SainSmart MMA7455 Accelerometer Sensor Module AVR ARM MCU onboard Freescale MMA7455 digital output (I2C/SPI),low power,compact capacitive micromachined accelerometer Support 5V/3.3V voltage input, onboard RT9161, lower pressure drop than the 1117, faster load the appropriate speed, is ideal for high noise power supply environment Lead important pins out as the standard 100mil (2.54mm) PCB board is gold-plated, size: 24.9 (mm) x12.7 (mm) Mail in for datasheet