Thanks rudi. Yes I am using Kvaser Leaf Light v2 HS with OBD plug. SN65HVD230 CAN bus tranceiver (3.3V). Kvaser Leaf CAN H to SN65HVD230 CAN H. Kvaser Leaf CAN L to to SN65HVD230 CAN L. Kvaser Leaf GND pin 5 (signal ground) to to SN65HVD230 GND. I will try Kvaser Leaf GND pin 4 (chassis ground) and ...

Bit more info after playing all afternoon. The Tx pin is connected to the tranceiver from pin on ESP32 Devkit C to pin on the tranceiver chip, but the ESP32 cannot transmit. Pulling either Tx or Rx connection from ESP32 to tranceiver stops reception. The ECU only sends a single packet (but repeatedl...

Wow rudi, that is awesome, thanks very much! This is an amazing chip and forum, great support, you deserve to sell billions of ESP32. I have got the ESP32 and a CAN bus tranceiver hooked up to a Kvaser Leaf Light, with termination resistance. I can send a frame from Kvaser and the ESP32 receives it,...

As a follow up, the demo compiles fine if I compile it as it is in the zip, so I've removed version 0.1_third_parts. I can also see that I could: ...and then set the ID with: Which is quite useful as I want to transmit and receive on multiple CAN IDs.

Great work on this! Great device! Received my ESP32 today and trying to compile CAN example. I thought it was best to clone version 0.1_third_parts and the menuconfig includes the options and saves them correctly. I copied main.c from http://www.barth-dev.de/wp-content/uploads/2017/01/ESP32_CAN_demo...