I bought 2 Adafruit Trinket M0 boards. These are great because they are tiny. Problem I am having is with the USB. I installed the boards and during installation it installed drivers I think. When I plug it into the USB port it comes up as USBTiny , but not under the COM ports section. The COMs are just my wireless keyboard and internal USB used. In the Arduino IDE I select the board and when I select ports it does not list it. Also when I click on programmer it has Jlink and Atmel options but no AtinyISP. Long story short I don't know why I can't see it under COM and why it does not have the correct programmer option. Running Win11 and my cable has been tested with other boards and works just fine. Appreciate any help. Thanks!
That's the original Tinket with no USB Serial support.
I believe that the "Trinket M0" DOES have such support.
(However, it may not show up until you load a sketch that actually uses the serial port. the bootloader is NOT serial-based on M0 boards.)
It can't be programmed with an ISP programmer at all, though.
I guess I don't understand how the IDE sketch allows the USB to be discoverable. When I have tried to follow the adafruit instructions it shows the device discoverable on PC as any other USB device. It's not for me tho
Ah Ha ... my experience is strictly with the original ... good catch. I "assume" the M0 can be flashed from Arduino IDE but below is how Adafruit ships the device.
Current info from Adafruit:
The Trinket M0 has swapped out the lightweight ATtiny85 for a ATSAMD21E18 powerhouse. It's just as small, and it's easier to use, so you can do more.
The most exciting part of the Trinket M0 is that while you can use it with the Arduino IDE, we are shipping it with CircuitPython on board. When you plug it in, it will show up as a very small disk drive with main.py on it. Edit main.py with your favorite text editor to build your project using Python, the most popular programming language.
Everyone using any Adafruit product is encouraged to consult Adafruit online documentation and remember that Adafruit has a support forum for their hardware & software with support specialists that may have known workarounds.
