MEMS-based motion sensors move lower in both size and price

摘要

The 16-bit, three-axis LIS-302DLH digital MEMS (microelectromechani-cal-system) acceierometer from STMicroelectronics is 0.75 mm high and has a 3×5-mm footprint. It has a power-saving shutdown mode and wakes automatically when it detects motion.rnThe integrated digital circuitry provides acceleration measurements to ±8g through an I~2C (inter-integrat-ed-circuit)/SPI (serial-periph-eral-interface)-bus interface, allowing direct connection to the system processor with no external components required. The device sells for $1.35 (10,000).