I am considering to adopt a GoPiGo 2 + Raspberry Pi. How many sensors can be used at the same time? E.g. could I have a camera mounted on the servo kit, ultrasound and a contact sensor? Also, does one need the GroovePi to connect sensors for GroovePi, or can they be directly connected to the GoPiGo 2?
I am looking at https://www.dexterindustries.com/GoPiGo/learning/hardware-port-description/ , but from there I cannot say, for instance, what ports would be used for communication between the GoPiGo 2 and the Raspberry Pi.