Adafruit Teensy++ (AT90USB1286 USB dev board) + header

The Teensy++ 2.0 offers a compact yet powerful USB-based microcontroller solution for versatile project needs. Its integration is seamless, requiring no special programmer—just a Mini-B USB cable and your computer.

This revamped version comes loaded with an AVR processor running at 16 MHz, providing all the computational power needed for complex tasks. The USB interface can mimic any device type, expanding the flexibility of your projects.

Programming is a breeze with the single pushbutton feature, and the Teensy Loader application simplifies software uploads across platforms, supporting Mac OS X, Linux, and Windows.

Ideal for development, it includes pre-attached header pins for effortless connection to solderless breadboards. Additionally, the AT90USB1286 chip with bootloader pre-installed ensures quick setup.

For coding, leverage AVR-gcc with the LUFA library or enhance your Arduino sketches using Teensyduino. Numerous resources at PJRC support your development journey, equipping you with the tools needed for innovation.