Optical flow sensor and Pixhawk

Hi,Has anyone been able to successfully install and use the OFS&Sonar combo that 3DR sells?I've managed to update the firmware and focus the link using the ground control software but the next step seem to be to change some boot up script and I have

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How to connect Pixhawk to Arduino?

Hi,

What's the preferred method of interfacing the Arduino with a Pixhawk? And is there a guide out there somewhere for it?

I'd like to use an Ardunio(+Pixy) to locate and move a quad copter between indoor waypoints.

The only method I'm aware of is to u

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