I'm very new to Arduino programming and would appreciate any guidance. I am currently using Arduino IDE 1.8.19 with a Teensy 4.0 development board. As I try to run any code, I get the following error:
"Teensy should be selected from "teensy ports" rather than "Serial ports" in Arduino's Tools > Port menu"
However, I have selected "teensy ports," as shown in the attached picture. I would greatly appreciate any tips on resolving this issue. Thanks!
Hi @adipoli92. Is there a specific reason you are using the outdated Arduino IDE 1.8.19? If not, I suggest trying Arduino IDE 2.x. The Teensy boards support system has been completely reworked for Arduino IDE 2.x so it is likely that whatever problem is causing this unexpected error message from Arduino IDE 1.8.19 will not occur in Arduino IDE 2.x.
You can download Arduino IDE 2.x from the links here on the official "Software" page:
ⓘ You can have Arduino IDE 1.x and 2.x installed at the same time on your computer without any problems so there is no requirement to uninstall your current Arduino IDE before installing Arduino IDE 2.x.
If you aren't certain you want to switch completely from using Arduino IDE 1.x yet, you are welcome to leave Arduino IDE 1.x installed.
After installing Arduino IDE 2.x, add Teensy support by following the instructions here: