Robotino Raspberry
From RobotinoWiki
Introduction
Software
Install Raspbian on your Raspberry Pi. Include the Debian Buster repository for Robotino.
apt-get update apt-get install robotino-daemons
On Robotino v1 and v2 you have to enable the controld2 service.
systemctl enable controld2.service
Disable console serial0
Edit /boot/cmdline.txt and remove console=....
systemctl stop serial-getty@ttyS0.service systemctl disable serial-getty@ttyS0.service
Reboot.
Hardware
The serial line at the Pi GPIO14/15 is TTL level whereas the RS232 connector on Robotino's IO board is RS232 level. The MAX3232 does this job.