[Tinyos-help] using mda320 digital I/O

[Murray, Mathew]

I'm new to tinyOS/nesC so sorry if I'm missing things. I'm working on a
project at the University of Wolverhampton to monitor people living in
sheltered accommodation. I'm trying to use a PIR through a digital I/O
channel on an mda320 (with the temp and light readings) which is on a
micaz. I'm using tinyOS 1 with the Crossbow contribution. I have a few
questions: 

1. I don't have a driver for the mda320, just mda300. Do I need one
specifically for the mda320? Where do I get one from?

2. I need to set the I/O to input and can't find how to do it.

3. I need to know when the PIR is activated, can I just add this to the
packet of sensor readings? Can I send the packet when the PIR is
activated?

 

Thanks, Mat

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