Ben NanoNote

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[[File:Nanonote rfm12.jpg|800px]]
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The wiring I used to get the rfm12 module working on the Ben NanoNote, and for which the provided kernel patch can be used without further adjustments, is the following.
 
The wiring I used to get the rfm12 module working on the Ben NanoNote, and for which the provided kernel patch can be used without further adjustments, is the following.
  

Revision as of 20:57, 5 December 2011

Nanonote rfm12.jpg

The wiring I used to get the rfm12 module working on the Ben NanoNote, and for which the provided kernel patch can be used without further adjustments, is the following.

 GPIO | PIN on SD port | PIN on module | purpose / description
 =====|================|===============|=================================
 108  | D12 (1)        | MISO / SDO    | SPI: master input slave output
 109  | D13 (2)        | nIRQ          | interrupt
 104  | D08 (3)        | (unused)      | (unused)
 X    | VDD (4)        | VDD           | power
 105  | D09 (5)        | MOSI / SDI    | SPI: master output slave input
 X    | VSS (6)        | GND (1+2)     | ground
 106  | D10 (7)        | SCK           | SPI: clock
 107  | D11 (8)        | nSEL          | SPI: chip select

There needs to be a resistor (10-100kOhm) between pin FSK (if used) of the rfm12 module and VDD as pullup – however when just using ASK it isn’t needed anyway.

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