In the past, I studied a lot of theory about the CAN protocol, and later I wrote some code to gain practical experience. I also experimented with an Arduino board, PIC microcontroller, CAN controller, and some transceiver ICs, but I didn't get the expected output. Currently, I don't have a DSO either.

I'm considering purchasing a ready-made CAN board to ensure there are no hardware issues, so I can focus only on writing code and testing it.

If anyone has experience using ready-made CAN boards or has worked on board to gain practical experience , please suggest a suitable board or provide a better idea.

 

You can sniff CAN (and CANFD) with a cheap USB-logic probe and free software. https://www.sparkfun.com/products/18627

I can just give you one of my 40-pin Q84 boards that have CAN/CANFD, MODBUS, TTL serial and the old FM80 interfaces if you want to experiment. The hardware all woks and is well tested but you will need another device on the bus to talk to.

https://forum.allaboutcircuits.com/...rge-controller-datalogger.194146/post-1829107




https://forum.allaboutcircuits.com/...rge-controller-datalogger.194146/post-1833176

I made a later rev that uses the SMD controller for the running system.

https://forum.allaboutcircuits.com/...rge-controller-datalogger.194146/post-1842562