======  RFM12B-S2 Wireless Transceiver - 434MHz ======

===== doc de ci de la =====
  * https://www.sparkfun.com/products/9582
  * http://jeelabs.org/2009/02/10/rfm12b-library-for-arduino/
  * https://github.com/jcw/jeelib
  * http://openenergymonitor.org/emon/buildingblocks/rfm12b-wireless
  * http://jeelabs.net/projects/cafe/wiki/NRfMon_-_nano_Spectrum_Analyzer_with_the_RFM12B

sous root
<code>
cd /usr/share/arduino/librairies
git clone https://github.com/jcw/jeelib.git
</code>

==== Antennes: ====
  * 433 1/4 wave = 164.7mm
  * 433 1/2 wave = 329.4mm
  * 433 full wave = 692.7mm

  * 868 1/4 wave = 82.2mm
  * 868 1/2 wave = 164.3mm
  * 868 full wave = 345.5mm

antenne fouet
ou autre ? 
   * http://www.roue-libre.be/article.php3?id_article=180 (dans sac)
   * http://www.roue-libre.be/article.php3?id_article=207
======  RFM69CW Wireless Transceiver - 434MHz ======
http://www.digitalsmarties.net/products/rfm-board

  * https://github.com/LowPowerLab/RFM69 pour arduino