I've recently build my own dev board utilizing the ESP32-C3-MINI-1-N4 module. Everything works pretty well and just as expected, I can control a few onboard LEDs just fine and upload code and everything. The only (major) problem is that I apparently can't receive any Serial data. When using the Arduino VSCode Extensions Serial Monitor I get an error:
the error is highlighted and German, it translates to something like "Error opening the Serial port /dev/ttyACM0", in the top you can also see my very simple test code. On pin 2 theres an LED which blinks just as expected.
When using
screen /dev/ttyACM0 115200 i just get an empty screen, no error message but also no output. Same goes for tio:
When using the Arduino IDE on windows I don't get any error messages but only a blank Serial Monitor as well. I'm really out of ideas and would really appreciate any help you could give me.
Thanks in advance!
Cheers, Emil
P.S. I'm not 100% sure this is rightly placed in the hardware category but I figured to have ruled out pretty much any software problem that could be the reason for the observed behavior. I really hope it is just a software problem though and I guess I'm somewhat hopeful as litereally everything else works just fine.