The U3 IO Shield is designed to be mounted to the U3 via spacers and connected via the 8 pin GPIO connector on the U3. It is meant as a development board to allow the U3 to interact with its surroundings. KEY FEATURES 36 pins for GPIO/PWM/ADC Same footprint as the U3 Versatile, general-purpose data acquisition and control module Direct connection to U3 via 8-pin GPIO connector Relatively large prototyping area GPIO/ADC/PWM and power pins on 0.1" strips Two 3-pin headers for small servo applications Access the HW SPI of Exynos-4412 CPU (compatible with U3 PCB revision 0.5) SPI Flash memory SST25WF020A Additional 10-pin connector for I2C/GPIO expansion INCLUDES U3 IO shield board (U3 not included) 4x 20mm PCB spacer (plastic) 4x 11mm PCB spacer (metal) - Must be used between the U3 and IO Shield for proper grounding 4x 10mm PCB spacer (plastic) LINKS Hardkernel product page - https://www.hardkernel.com/shop/u3-io-shield/ Warranty is valid for two weeks, starting upon date of receipt.
