Dear All, i just read the wohle thread, well there are of course thousand ways to make sensors wireless ;)
According to 6lowpan, i would like to mention the Open Source Domotics Group where i am member ;) Basically the OSD-Groups aims to provide open and standards compliant domotic solutions. the benefits are (as Michael already stated): its open and standardized by ietf ;) we are currently doing development based on contiki-os. there actually is hardware (6lowpan router, breakout board, usb stick, wall wart, light actor, etc) already existing and supported in contiki os. my initial plan was to go over owfs -> coap -> 6lowpan -> sensor hardware -> 1wire device to directly read the 1wire sensors using bit-bang hardware ... this however needs to implement all kinds of 1wire communication in the wireless board and leaves little to be done at the owfs level ... however, as i just put in support for a 1wire - rs485 converter into owfs, i think it definitely could be possible (and even cheaper) to support a ds2480 which is connected via coap within owfs ... however, some features of coap are more work ... e.g. it is also possible to "observe" some reading and get notified when it changes - good for powersaving ... but hard to implement in owfs (needs a seperate coap server running in the background) i think the better route would be to have a domotics system reading either owfs and coap sensors (linke openhab or linknx/webknx) according to the osd-contiki fork, there is already support in our contiki-os fork for the breakout board and a bit-banged ds1820 ... however, to become a real open and standards compliant wireless 1wire device it would need more logic in the wireless node to support more 1wire devices ... maybe it would be a way to have two possibilities, either 1wire device support, where you only query e.g. the temperature value via coap - in this case you can use the observer feature and it will be very power saving ... and on the other hand have support for a "wireless ds2480" which is not very power saving ... but supports all 1wire devices ... if you are interested, please take a look at http://www.osdomotics.com/ and the wiki http://osdwiki.open-entry.com/ the contiki-os fork is on github https://github.com/osdomotics but be prepared that most of the entries are in german ... ,) regards, marcus. On 12/23/13 23:14, Michael Markstaller wrote: > On 23.12.2013 22:08, Colin Reese wrote: >> Based on what I've seen so far, it seem as though XBee is a very good >> option. It's a well-developed standard, and with nice mesh-networking >> capabilities. > Just my 2ct: Zigbee is closed and proprietary (but, well: it works here > and now!) > Looking a little beyond, I'd prefer 6lowpan, basically the same using > 802.15.4 but open .. > > Michael > > > ------------------------------------------------------------------------------ > Rapidly troubleshoot problems before they affect your business. Most IT > organizations don't have a clear picture of how application performance > affects their revenue. With AppDynamics, you get 100% visibility into your > Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro! > http://pubads.g.doubleclick.net/gampad/clk?id=84349831&iu=/4140/ostg.clktrk > _______________________________________________ > Owfs-developers mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/owfs-developers > ------------------------------------------------------------------------------ CenturyLink Cloud: The Leader in Enterprise Cloud Services. Learn Why More Businesses Are Choosing CenturyLink Cloud For Critical Workloads, Development Environments & Everything In Between. Get a Quote or Start a Free Trial Today. http://pubads.g.doubleclick.net/gampad/clk?id=119420431&iu=/4140/ostg.clktrk _______________________________________________ Owfs-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/owfs-developers
