Artemis port not found Ardunio IDE

Try switching the bootloader and/or baud rate per this guide https://learn.sparkfun.com/tutorials/ar … th-arduino ; also try uninstalling the ch340 drivers (mac shouldn’t require them?), and ensuring that the board definitions are up to date

If none of that works, perhaps test the device on PC or Linux instead, if available? Finally, if nothing works it might be a defective board and we can swap it out via https://www.sparkfun.com/returns