Instructables

Step 5: Installing Teensyduino

The Teensy uses the USB connection for programing, so we don't need a separate AVR programmer. We will use the Teensyduino IDE, which is a patch to the Arduino IDE.

If you don't have it yet, download & install Arduino v18

Next, download the Teensyduino installer for your OS and run it, patching the Arduino IDE

Finally, be sure to also grab Teensyloader which is a helper that talks to the Teensy for you