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content:meshextender:building_a_prototype [17/12/2012 14:45]
Paul Gardner-Stephen
content:meshextender:building_a_prototype [15/05/2013 15:48] (current)
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 Anyway, the bottom line is that the ISP interface, plus a few IOs should do the trick. SDN (output from daughter board), nIRQ (input to daughter board) and nSEL (output from daughter board) are the ones that would need to come from somewhere other than the ISP port. Thus we need two wires with level conversion.  These are not lines that should require high-speed switching, so a fairly crude solution can be used on those. Anyway, the bottom line is that the ISP interface, plus a few IOs should do the trick. SDN (output from daughter board), nIRQ (input to daughter board) and nSEL (output from daughter board) are the ones that would need to come from somewhere other than the ISP port. Thus we need two wires with level conversion.  These are not lines that should require high-speed switching, so a fairly crude solution can be used on those.
 +
 +See for http://tae09.blogspot.com.au/2012/04/dragrove-daughter-board.html Dragrove daughter board schematic (although annoyingly not as an image).
  
 In addition we need a 3.3v supply line (which is available one the daughter board), and to voltage convert the SPI interface itself.  All rather annoying, and good reasons to use the RFM23BP module which is natively 5v. In addition we need a 3.3v supply line (which is available one the daughter board), and to voltage convert the SPI interface itself.  All rather annoying, and good reasons to use the RFM23BP module which is natively 5v.
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 For this option, we are using a RedArc BCDC-1206 as the quality solution. Basically it takes 9v - 32v and turns it into 12v that can run the Dragino (or be fed into something to charge a battery). For this option, we are using a RedArc BCDC-1206 as the quality solution. Basically it takes 9v - 32v and turns it into 12v that can run the Dragino (or be fed into something to charge a battery).
  
-See also [[content:meshhelper:solar_operation|solar operation]] for more information on this unit, and some low-cost alternatives that we are looking at.  We will work with some of the VillageTelco crew who have been looking at similar battery and solar operation options for the very similar Mesh Potato.+See also [[content:meshextender:solar_operation|solar operation]] for more information on this unit, and some low-cost alternatives that we are looking at.  We will work with some of the VillageTelco crew who have been looking at similar battery and solar operation options for the very similar Mesh Potato.
  
 ==== Solar+Battery ==== ==== Solar+Battery ====
  
-See [[content:meshhelper:solar_operation|solar_operation]] for information on sourcing the components required to create a solar powered prototype.+See [[content:meshextender:solar_operation|solar_operation]] for information on sourcing the components required to create a solar powered prototype.
  
   * Connect the solar panel to the RedArc SRP0120 unit.   * Connect the solar panel to the RedArc SRP0120 unit.

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