Freerunner GPIO locations

Benjamin Deering ben_deering at
Tue Feb 18 03:57:02 CET 2014

On 02/17/2014 06:17 AM, Robin Paulson wrote:
> hi all,
> apologies if this question is answered elsewhere, i've done lots of
> searching of the openmoko wiki and the web, and can't find an answer
> i'd like to interface my freerunner with hardware switches to control
> some software. i believe gpio is the best way to do this, and have
> help from various bodies at my local maker space to do so.
> problem is, i can't locate the gpio pins on the motherboard. are there
> any schematics out there with their location? ideally something which
> relates them to the nodes in /sys/class/gpio/
> cheers,
If you aren't able to find the GPIOs, you could add an i2c-gpio 
expander.  The i2c pad locations are known:

Good Luck,


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