BMA423 Accelerometer

By Bosch Sensortec 101

BMA423 Accelerometer

Bosch Sensortec's BMA423 features 12-bit digital resolution, embedded intelligence that allows for low-noise measurement of acceleration in three perpendiculars and thus senses wrist tilt, tap/double tap, and enables plug n' play step counting especially in wearable devices. This accelerometer with its embedded intelligence is highly configurable to give design flexibility while providing low current consumption for always-on applications and wearable devices. The BMA423 is optimized for wrist bands, toys, gadgets, and wearables.

Features
  • Small package size (2.0 mm L x 2.0 mm W x 0.95 mm H)
  • Digital interface: SPI (4-wire, 3-wire), I2C, 2 interrupt pins
  • Programmable functionality
  • On-chip FIFO 
  • On-chip interrupt features
  • Ultra-low power
  • Auxiliary interface (secondary)
  • RoHS compliant, halogen-free
Applications
  • Step counting in wearable devices
  • Wake up display on wrist tilt
  • Low-power user interaction by tap/double-tap
  • Advanced gesture recognition
  • Activity recognition/tracking
  • Advanced power management for mobile devices
  • Tilt compensation for electronic compasses

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