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Programming languages map: (old_sci_am_archive#2)

"... this fog bank is always present, hiding the exotic and mysterious jungles of Lisp."

[courtesy of Carl Helmers and Robert Tinney - Byte magazine August 1978]

Zigbee: Atmel chip AT86RF230 (scrying_tech_notes#9)

xbee module also:

http://www.maxstream.net/products/xbee/xbee-oem-rf-module-zigbee.php

and:

http://itp.nyu.edu/~raf275/meshnetworking/XBee/XBee_example.html

http://mrtof.danslchamp.org/AXIC - Arduino Xbee Interface Circuit

Note also 3v parts: Atmega8L is 3v version (or use 168 part and in case of Arduino Bluetooth (3.3v and 5v needed use of MAX1676 DC-DC convertor and MC33269D-3.3 regulator)