chipKIT

PIC32 32-bit MCU Power for the Arduino™ Community
These chipKIT™ development boards are the first 32-bit-microcontroller-based platforms that are compatible with many existing Arduino™ code examples, reference materials and other resources.

Key Features:

Pin-out compatibility with many existing Arduino™ shields that can operate at 3.3V
Lower price-point at four times the performance than existing solutions
Advanced capabilities including:
- Integrated USB (Device/Host, OTG)
- Integrated Ethernet

Programming:
chipKITs can be programmed using an environment based on the original Arduino™ IDE modified to support PIC32 that also still supports the original Arduino™ line. Leverages existing code examples, tutorials and resources.