Description: Arduino support for a variety of microcontroller inline, without any wiring Integrated voltage regulator IC, supports 5V or 3.3V power supply On-board level conversion scheme, the real perfect compatible 5V / 3.3V IO level, supports a variety of single-chip IO connection Integrated backlight control circuit, you can control the on-off or PWM dimming Integrated SD card expansion circuit Reserved SPI FLASH font circuit to facilitate the expansion of applications Specification: Material: FR4 Size: 6.5 * 4.2 * 0.8CM Package Includes: 1x 2.2'' LCD Screen Dispaly Module