General • Re: Pico Debug probe UART not working

Ok. I changed some things to see if it was something on the ports in the Ubuntu...

I switched to my Raspberry Pi 4 running Bullseye. I have my Pi Debug probe plugged into the RPi & it is working -- I'm able to program the ItsyBitsy RP2040. I have the ItsyBitsy RP2040 powered from a 5V supply (not plugged into the RPi).

When I go into Geany & run some sample code from the pico-sdk examples that use printf() statements & run minicom on the Pi Debug probe, I see scrolling output like I expect.

minicom -b 115200 -o -D /dev/ttyACM0

If I plug in the ItsyBitsy RP2040 to the RPi & I change the port from ttyACM0 to ttyACM1 & use minicomI get scrolling code as expected....

But If I open the Arduino IDE 1.8.19 & run some simple serial code I only get output from the IDE serial monitor when I go to

Tools: Port: /dev/ttyACM1

This tells me that the IDE serial monitor is not coming thru the Pi Debug probe, but thru the USB cable between the Itsybitsy RP2040 & the RPi.... I will not be able to use a USB cable to communicate between the 2 in my project -- I need the Pi Debug probe serial/UART.

How do I tell the Arduino IDE to use the Pi Debug probe serial/UART?

Statistics: Posted by ttu_Don — Sat Aug 31, 2024 5:35 pm

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