BHA250B Low-power Smart Sensor (Accelerometer + μC )
■The BHA250B is a small, low-power smart-hub with an integrated three axis accelerometer plus a programmable microcontroller. Containing pre-installed software and specific algorithms for activity recognition, it is specifically designed to enable always-on motion sensing. It perfectly matches the requirements of smart phones, wearables or any other application which demands highly accurate, real-time motion data at a very low power consumption level. The device integrates our millionfold proven 14 bit acceleration sensor with a MCU - the new Bosch Sensertec Fuser core. It is bringing you the full Android sensor stack inside your devices - even without having an Android OS or an Android environment. Combining this with the built-in computing power and the highly configurable on-board memory the BHA250B offers a low power solution for motion sensing and data processing.
■Software included! Programmable! Extendable!
●SENSOR FEATURES
■The BHA250B provides an ideal all-in-one-solution for always-on sensor applications such as fitness tracking, step counting, indoor navigation and gesture recognition. The integration of the powerful Bosch Sensortec BSX Sensor Fusion library - i.e. software- and motion based algorithms, running on the built-in Fuser core - signifiesntly offloads sensor- and data processing from the main application processor to the low power companion device BHA250. With the dual FIFO buffer for Wake-Up and Non-Wake - Up events, and the support of Android's latest batching feature, system designers can ensure the main application processor is not woken up just to process sensor data.
■In conjunction with the available interrupt lines and the high speed 12C interface, which can transfer up to 3.4 MBit/s, the BHA250B additionally reduces system power consumption. The integrated Fuser core is a 32-bitfloating-point MCU that is optimized to execute sensor fusion and activity-recognition algorithms with ultra-low power consumption. It uses signifiesntly less power than standard MCUs. The result is always-on motion sensing without any compromise.
■The BHA250B implements the full Android sensor stack. Although an Android OS or any other Android environment is not required. The pre-installed software of the device can be updated with optimized and extended features. Even upgrades with totally new features are possible to support future requirements. All by simple firmware updates. In a very flexible way the internal RAM can be used to run the built-in features, to extend them, to place own or third-party code inside and/or to use it for FIFO data buffering. The BSX sensor fusion library, integrated into the ROM, provides a rock-solid solution with the lowest effort and fastest time-to-market. Altogether giving speed plus a high degree of flexibility to the system designer.
■The BHA250B is available in a 2.2 x 2.2 x 0.95 mm³ LGA package, simplifying the integration of the sensor hub into miniaturized PCBs, reducing the bill of material, and saving valuable PCB space compared to solutions based on standard microcontrollers.
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[ Activity recognition of standing, walking, running, biking or in vehicle ][ Step-counting ][ Indoor navigation ][ PDR ][ HMI interfaces ][ gesture detection of motion, tilt, pickup, wake up, glance or other gestures for wearables ][ Augmented reality ][ immersive gaming ][ Tilt-compensated eCompass and orientation ] |
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Datasheet |
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Please see the document for details |
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LGA |
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English Chinese Chinese and English Japanese |
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2021/03/10 |
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Version 12 |
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BST-BHA250-FL000-02 |
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292 KB |
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