> **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 # Gravity: BMM350 Triple-Axis Magnetometer Sensor for AR / VR **Type:** Product page · **SKU:** SEN0619 · **Brand:** [DFRobot](https://core-electronics.com.au/brands/dfrobot-australia) **Page:** https://core-electronics.com.au/gravity-bmm350-triple-axis-magnetometer-sensor-ar-vr.html ([markdown](https://core-electronics.com.au/gravity-bmm350-triple-axis-magnetometer-sensor-ar-vr.html.md)) The DFRobot Gravity: BMM350 is a 3-axis geomagnetic sensor with high precision and low power consumption, utilizing TMR tech and Field Shock Recovery for... ## Pricing - **Price:** $15.70 (inc GST) — $14.27 AUD, exc GST - **Quantity discounts:** 6+ $13.56 (exc GST) · 12+ $12.99 (exc GST) ## Availability & dispatch - Available with a lead time — expect dispatch between Sep 04 and Sep 08. ## How to buy - **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=SEN0619:1` (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/SEN0619:1.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 DFRobot Gravity: BMM350 3-axis geomagnetic sensor is designed to **measure magnetic fields** across three vertical axes and functions as a compass. Utilizing Bosch's patented FlipCore technology, this sensor provides accurate spatial orientation without the need for calibration. It maintains compatibility with [the previous BMM150 series](https://core-electronics.com.au/gravity-bmm150-triple-axis-magnetometer-sensor.html) while delivering enhanced performance, including lower power consumption and improved measurement capabilities. The BMM350 is powered by the groundbreaking **TMR (tunnel magnetoresistance) technology**, coupled with a distinctive field shock recovery feature that fortifies the device against interference from external magnetic fields, guaranteeing consistent high-precision measurements. Notably, the BMM350 introduces **I3C communication**, offering advanced data transmission capabilities that enhance sensor integration and reduce wiring complexity. ![BMM350 Magnetometer Applications](https://core-electronics.com.au/attachments/localcontent/1_157681e997f.png) **Field Shock Recovery Function** Powered by TMR (Tunneling Magneto Resistive) technology, the BMM350 features Field Shock Recovery, ensuring stable performance even when exposed to external magnetic field disturbances. This function makes the sensor highly robust, providing reliable and consistent data in dynamic environments. **Improved Sample Rate and I3C Communication** The BMM350 supports a high sample rate of up to 400Hz, delivering real-time data crucial for applications like AR/VR, AGV geomagnetic navigation, and drones. Additionally, its newly added I3C communication protocol enables faster data transmission and allows multiple sensors to be connected on a single bus, reducing wiring complexity and improving overall system efficiency. **High Precision, Low Power Consumption, and Wide Measurement Range** The BMM350 offers a significant improvement in measurement accuracy compared to its predecessor, the BMM150. It operates with an ultra-low current of just 200µA in normal mode at a 100Hz sample rate, making it ideal for battery-powered devices. With a measurement range of ±2000µT across all three axes, it can handle a broad spectrum of magnetic fields, accommodating both high and low field strengths for various applications. **Comparison Table of BMM150 and BMM350** ![Comparison Table of BMM150 and BMM350](https://core-electronics.com.au/attachments/localcontent/TABLE_91997f3303b.png) ### Applications - **AR/VR**: Enhances spatial orientation in augmented and virtual reality environments. - **E-compass**: Offers reliable directional data for navigation devices. - **AGV Geomagnetic Navigation**: Supports automated guided vehicles with precise positioning. - **Drones**: Improves stability and navigation accuracy in aerial applications. ![BMM350 Magnetometer Applications](https://core-electronics.com.au/attachments/localcontent/applications_76658dee561.jpg) ### Specification - Working Voltage: 3.3~5V DC - Working Current: 200µA (Normal mode @100Hz sample rate) - Zero-field Offset: ±25µT - Protocol: I2C - Working Temperature: -40~+85? - Start-up Time: 2.5ms ### Documents - [Product Wiki](https://wiki.dfrobot.com/SKU_SEN0619_Gravity_BMM350_Triple_Axis_Magnetometer) - [BMM350 Datasheet](https://core-electronics.com.au/attachments/localcontent/43714862aeeb6205133509087580c201_140649ac999.pdf) - [Schematic diagram](https://core-electronics.com.au/attachments/localcontent/7f70d310cfca46b412dcfa14fc38a8b1_521437f90f7.pdf) - [Layout](https://core-electronics.com.au/attachments/localcontent/c9e3fc7358c368359cd2df1e3c7ee0f5_10093f0eba5.pdf) - [Dimension](https://core-electronics.com.au/attachments/localcontent/ed17b5d5f7a575f7f580a23daa15c8ea_125501f9be9.pdf) - [Pinout](https://wiki.dfrobot.com/SKU_SEN0619_Gravity_BMM350_Triple_Axis_Magnetometer#target_3) - ## Images - [Product image 1](https://core-electronics.com.au/media/catalog/product/S/E/SEN0619-1.jpg)