Datasheet

Arduino IDE as root, which will make sure you have the proper permissions. If you want to be
super-cool you can add a udev rule which will let any user (who is not root) connect to the USBtiny
driver. That way you don't have to be root all the time!
Check http://learn.adafruit.com/usbtinyisp/avrdude#for-linux (http://adafru.it/cf3) for what to add to
your udev file.
How to start the bootloader
Before you try to upload code to the Trinket it must be in the Bootloader Mode. That means its
listening for a sketch or program to be sent to it
The Trinket must be connected to a computer via a USB cable to enter bootloader mode. You can
enter the bootloader mode by pressing the little button on the board with your fingernail. The
bootloader will 'time out' after 10 seconds, so to re-enter the bootloader mode just re-press the
button!
Don't press-and-hold the reset button, be sure to press-and-release!
See the video below for what it looks like to plug it in, have the LED pulse in bootloader mode, time
out and then press reset to restart the bootloader
When the Trinket is in bootloader mode, the red LED will be pulsing. Once the red LED stops
pulsing, you must press the reset button to re-enter bootloader mode
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