com port?

[stevengroot]

hello there,

This may be a stupid question, but i'm a little bit confused on how to program the 5v trinket.
In the FAQ it is stated that the trinket does not have a COM port because it has no USB-serial converter chip.
But in the arduino IDE you need to select a COM port to program to. So how does this work? i've tried uploading to every available COM port but without succes.

i have the board set to Adafruit Trinket 8MHz and the programmer to USBtinyISP. i keep getting the error "avrdude: Error: Could not find USBtiny device (0x1781/0xc9f)"
wich makes kind of sense to me because its on a COM port that is not listed because it's not recognised as such a device.

so am i doing something wrong? am i missing anything? any help would be greatly appreciated.

thanks in advance.

[adafruit_support_rick]

What operating system are you using?

[nexttoone45]

I'm having the same problem as well with Windows 8.1

[nexttoone45]

I solved the problem by using a high quality USB cable and with COM 1.

hope that helps!

[AnneBarela]

You need to select USBtinyISP as the programmer in the Arduino tools menu. That driver will program the Trinket given the boot code and lack of serial chip just fine. See the Introducing Trinket (or Pro Trinket) tutorial on this point.