SparkFun

SparkFun Triple Axis Accelerometer Breakout - BMA400 (Qwiic)

Name: SparkFun Triple Axis Accelerometer Breakout - BMA400 (Qwiic)
Brand: SparkFun
SKU: SF-SEN-21208
Price: 21.25 AUD
Availability: InStock

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The SparkFun Qwiic BMA400 Triple Axis Accelerometer Breakout offers a 3-axis acceleration sensor perfect for ultra-low-power applications on an easy-to-use Q...

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The SparkFun Qwiic BMA400 Triple Axis Accelerometer Breakout offers a 3-axis acceleration sensor perfect for ultra-low-power applications on an easy-to-use Qwiic 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 with no soldering required. This Qwiic breakout also includes 0.1"-spaced PTH pins connected to the sensor's communication interface and interrupt pins for applications that require a traditional soldered connection.

The BMA400 from Bosch Sensortech^© has a full-scale acceleration range of ±2/±4/±8/±16g with exceptionally low current consumption of < 14.5µA 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.

The SparkFun Qwiic Connect System is an ecosystem of I²C sensors, actuators, shields and cables that make prototyping faster and less prone to error. All Qwiic-enabled boards use a common 1mm pitch, 4-pin JST connector. This reduces the amount of required PCB space, and polarized connections mean you can’t hook it up wrong.

Get Started with the SparkFun BMA400 Triple Axis Accelerometer Guide

Features:

Supply voltage range
- 1.72 - 3.6V
Ultra-Low current consumption
- < 14.5µA at highest performance settings
I²C interface (Qwiic-enabled)
SPI interface (disabled by default)
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)
2x Qwiic Horizontal Connectors

Documents:

Jargon buster

Plain-language definitions for the technical terms used above.

breakout: A breakout board carries a small or fine-pitched component and brings its connections out to standard, breadboard- and header-friendly pins. Describing a part as a breakout means it can be wired into a project without soldering directly to the component's tiny contacts.
Motion detection: The ability to sense that something has moved, either by comparing successive camera frames or by using a dedicated sensor such as a PIR (infrared) or radar module. When a product lists motion detection, movement can be used as a trigger so a system only acts or records when there is activity rather than running continuously.
PCB: A printed circuit board (PCB) is a board, usually rigid, with etched copper tracks that connect electronic components together without loose wiring. Components are mounted on the board and signals route between them through the copper layout.
PTH: Plated through-hole means the pin holes are metal-lined so solder connects the pad on both sides of the board. It is useful for connectors and headers that need a strong mechanical and electrical connection.
Qwiic: Qwiic is a plug-in connector system for I2C devices that uses small 4-pin cables, so you can connect compatible sensors without soldering. It matters because your controller or adapter also needs Qwiic, or you will need a cable or breakout to wire it up.
SPI: A fast serial communication bus often used for displays, memory cards, and sensors. It matters because SPI devices need specific pins for clock and data, plus a separate chip-select line for each device.