The SparkFun Qwiic BMA400 Micro Triple Axis Accelerometer Breakout offers a 3-axis acceleration sensor perfect for ultra-low-power applications on an easy-to-use Micro Qwiic format breakout board. Dubbed the first “real” ultra-low power acceleration sensor, the BMA400 is perfect when used in both wearable and smart home applications. Where this sensor shines, however, is its ability to distinguish between critical situations and false signals by avoiding false alarms. The Qwiic system allows for integration into your I2C system, requiring no soldering. While the Micro size does not allow for a traditional 0.1″-spaced PTH header for communication, the board does route an interrupt and ground pin to a through-hole connection.

The BMA400 from Bosch Sensortech has a full scale acceleration range of 2/4/8/16g with exceptionally low current consumption of < 14.5A while operating at its highest performance settings. The sensor also includes a complete feature set for on-chip interrupts including auto wakeup/low power, step counter, activity recognition, orientation detection and tap/double tap.

Get started with the SparkFun BMA400 Micro Triple Axis Accelerometer guide

Features

• Qwiic Micro Sized Board (0.75in x 0.30in / 19.05mm x 7.62mm)
• Supply voltage range
  • 1.72 – 3.6V
• Ultra-Low current consumption
  • < 14.5A at highest performance settings
• I2C interface (Qwiic-enabled)
• I2C addresses
  • 0x14 (Default), 0x15
• Selectable acceleration ranges
  • 2/4/8/16g
• On-chip interrupt features
  • Auto-low power/auto wake up
  • Step counter
  • Activity recognition (walking, running, standing still)
  • Motion detection
  • Orientation detection
  • Tap/double tap
• Output data rate range
  • 12.5 – 800Hz (Normal Mode)
  • 25Hz (Low-Power Mode)
• 1x Horizontal Qwiic Connection Port

Resources

• Schematic
• Eagle Files
• Board Dimensions
• Datasheet(BMA400)
• Hookup Guide
• Qwiic Info Page
• BMA400 Arduino Library
• GitHub Hardware Repo