Trinket Pro


I recently bought a Trinket Pro 5v.
I can’t get a sketch to upload. I have installed the windows drivers on a new HP Win 10 and on an ancient Win 7 laptop. In both cases there is no port available for selection.
I have also tried it on a Mac, 2 x Linux laptops and three different Raspberry Pi’s all with the same problem.
On each device the red light pulses when it’s plugged in. I have tapped the reset button but it never picks up the port.

If you haven’t already, try a different USB cable. And make sure its a DATA cable, not a “Charging” cable. The Charging cables don’t have the DATA wires in them.