SparkFun

SparkFun Triple Axis Accelerometer Breakout - KX134 (Qwiic)

Name: SparkFun Triple Axis Accelerometer Breakout - KX134 (Qwiic)
Brand: SparkFun
SKU: SF-SEN-17589
Price: 74.7 AUD
Availability: InStock

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This SparkFun Triple-Axis Accelerometer Breakout is a simple Qwiic breakout for the KX134 digital accelerometer from Kionix. The KX134 is a low-power, 16-bit...

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This SparkFun Triple-Axis Accelerometer Breakout is a simple Qwiic breakout for the KX134 digital accelerometer from Kionix. The KX134 is a low-power, 16-bit resolution three-axis accelerometer capable of measuring ±8g/16g/32g/64g (user-selectable) and has up to a 10kHz output data rate making it ideal for high-g measurements as well as high-speed applications such as vibration sensing.

The KX134 includes a host of features including Freefall detection, Directional Tap^™ and Double-Tap^™ detection, tilt orientation detection and more. The Qwiic KX134 can interface with controllers using both I²C and SPI at high speeds so you can use it in an existing Qwiic chain or on a SPI bus.

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 Qwiic KX13x Triple-Axis Accelerometer Guide

Features:

Measurement Range: ±8g, ±16g, ±32g, ±64g (User Selectable)
High Resolution (8 or 16-bit)
User-Configurable Output Data Rate (ODR) up to 25600Hz
User-Configurable 3-stage Advanced Data Path featuring low-pass filter, low-pass/high-pass filter and RMS calculation engine
Wide range of built-in sensing functions
- Free Fall
- Directional-Tap^™ / Double-Tap^™
- Device Orientation & Activity Algorithms
Low Noise: 130µg/√Hz (varies based on ODR, power mode & other settings)
High Resolution Wake-Up & Back-to-Sleep Detection with configurable threshold as low as 3.9mg
512-byte FIFO buffer that continues recording data while being read
Selectable Low-Power or High-Performance operating modes
Low Power with Integrated Voltage Regulator
- High Performance Operating Current Consumption (400Hz ODR + Wake-Up Detection): 148µA
- Low Power Operating Current Consumption (0.781Hz ODR + Wake-Up Detection): 0.53µA
- Standby Current Consumption: 0.5µA
Self-Test Functionality
Digital I²C up to 3.4MHz and Digital SPI up to 10MHz
2x Qwiic Connectors
SPI available on PTH Header Pins
I²C Address: 0x1E (0x1F alternate)

Documents:

Videos

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.
FIFO: FIFO stands for "first in, first out", a way of handling stored items so the oldest one is read out first, like a queue. In electronics a FIFO is usually a small buffer that temporarily holds data, such as sensor samples or serial bytes, so a processor can collect it in batches instead of reading continuously.
ODR: ODR means output data rate: how often the sensor produces a new measurement. A higher ODR can capture faster motion or vibration, but it usually uses more power and creates more data for the microcontroller to handle.
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.
RMS: RMS is a way of describing the effective level of an AC signal, such as an audio output voltage. It helps compare audio output levels more meaningfully than a peak voltage number.
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.