It is related to antenna design. I made a custom board where it was very hard to implement the recommended antenna keep-out clearance and used a similar ceramic antenna. I had to reduce tx power to get it to connect to networks. This is not an issue if the board is always close to the router.

I have changed a few things in esp32_can_builtin.cpp, but it looks like it isn't switching the controller id. 17:28:30.013 -> Initializing ... 17:28:30.111 -> TWAI V2 driver installed with controller ID: 0, TX: 17, RX: 16, bus: 1082212888 17:28:30.111 -> TWAI V2 driver started with controller ID: 0,...

Hi everyone! In my search for some dual TWAI examples for Arduino, I ran into https://github.com/outlandnish/esp32_can which is a fork of the well known https://github.com/collin80/esp32_can/, however this fork was last updated way before the recent release of arduino-esp32 based on IDF 5.2.0+ in 3....

Would anyone happen to know why it is required to run espefuse summary to fix the USB?

So I got it working by setting USB CDC and Enable Erase Flash in Arduino IDE.

Still preplexed why I had to run espefuse summary to get the USB to stop acting up though.

I have a custom ESP32-C3-WROOM-02 board keeps connecting/disconnecting the USB port. I can see the port come up in Arduino IDE, but 2 seconds later it disappears, then come back and so on D-/D+ is connected directly to IO18/19. The board of course has 5V to 3V3 for power. An original dev board from ...

Would anyone happen to know which components should be covered by an EMI can? I am working with limited available space under then can. It seems I will be able to fit the SOC and some passives like the 3V3 decoupling capacitors. Should I also try to cram the antenna coil or any other passives under ...

Hi all! Would anyone happen to have experience with the QFN-20 version of the CP2102N and ESP32? An autoprogram circuit with a dual transistor uses DTR and RTS to pull EN and IO0 low. The QFN-20 does not have a DTR pin. Is the alternative as simple as programming GPIO1 or 0 on the CP2102N to be low ...

Thank you, this worked.
Also the baud rate was 9600, even though manf. says 38400 in datasheet.

@WiFive

So what is the best option in my case (ESP32 wroom)?
Is there another way to test this before burning the fuses?