one wire sensors
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Posted by Jeff on July 6, 2007, 9:12 am
Please log in for more thread options with some kind of home automation. I'd like to be able to track temp and humidity in various parts of the house also. I have some knowledge of programming, electronics and making circuit boards for that matter (not that I want to make any circuit boards)! Not knowing much about this, here is what I'm thinking and please feel free to tell me what is crap! I've seen these one wire sensors. That would seem to me the way to go but I'm unsure how this interfaces with the automation. How does this work? Can this be interfaced with any of the STAMP modules that are available? The way I picture this is that one wire sensors feed the STAMP (or other automation control) and that is interfaced to a home PC. Is that about right or are these things best done otherwise? How is the programming handled? I've seen mention of Ada and C on the STAMP level. Jeff | |||||||||||||||||||||||||||||||||||||||||||||||||
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Posted by Marc_F_Hult on July 6, 2007, 4:26 pm
Please log in for more thread options I'd be wary of _depending_ on Dallas / Maxim 1-wire for new applications. The Applications Engineer for the 1-Wire and iButton Groups wrote me : " It is correct that the DS2890 was recently assigned a NRFND status. Our customer base on this product is very small and ongoing R&D investment is large and prohibitive to convert the 6" wafer based design to an 8" wafer equivalent that is necessary to continue production in our wafer fabs. Our EOL strategy for this device is to build a supply of product that will provide a 5yr to 7yr supply to existing customers. " Nonetheless, I've developed a family of pcboards that provide signal conditioning, power supply and analog, digital, and 1-wire connectivity for what I call THOL (Temperature, Humidity, Occupancy and Lighting). They are designed to fit in single gang switch box for wall or ceiling mounting, are connected to a multiplexor at one or more central locations for logging via DMX, 1-wire and PC-PCI 16-bit AD converters. I expect the first boards back in a week or so. If I like the prototypes, I may put together a large order. Most HA systems are not very good at data logging (checking, interpreting, representing, and storing data). This system is designed to address that need in a robust and redundant way. I'll post more later to my web site ... Marc Marc_F_Hult www.ECOntrol.org | |||||||||||||||||||||||||||||||||||||||||||||||||
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Posted by Robert L Bass on July 7, 2007, 12:46 pm
Please log in for more thread options > ... I've developed a family of pcboards that provide signal
> conditioning, power supply and analog, digital, and 1-wire > connectivity for what I call THOL (Temperature, Humidity, > Occupancy and Lighting). They are designed to fit in > single gang switch box for wall or ceiling mounting, are > connected to a multiplexor at one or more central locations > for logging via DMX, 1-wire and PC-PCI 16-bit AD > converters. I expect the first boards back in a week or so. > If I like the prototypes, I may put together a large order. Marc, Are you planning to market these? If so, please give me a call. -- Regards, Robert L Bass =============================>
Bass Home Electronics
941-925-8650 4883 Fallcrest Circle Sarasota · Florida · 34233 http://www.bassburglaralarms.com =============================>
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Posted by Marc_F_Hult on July 10, 2007, 5:16 pm
Please log in for more thread options
>> ... I've developed a family of pcboards that provide signal
>> conditioning, power supply and analog, digital, and 1-wire >> connectivity for what I call THOL (Temperature, Humidity, >> Occupancy and Lighting). They are designed to fit in >> single gang switch box for wall or ceiling mounting, are >> connected to a multiplexor at one or more central locations >> for logging via DMX, 1-wire and PC-PCI 16-bit AD >> converters. I expect the first boards back in a week or so. >> If I like the prototypes, I may put together a large order. >
>Marc, > >Are you planning to market these? If so, please give me a >call. Alas, I don't have a commercial bone in my body ;-) This is mostly a hobby for me. Thanks anyway ... Marc Marc_F_Hult www.ECOntrol.org | |||||||||||||||||||||||||||||||||||||||||||||||||
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Posted by Robert L Bass on July 11, 2007, 12:39 am
Please log in for more thread options >>> ... I've developed a family of pcboards that provide signal
>>> conditioning, power supply and analog, digital, and 1-wire >>> connectivity for what I call THOL (Temperature, Humidity, >>> Occupancy and Lighting). They are designed to fit in >>> single gang switch box for wall or ceiling mounting, are >>> connected to a multiplexor at one or more central locations >>> for logging via DMX, 1-wire and PC-PCI 16-bit AD >>> converters. I expect the first boards back in a week or so. >>> If I like the prototypes, I may put together a large order. >>
>> Are you planning to market these? If so, >> please give me a call. >
> Alas, I don't have a commercial bone in my > body ;-) This is mostly a hobby for me. Too bad. You might be sitting on a gold mine. -- Regards, Robert L Bass =============================>
Bass Home Electronics
941-925-8650 4883 Fallcrest Circle Sarasota · Florida · 34233 http://www.bassburglaralarms.com =============================>
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>with some kind of home automation. I'd like to be able to track temp and
>humidity in various parts of the house also. I have some knowledge of
>programming, electronics and making circuit boards for that matter (not
>that I want to make any circuit boards)!
>
> Not knowing much about this, here is what I'm thinking and please
>feel free to tell me what is crap!
>
> I've seen these one wire sensors. That would seem to me the way to go
>but I'm unsure how this interfaces with the automation. How does this
>work? Can this be interfaced with any of the STAMP modules that are
>available?
>
> The way I picture this is that one wire sensors feed the STAMP (or
>other automation control) and that is interfaced to a home PC. Is that
>about right or are these things best done otherwise?
>
> How is the programming handled? I've seen mention of Ada and C on the
>STAMP level.
>
> Jeff