Bosch BHI385 programmable smart IMU with on-sensor AI-powered analysis

Mouser is now stocking the BHI385 smart inertial measurement unit (IMU) from Bosch. The BHI385 is an intelligent sensor system that delivers accurate acceleration measurement up to ±28 g – enabling precise motion analysis for high-impact events across sports, fitness, and gaming. The sensor combines a gyroscope and accelerometer with embedded AI software and an integrated 32-bit microprocessor, creating a complete programmable system based on Bosch Sensortec’s field-proven IMU platform.

The BHI385 sensor’s embedded AI supports key motion functions, including 6DoF/9DoF sensor fusion, step counting, activity recognition, and gesture detection (single/double/triple tap). Self-learning cyclic gesture recognition allows it to detect repeated motion patterns and adapt them to the individual, recognizing what is being done and how well it is being performed. This enables advanced use cases such as quality-of-movement evaluation in sports or rehabilitation training.

All processing runs on the integrated low-power processor, avoiding wake-up calls to the host CPU. Typical current consumption is less than 500 μA at 50 Hz for sensor fusion, and under 50 μA for simpler accelerometer-based algorithms.

The BHI385 is offered in a compact 20-pin LGA package measuring 2.5 x 3.0 x 0.95 mm³. Low power consumption and embedded intelligence make it a perfect fit for wearables, hearables, and edge AI systems.

The BHI385 IMU is supported by the BHI385 Shuttle Board 3.0. Enabling the evaluation of the BHI385 smart sensor, the Shuttle Board 3.0 also includes a BME688 AI-based environmental sensor, a BMM350 magnetometer, and an onboard pressure sensor. The BHI385 Shuttle Board 3.0 includes essential passive components and provides access to all sensor pins, making it ideal for standalone testing and integration into larger development systems. The Shuttle Board is designed to work with the Bosch Application Board 3.1 sensor prototyping platform. Bosch’s Motion AI Studio supports fast time-to-market, while the Open SDK enables custom machine learning model integration.

https://www.mouser.com

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Mouser presents new eBook on miniaturised electronics design from ADI and Molex

Mouser has announced a new eBook, in collaboration with Analog Devices, Inc. (ADI) and Molex, that explores the forefront of miniaturisation trends shaping our future.

Across nearly all industries, engineers are being asked to deliver more compact designs for a wide range of purposes. Whether they are wearables for consumers and healthcare, instrumentation advances, or industrial automation solutions, today’s systems are expected to occupy less space and consume less power without sacrificing performance or reliability. In 11 Experts on Miniaturised Electronics Design and Applications, engineers from ADI, Molex, and other companies discuss the many challenges designers face while working towards system miniaturisation. The eBook also highlights several products, available at Mouser, that both ADI and Molex offer to support this transition through advances in integration, packaging, and interconnect design.

The EVAL-ADAQ4224-FMCZ evaluation board provides a demonstration and development platform for ADI’s ADAQ4224 μModule Data-Acquisition (DAQ) System-in-Package (SiP) solution. The ADAQ4224 DAQ integrates the critical passive components required in a data acquisition solution into a single component, using ADI’s iPassives technology, minimising temperature-dependent error sources and offering optimised performance.

The EVAL-AD3530RARDZ evaluation board enables prototyping with ADI’s AD3530 and AD3530R Digital-to-analog converters (DACs). The AD3530 and AD3530R DACs include integrated multiplexers that facilitate monitoring of output voltages, currents, and internal die temperature. The devices incorporate power-on reset (POR) circuits that ensure the DACs output power up to and present at 32kΩ to ground until a valid write is executed. The AD3530R also offers a 2.5V, 5ppm/°C internal reference that is disabled by default.

The Quad-Row board-to-board connectors from Molex feature a staggered circuit layout and a 0.175 mm pitch low-profile design for 30% space savings over conventional connectors. These patent-pending connectors offer product developers and device manufacturers greater freedom and flexibility to support compact form factors, making them ideal for augmented reality/virtual reality automotive, communications, IoT, and other space-constrained applications.

The Molex Easy-On FFC/FPC Connectors are ideal for tight packaging applications and offer an overall compact size for maximum space savings, along with contact assurance and easy operation. These connectors are provided in pitch sizes from 0.20 to 2.00 mm, circuit sizes from 2 to 96, and with actuator types that include front flip, back flip, slider, one-touch and low-insertion force, in a right-angle or vertical orientation.

To read the new eBook, visit https://resources.mouser.com

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Infineon expands XENSIV MEMS microphone lineup

Infineon has expanded its XENSIV MEMS microphone lineup with the introduction of the IM72D128V and IM69D129F, two innovative digital PDM microphones designed for exceptional audio performance, energy efficiency, and robustness. Leveraging Infineon’s proprietary Sealed Dual Membrane (SDM) technology, both microphones achieve a high level of robustness against water and dust (IP57), making them suitable for use in demanding environments.

The IM72D128V is distinguished by its top-tier Signal-to-Noise Ratio (SNR) of 71.5 dB(A), making it particularly suited for applications requiring precise low-noise audio pick-up. It operates at ultra-low power consumption, with 430 µA in high-performance mode and 160 µA in low-power mode, which makes it ideal for energy-efficient, battery-powered devices such as high-end headphones. With a footprint of 4 x 3 x 1.2 mm³, it is still small enough to fit most space constraint consumer devices.

The IM69D129F is tailored for compact design, with a footprint of 3.5 x 2.65 x 0.98 mm³, which makes it ideal for space-constrained devices. It achieves reliable audio performance with an SNR of 69 dB(A) and features low power consumption, operating at 450 µA in high-performance mode and 170 µA in low-power mode, contributing to extended battery life in portable devices ensuring extended battery life. Its small size makes it particularly suited for multi-microphone designs in compact systems. The devices can be used in Active Noise Cancellation (ANC) headphones and earbuds, as well as high-quality audio capturing in laptops, tablets, conference systems, and cameras.

The IM72D128V and IM69D129F also support Voice User Interface (VUI) applications in smart speakers, automotive infotainment, IoT devices, and home and industrial automation. Furthermore, both microphones can be used in industrial or home monitoring applications that require audio pattern detection, such as industrial monitoring and home security systems.

In addition, the IM72D128V and IM69D129F are equipped with a low-noise preamplifier and a sigma-delta ADC, providing digital PDM output for seamless integration into modern audio systems. Their shared features include an 11 Hz flat frequency response for precise sound reproduction and a ±1 dB sensitivity tolerance, making them ideal for multi-microphone arrays. Whether used for far-field audio pick-up or portable devices, these microphones enable high-quality audio capturing in challenging environments while enhancing energy efficiency and reliability. Both microphones comply with IEC (60747, 60749) and JEDEC (47/20/22) standards, ensuring reliability and robustness for consumer and industrial applications.

www.infineon.com/mems

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Farnell enhances wireless connectivity offering with Digi International solutions

Farnell is now distributing connectivity solutions from Digi International, a leading global provider of Internet of Things (IoT) connectivity products, services and solutions.

The new relationship is an expansion of Avnet’s existing relationship with Digi and will enhance Farnell’s wireless communications portfolio. It will also enable Digi to utilise the “power of one,” which is the combined strength of Farnell and its parent company Avnet across the product lifecycle. With Avnet and Farnell, customers will be able to find the best solution for their needs around the globe.

Digi International supplies secure embedded technology and connectivity such as system-on-modules, wireless communication systems, and cloud management software to developers in a diverse range of industries, including education, energy, industrial, medical, retail, smart cities and transportation. In every case, it is committed to ensuring that each customer is provided with precisely the right technology for their wireless connectivity requirements.

Steve Ericson, Senior Vice President and General Manager of Digi OEM Solutions said, “We are very excited about leveraging the combined power of both Farnell and Avnet and look forward to expanding our customer base by leveraging Farnell’s expertise and global reach. We have always looked to partner with like-minded companies to ensure our customers have an ecosystem of options that seamlessly integrate, extend value, and bring the future of IoT communications to drive their business.”

Digi’s featured technologies include a range of solutions to support Bluetooth, cellular IoT, edge computing, Fixed Wireless Access, LoRaWAN, 5G, Zigbee Wireless Mesh, and more.

Rebeca Obregon, President, Farnell, said, “We are delighted to grow our distribution relationship with Digi and expand our M2M and IoT product offerings. The alliance will enhance our customer experience, and we look forward to further infusing Digi’s excellent range of solutions with our global distribution presence and marketplace knowledge.

https://uk.farnell.com

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