Just got a brand new Teensy 4.0 and 4.1. When I plug in the USB, "blink" runs and the LED flashes, but no comm port shows up. Pushing the button gives a blinking red LED ("no usb"?). On the same PC my UNO R3 works fine. A Teensy 4.1 has worked on this PC before (but I gave it away!). Tried:
several different USB cables (5)
several different PCs (3)
installing FTDI
still no comm port. Any hints?
several different USB cables (5)
several different PCs (3)
installing FTDI
still no comm port. Any hints?
Statistics: Posted by glenredford — Wed May 29, 2024 8:21 am