Where are the expansion headers located in Ubuntu?

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1

Hi guys,
I have an ldr connected on an 1.8V pin 39 on my beagle bone running UBuntu.
I would like to know where to acces the digital data.
I know it is on /sys/devices/platform/tsc on angstrom. But where is it on Ubuntu. Please forgive me if i sound too stupid but I cant find it.

2

Just a Hardware note. BeagleBone does not have 1.8V on the pins. All pins are 3.3V.

Gerald

3

But on the data sheet(http://beagleboard.org/static/BONESRM_latest.pdf) it says pin32(typo in the original) is a 1.8 V pin. I may be wrong here but I just want to confirm

4

It isn’t a digital pin. That is an analog pin, A/D converter and that relates only to the maximum voltage it can handle.

Gerald

5

Oh okay. Thanks for the heads up.

6

It would also help to say what connector pin 39 was on. Don’t hesitate to all clarifying information to your questions.

Gerald