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Inhaltsverzeichnis
Development of a 6LoWPAN sensor nodes
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:
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)
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: OID zur Temperaturmessung mit einem NTC Widerstand
- Humidity sensor
- …
Misc.
- 1 or 2 AA batteries
- Prototyping area