====== Development of a 6LoWPAN sensor node ======

It is the goal to develop a versatile, low-cost sensor node platform for experimenting with the
Contiki operating system and 6LoWPAN networks similar to the following modules:
http://en.wikipedia.org/wiki/Comparison_of_802.15.4_radio_modules

===== Transceiver =====
=== AT86RF230 ===

http://freaklabs.org/index.php/Blog/Zigbee/atmel-at86rf230_231-review.html\\
http://forum.sparkfun.com/viewtopic.php?f=13&t=27907

===== Antenna design =====

868 MHz or 2.4 GHz/Chip or PCB antenna:\\
http://www.mikrocontroller.net/topic/229166

=== Chip antenna: ===

http://katalog.we-online.de/kataloge/eisos/index.php?language=xx&pf=WE-MCA\\
http://katalog.we-online.de/kataloge/eisos/media/pdf/7488940245.pdf

=== PCB antenna: ===

http://www.atmel.com/Images/doc8095.pdf

===== Microcontroller =====
Design choices:
  * Use a ATMEL MCU with at least 16kbyte RAM 
  * Use a DIL package for the MCU, so that it can be replaced in case of failure (ATMEGA1284P-PU)

http://www.atmel.com/Images/8059S.pdf

===== Peripherals =====
The following list of components could be useful for the operation 
of the sensor node.

=== RS232-USB converter ===
Provides power and lets us debug the output from the operating system and application program.
(MAX232 or equivalent).

=== Step-up voltage regulator ===
Use a single AA battery to power the board.

=== Sensors ===
  * Temperature sensor: [[contiki:snmp_oid_temperatur_adc|OID zur Temperaturmessung mit einem NTC Widerstand]]
  * Humidity sensor
  * Battery Voltage Sensor
  * Coulomb-Counting (measuring energy consumption)
  * ...

=== Misc. ===
  * 1 or 2 AA batteries
  * Prototyping area

===== Online shops for components =====

http://mikrocontroller-praxis.de/de/Mikrocontroller/AVR-ATmega.html \\
http://www.csd-electronics.de/ \\
http://www.air-electronics.de/catalog/product_info.php?products_id=884\\


====== Alternative Approach: ======


Possible new radio-module:\\
http://www.dresden-elektronik.de/shop/prod132.html

Contiki on this radio-module:\\
http://people.inf.ethz.ch/mkovatsc/wiki/general:contiki:atmega128rfa1


http://www.nongnu.org/uracoli/hwlist.html\\
http://www.sax.de/~joerg/\\