On-board diagnostic (OBD) scanners are another example of CAN devices you can play with at your home lab. After hacking a couple of IPCs let's do something potentially more productive 😉 Communicating ...
The UART2"LIN" transceiver on the DDSM driver hat has 5V logic 2. Choose five-volt tolerant (FT) pins on your STM32 uC or use a logic level converter 4.