I bought the WaveShare CAN Module.
I hooked it up and everything works fine.
I might have had bad chips.

Hello tuflix,

Can you please post a schematic of your circuit and BOM?

I have a basic question:

1) How can I validate and test the CAN circuitry in the ESP32 DevKitC with only using a single DevKitC module?

I would like to validate that CAN works in the ESP32 DevKitC before buying a lot of other modules.

Hello,

The CAN chip on the CAN board that I have, the VP230, does appear to be a SN65HVD23x 3.3V, when I do a google search.

I did NOT try to connect two ESP32 together via the CAN bus. I only tried to connect the GPIO lines of a single ESP32 together for my tests. I read that shorting GPIO35 (RX ...

On the DevKitC, I connected copper wires to the GPIO5 and GPIO4 ports and afterwards to GPIO5 and GPIO35 directly in separate tests.
Do I need to use PULLUPS on the lines?
Do I need to use physical PULLUPS or can I program the DevKitC to PULLUP the respective lines?
(I assumed that the software ...

CAN On ESP32 DevKitC

I’ve been trying to get CAN working on my ESP32 DevKitC for the past few days now--all with NO success.

I’ve successfully built and flashed 2 separate demos without errors. However nothing shows up on the output monitor when I do “make flash monitor”. I also did make flash and ...

Tried it and it works great under Windows 7.

Thanks...

Hello,

How is the pre-prepared FAT flash project coming along?

Hello,

Thanks very much.
This is great.
Everything works. I can flash and test successfully.
However, one thing doesn't work.
I cannot build the "mkspiffs" utility under Windows environment.
Any suggestions would be appreciated.
I get the following errors:

Under windows, I get the following ...