The MMA9553LR1 pedometer sensor integrates a high accuracy, high resolution MEMS accelerometer, a 32-bit low power embedded MCU, flash memory and a dedicated architecture to manage additional sensors. Featuring:
- A highly accurate, fast response, pedometer with accurate step counting and stride length detection
- Capability of adding additional motion sensing detection, such as threshold detection or wake-up detection
- Significant power savings of your overall system as well as step detection and counting while the rest of the system can be turned off
- Sensor hub functions to enable a large breadth of pervasive portable or wearable applications
Feature
- Three accelerometer operating ranges:
- ±2 g is suitable for orientation detection
- ±4 g covers most regular human dynamics such as walking and jogging and is used for the pedometer functionality
- ±8 g detects most abrupt activities useful for gaming purposes
- One slave SPI or I2C interface operating at up to 2 Mbps, dedicated to communication with the host processor. The value of the I2C, 7-bit address is 0x4C.
- Eight selectable output data rates (ODR), from 488 Hz to 3.8 Hz
- 10-, 12-, 14-, and 16-bit trimmed ADC data formats available
- 1.8 V supply voltage
- 32-bit CPU with MAC unit
- Extensive set of power-management features and low-power modes
- Integrated ADC can be used to convert external analog signals
- Single-Wire, Background-Debug Mode (BDM) pin interface
- 16-KB flash memory
- Six directions of orientation
- Pedometer
- Activity level
- Step count
- Distance
- Calorie count
- Auto wake/sleep
- Embedded, smart FIFO
- Power management
