Getting Telemetry data from APM 2?

Hello,

I’m a university student working on my first UAV project for the summer. My current setup consists of an APM 2 and a Raspberry Pi w/ camera to do visual servoing and control on a fixed UAV. I’m trying to figure out how or if I can get telemetry data, such as velocity, roll angle, angle of attack etc, from the APM 2 directly to the Raspberry Pi. I’m not sure if there are pins on the APM for this or if I’ll have to modify its code somehow. Is there a way to do this via the I2C port on the APM? Or will I have to modify the APM code? Has anybody attempted this before? If you have any advice on how I might best go about this that would great. 

Thanks,

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