Arduino shell example
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This example start a shell on merkurboard serial0 line.
You can change the network parameters and store it in eeprom.

make clean TARGET=osd-merkur-256 flash

start a terminal programm
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picocom -c -b 38400 --omap crcrlf /dev/ttyUSB0

? [ENTER]

Available commands:

?: shows this help

ccathresholds <threshold: change cca thresholds -91 to -61 dBm (default -77)

exit: exit shell

help: shows this help

kill <command>: stop a specific command

killall: stop all running commands

null: discard input

panid <0xabcd>: change panid (default 0xabcd)

ps: list all running processes

quit: exit shell

reboot: reboot the system

rfchannel <channel>: change radio channel (11 - 26)

saverfparam <> save radio parameters txpower, channel, panid to eeprom settingsmanager

txpower <power>: change transmission power 0 (3dbm, default) to 15 (-17.2dbm)

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quit picocom, you need to press Ctrl-a , then Ctrl-q
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Read eeprom to disk:
avrdude -p m256rfr2  -c stk500v2  -P /dev/ttyUSB0 -b 57600 -U eeprom:r:eeprom_img.hex:i
Write eeprom to Merkurboard:
avrdude -p m256rfr2  -c stk500v2  -P /dev/ttyUSB0 -b 57600 -U eeprom:w:eeprom_img.hex:i

todo: 

bugfix: txpower <power>: change transmission power 0 (3dbm, default) to 15 (-17.2dbm)
make a contiki app for easier inegration in projects

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This example shows that it is now possible to re-use arduino sketches in
Contiki. This example documents the necessary magic. Arduino specifies
two routines, `setup` and `loop`. Before `setup` is called, the
framework initializes hardware. In original Arduino, all this is done in
a `main` function (in C). For contiki we define a process that does the
same.

See the documentation file in apps/contiki-compat/README.md