Configuring a SPI port on Pixracer Board

Hi, we are a group of students trying to integrate Optical Flow PMW 3901 designed by Pesky Products with the Pixracer using the Arducopter ver 3.6 firmware.

Here’s the link:

So far the limited resources we have found pointed us to towards configuring the WIFI port on the PixRacer Board, initially for the ESP 8266 Wifi Module. However, we are confused by how to configure it as well. Please help us (or save us) if you have any idea on how to do the above by responding below. Thank you!!!


Definitely appreciate the enthusiasm but let’s not open up too many parallel threads…