerce3/ ProductDisplay?prrfnbr=2531&prmenbr=776 But it looks like one can only plug 1 probe, and by the way, I can't find simple temp probes. The starter kit looks good (http://www.ibutton.com/ibuttons/1921Kit.html) but the DS9097U-S09 has no addressable 1-Wire chip onboard. And it seems it uses TMEX driver, so I'm not sure mlan or mlan3 freebsd ports can read data from it. Thermocron looks really good too (https://store.ibutton.com/cgi-bin/ncommerce3/ ProductDisplay?prrfnbr=2438&prmenbr=776) and is apparently supported by mlan : # thermodl usage: thermodl 1wire_net_name <output_filename> </Fahrenheit> - Thermochron download on the 1-Wire Net port ... # thermoms usage: thermoms 1wire_net_name </Fahrenheit> - Thermochron configuration on the 1-Wire Net port ... So now, will TMEX driven hardware work on FreeBSD with mlan ? and does anybody have experience pluging more than one temp. probe on the DS9097U adapter family ? regards, patpro
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