Designed for IDE 1.0 and OSX 6 I/O pins for flexible prototyping Two pins are used for USB communication only if your program actively communicates over USB When USB communication is not active, all six pins are available, including during USB programming Visible status indicators Power LED and test LEDs provide immediate visual feedback during development and testing Onboard power regulation Onboard 150 5V regulator for convenient power management within the system Use scenarios USB enabled prototyping on OSX Build and test small USB devices using IDE 1.0 on OSX, with up to six I/O pins available for sensors and actuators, and USB activity indicated by the control LEDs. Microcontroller projects with builtin power management Use the onboard regulator to power your circuit from an external supply, reducing the need for additional power components during early development. Education and debugging sessions Leverage the Power LED and test LEDs to quickly verify power and I/O activity while teaching concepts or debugging hardware logic.