[Tinyos-help] Boomerang versus T2, a few questions

[André Miguel de Almeida Marrão Rodrigues]

Hello



We have been working with Boomerang using the sensorion sensors on TMoteSky 
and

an external PCB (with a processor, accelerometer and a digital sensor) 
connected via RS232 (with the arbitration code example that is in the 
support site).



Now we need to connect a 3 axis accelerometer (MMA7260) and a digital sensor 
that generates a square wave (with 5ms length at a variable frequency 
between 30Hz-120Hz) directly to the sensor node (to simplify the project).



For the accelerometer we thought to use the ADC lines in the expansion 
connector. For the other sensor what should be a good processor line option, 
taking in account that what we would like is generate an interrupt whenever 
the pulse happens? If possible it would be better to avoid the user button 
line. Do you know of any drivers for this kind of hardware?



Another point is that because we (in other projects) are thinking in going 
with T2, we thought moving this project to T2 too. In terms of stability, 
hardware sensor support and RS232 arbitration, how does T2 compares to 
Boomerang? And what about low duty cycle communication support?



Best regards,



André Rodrigues