I currently working on a project where an Arduino has to communicate with a pi. Since the pi is running out of USB ports, I am forced to use the ux/tx ports on the Arduino and pi.
The communication in between those to consist of writing and reading from rostopic, meaning that rosserial is establising the serial communication.
I have only tested this using USB and between a pc and arduino, which works well, but haven tested on those pins and are bit unsure on a few things.
Do I need to use certain pins? And should they be setup for serial communication? in that case how?
I guess I would need a logic level converter. It should be easily made using a voltage divider. But should both have separate ones, or is just one enough?