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content:meshextender:nlnet3 [21/12/2012 11:55]
Paul Gardner-Stephen [B.3. Configure & Test Rhizome on Dragrove Units.]
content:meshextender:nlnet3 [15/05/2013 15:48] (current)
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 A preliminary port of ServalD to OpenWRT has recently been accomplished, therefore this task is not anticipated to be onerous.  The focus will be on familiarising ourselves with the Dragrove hardware, and unit tests to confirm correct operation, and documentation of the build and installation process. A preliminary port of ServalD to OpenWRT has recently been accomplished, therefore this task is not anticipated to be onerous.  The focus will be on familiarising ourselves with the Dragrove hardware, and unit tests to confirm correct operation, and documentation of the build and installation process.
 === Progress / Notes === === Progress / Notes ===
-An customised OpenWRT distribution has been created that includes servald as part of the base firmware.  This is available at http://github.com/servalproject/dragino.  The build process is identical as for any OpenWRT distribution.  See [[content:meshhelper:building_on_openwrt|building on openwrt]] for more detailed information.+An customised OpenWRT distribution has been created that includes servald as part of the base firmware.  This is available at http://github.com/servalproject/dragino.  The build process is identical as for any OpenWRT distribution.  See [[content:meshextender:building_on_openwrt|building on openwrt]] for more detailed information.
  
 WiFi interfaces on the Dragrove are now automatically configured, including random self-allocation of IP address for the mesh interface.   WiFi interfaces on the Dragrove are now automatically configured, including random self-allocation of IP address for the mesh interface.  
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 We are also exploring a lower-cost solution based around a 9.6V LiFePO4 battery pack that could be charged from a 12v supply without an up/down DC:DC converter, for an overall lower cost.  This would be based on low-cost devices obtainable from ebay, for a total build cost of AUD100 - AUD300.  Quality will be uncertain, and the resulting system will probably require more end-user work. Stability of supply of parts is less predictable. We are also exploring a lower-cost solution based around a 9.6V LiFePO4 battery pack that could be charged from a 12v supply without an up/down DC:DC converter, for an overall lower cost.  This would be based on low-cost devices obtainable from ebay, for a total build cost of AUD100 - AUD300.  Quality will be uncertain, and the resulting system will probably require more end-user work. Stability of supply of parts is less predictable.
  
-Part lists and assembly instructions will be collated on the [[content:meshhelper:building_a_prototype|building a prototype]] page.+Part lists and assembly instructions will be collated on the [[content:meshextender:building_a_prototype|building a prototype]] page.
  
 Of course, all of the above is based on prototyping around the Dragrove/Dragino device, which has a power consumption of around 4W, which results in substantially higher costs all round.  The end goal is mobile-phone derived hardware with power consumption between 0.4W and 1W, which will substantially reduce the battery requirements as well as the size and capacity of the charging solutions.  We still anticipate that a final solution (minus solar charging option) could cost under AUD100. Of course, all of the above is based on prototyping around the Dragrove/Dragino device, which has a power consumption of around 4W, which results in substantially higher costs all round.  The end goal is mobile-phone derived hardware with power consumption between 0.4W and 1W, which will substantially reduce the battery requirements as well as the size and capacity of the charging solutions.  We still anticipate that a final solution (minus solar charging option) could cost under AUD100.
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 ===== Block C – Point-to-Point Long-Range UHF Packet Radio ===== ===== Block C – Point-to-Point Long-Range UHF Packet Radio =====
  
-Not yet commenced.+Implemented using RFD900 radios and FTDI 3.3v TTL USB:serial adaptors and OpenWRT running on TP-Link WR703N devices, as described on the prototyping page. 
 + 
 +Tested at KiwiEx 2013, and shown to mesh over >3km with good line of sight and low noise floor. 
 + 
 +See http://servalpaul.blogspot.co.nz/2013/02/3km-mesh-link-using-mesh-helper.html and http://servalpaul.blogspot.co.nz/2013/02/mesh-link-using-our-prototype-mesh.html for more details. 
 + 
 +Work unit complete.

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