Two ADC channels on ATSAM(D)E51

Just realised i need to activate the second ADC channel for the voltage divider sitting on the bus. For a safety measure. Using such a voltage divider, you should have a low value resistor in series with the signal to dampen any spike.

Do you have experience with this in a Arduino environment?

https://youtu.be/QtV-zqFLLpg?list=RDGMEMYH9CUrFO7CfLJpaD7UR85w

The FUnk