On 18/01/2012 09:07, Sven Geggus wrote: > Stuart Poulton<[email protected]> wrote: > >> Happy to take any feedback > > Why I2C? AFAIK the w1-gpio-custom Kernel driver does provide a 1-wire > Interface on any GPIO Pin which provides w1 compatible Voltage and owfs can > sit on top of this. So at best we will not need any external Hardware at > all. I think Raspberry Pi Board will almost certainly include a Linux GPIO > subsystem compatible aproach for controlling GPIOs.
GPIOs make an easy 1-wire bus, agreed, but they can't drive the 1-wire bus in such a way that it works well on long distances or unusual topologies. Take a look at http://www.maxim-ic.com/app-notes/index.mvp/id/4206 for example. HTH, Chris -- Chris Boot [email protected] Tel: 01271 414100 ------------------------------------------------------------------------------ Keep Your Developer Skills Current with LearnDevNow! The most comprehensive online learning library for Microsoft developers is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, Metro Style Apps, more. Free future releases when you subscribe now! http://p.sf.net/sfu/learndevnow-d2d _______________________________________________ Owfs-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/owfs-developers
