> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt # SparkFun Micro Triple Axis Accelerometer Breakout - BMA400 (Qwiic) **Type:** Product page · **SKU:** SEN-21207 · **Brand:** [Sparkfun](https://core-electronics.com.au/brands/sparkfun-australia) **Page:** https://core-electronics.com.au/sparkfun-micro-triple-axis-accelerometer-breakout-bma400-qwiic.html ([markdown](https://core-electronics.com.au/sparkfun-micro-triple-axis-accelerometer-breakout-bma400-qwiic.html.md)) The SparkFun Qwiic BMA400 Micro Triple Axis Accelerometer Breakout offers a 3-axis acceleration sensor perfect for ultra-low-power applications... ## Pricing - **Price:** $17.40 (inc GST) — $15.82 AUD, exc GST - **Quantity discounts:** 5+ $15.35 (exc GST) · 25+ $15.03 (exc GST) · 100+ $14.39 (exc GST) ## Availability & dispatch - Available with a lead time — expect dispatch between Aug 24 and Aug 31. ## How to buy - **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=SEN-21207:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart. - **Verify the cart first:** fetch `https://core-electronics.com.au/cart/link/SEN-21207:1.md` for live line prices (inc & exc GST, quantity discounts applied), stock and dispatch estimates, and totals. Append `/to/{AU-postcode}` (or `/to/{country-code}:{postcode}`) before `.md` for delivery options and prices to that destination. Unknown, retired, or out-of-stock SKUs are flagged. (Query form `cart/link.md?items=...` also works but some robots parsers refuse query strings here.) - **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there. - **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works) - **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt ## Description 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 with no soldering required. 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 < 14.5µA 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](https://www.sparkfun.com/qwiic) 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.* *Qwiic Micro is our smallest I2C-supported board form-factor yet! At only 0.75in. by 0.30in. (or 24.65mm by 7.62mm for metric friends), Qwiic Micro is perfect for projects and applications that have space or weight concerns. With just a single Qwiic connector, Micro boards work great alongside the [Qwiic Multiport](https://core-electronics.com.au/search/?q=18012) or at the end of a Qwiic daisy chain.* [Get Started with the SparkFun BMA400 Micro Triple Axis Accelerometer Guide](https://learn.sparkfun.com/tutorials/sparkfun-triple-axis-accelerometer-breakout---bma400-qwiic-hookup-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 - < 14.5µA 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 wakeup - 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 ### Documents - [Schematic](https://core-electronics.com.au/attachments/localcontent/SparkFun_Micro_Triple_Axis_Accelerometer_Breakout_-_BMA400__Qwiic__103715f82d1.pdf) - [Eagle Files](https://core-electronics.com.au/attachments/localcontent/SparkFun_Micro_Triple_Axis_Accelerometer_Breakout_-_BMA400__Qwiic__18048bb65a3.zip) - [Board Dimensions](https://core-electronics.com.au/attachments/localcontent/SparkFun_Micro_Triple_Axis_Accelerometer_Breakout_-_BMA400__Qwiic__Dimensions_1113217c6b6.png) - [Datasheet](https://core-electronics.com.au/attachments/localcontent/BMA400-Datasheet_28846338eb8.pdf) (BMA400) - [Hookup Guide](https://learn.sparkfun.com/tutorials/sparkfun-triple-axis-accelerometer-breakout---bma400-qwiic-hookup-guide) - [Qwiic Info Page](https://www.sparkfun.com/qwiic) - [BMA400 Arduino Library](https://github.com/sparkfun/SparkFun_BMA400_Arduino_Library) - [GitHub Hardware Repo](https://github.com/sparkfun/SparkFun_Qwiic_Accelerometer_BMA400) ## Images - [Product image 1](https://core-electronics.com.au/media/catalog/product/S/E/SEN-21207-1.jpg)