When I first bought Adafruit's Trinket, I was experiencing an issue with my Windows 7 desktop PC.
I could not get my Trinket's red LED to pulsate for 10 seconds after it had power. As it was suppose to do (http://learn.adafruit.com/introducing-trinket/starting-the-bootloader).
Adafruit's Trinket
I finally was able to get the Trinket to work correctly by adding a powered USB hub to my desktop PC. I assume that it may have been a power issue, but I am still uncertain.
Here is the video:
I have an idea that maybe by adding a capacitor could solve this problem as well. I have yet to try that.
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