Datasheet
Something Went Wrong!
If you get the error message avrdude: Error: Could not find
USBtiny device (0x1781/0xc9f)
That means the bootloader wasn't active. Make sure to press the button on the Trinket to
activate the bootloader before clicking the Upload button. Also, check that you see the red
pulsing LED on #13 that indicates the USB bootloader enumerated to your computer
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