Users have several options to evaluate and then develop on SAM4S. The SAM4S evaluation Kit offers plenty of integrated features such as an LCD, SRAM, and serial communication connectors. The SAM4S Xplained Pro offers an embedded debugger and extension board capability such as Displays, IO and prototyping, Communication, and 3rd party sensor extension boards. The SAM4S Xplained is a low cost development board with embedded debugger. Finally, the SAM4S Wireless PIR reference design provides a way to experience the CMOS interface capability of the SAM4S. All the kits are supported by AS6 with example within ASF.