getting the Z1's running 6lowPan was very fast (for a quick start use instant contiki)
using the z1-websense demo
then browse the edge node http://[2001:630:d0:f200:212:7400:1465:d8aa] to see its IP
and browse the node directly
radio range with external antenna is quoted as 180m with 5 db antennas.
if we want to link our long stretches with these we will need to evaluate grid/panel antannas
ideally we will use the thingsquare CC1120 contiki code and link to the COTS CC1120 pcbs via our interface card.
Q: do we cut power to the onboard CC2420 chip in case its disabled current is too high?
probably need a 3.3V supply on our add-on board and a 5V PSU for sensors
Sleep current for a z1 on its own with contiki needs measuring (then with our add-on board) to determine the lifetimes
PSU: 3.3V ok? from lead acid
Sensor interface - analogue + power/GND
Digital sensor interfaces - RS485, RS232 option, I2C
most sensors have an avr over rs485
we have about 7 spare ADC inputs - which seems OK for each node's max
TC - RTC if we need better timing accuracy (need to check what is used/usable in Contiki)
Not all the pins presented on the headers are available for external use. The following pins are used for functions internal to the Z1
|MSP430 Port#||Pin Name||Pin#||Notes|
|P6.0||ADC 0||15||Weird potential divider on the board gives odd readings|
|P6.7||ADC 7||6||Odd internal pulling|