[Gumstix-users] GPIO questions

[Peter B. <pe...@pu...>]

I just purchased a waysmall 400xm-bt to use in a car project, and I have 
a couple of questions. I've been surfing the mailist archives looking 
for information, and have found quite a bit. I still have a question 
regarding GPIO. Does the waysmall 400xm-bt have a free GPIO pin I can 
use? It's the stock unit that is offered off the website. I have a 
little custom circuitry that will use the state of the car (on or off) 
to drive a pin high or low. I can then use the state knowledge to slow 
the proc down, turn off the USB port, and turn off the bluetooth radio 
to drop power consumption a bit. The power draw is too low to care too 
much about putting it to sleep, and the coding effort to get 
sleep/standby to work might be more than the power savings is worth. If 
the unit doesn't have a free pin, what can I buy for this setup that 
does? I'll be OK if someone tells me I have to buy a different unit to 
get what I want, I bought this setup before I realized it didn't specify 
free GPIO resources. And for now, I'm less worried about power and more 
worried about getting it all to work.

Thanks for any help.

-- 
Pete

Funny=Truth
Truth=Beauty
So take it as a complement when people say you look Funny.