Hi!

What is the best way to have gpio working with a raspberry Pi and Purr data?

Do I need to install wiring pi and compile the externals like in vanilla pd?

Thanks for your tips!

Ok, I reply to myself... I compiled and installed wiring pi and then Pd_wiringpi_gpio and it looks to be working well with purr data with Pi3.

I would like to use spi with the gpio from within pd directly, do you or anybody have any experience with that?

I saw an experimental spi external if I remember...
https://github.com/HerrSteiner/wiringPD

Never tried it... but I would be happy if you can share any feedback here!

I did not get it to work from within Pd directly, so I will do the SPI part with python, and communicate with python via loacalhost and OSC.