Acoustic Source Separation Improves Speech Recognition

Overview of acoustic source separation techniques for embedded devices, detailing DNN and cochlear (CASA) methods to improve speech recognition in noisy environments.

Key Specs for Wearables, Condition Monitoring and IoT

Technical guide to selecting accelerometers and MEMS sensors for wearables, CBM, IoT and asset monitoring—covers noise, bandwidth, g-range, power, FIFO and on-node features.

Bioimpedance Measurement for Wearable Systems

Technical overview of wearable bioimpedance measurement: electrode half-cell potential and electrode-to-skin impedance, IEC 60601 limits and ADuCM350 circuit solutions.

Sensor-Based Wearables in Industrial and Factory Environments

Overview of industrial wearables and sensors: advances in AR smart glasses, ambient/proximity sensing, power modules, and field/warehouse use cases, plus deployment challenges.

Challenges for Indoor Positioning in Wearables

Overview of indoor positioning technologies for wearables: GNSS limitations, single-chip receivers, Wi-Fi and cellular assistance, and low-frequency or hybrid localization methods.

Applying IoT Platforms and Systems to Wearable Design

Technical overview of wearables: sensor selection, low-power radios and platforms using Bluetooth Low Energy to enable compact, battery-efficient wearable devices.

Hexiwear Wearable Platform for IoT Design

Overview of the Hexiwear wearable platform: Kinetis K64F MCU, BLE, multi-sensor suite and expansion via MikroBUS; sensor fusion techniques for health, fall and drone applications.

ams TMG4903 Optical Sensor Module for Gesture Recognition

Overview of gesture recognition hardware: ams TMG4903 optical sensor module, evaluation board, design challenges, and lower-cost APDS9960/SparkFun breakout option.

Improving Wearable Power Efficiency with ESR Capacitors

Technical overview of output capacitor ESR in DC/DC converter design for wearables, covering impedance, load transients, capacitor types and EMI trade-offs.

ECG for Wearables: Managing Noise and Power

Technical overview of wearable ECG design using the AD8233 front-end and ADuCM350 MCU: noise mitigation, lead-off detection, evaluation board use, and low-power considerations.

Measuring Heart Rate and SpO2 with MAXREFDES117

MAXREFDES117 reference design for wearable PPG heart rate and SpO2 monitoring using the MAX30102 sensor; includes low-power hardware, Arduino/mbed firmware and test results.

Heart Rate Measurement Solutions for Wearables

Overview of pulse oximetry design challenges, SpO2 and heart-rate measurement, and integration using the MAX30102 module with reference design and sample firmware.

Optimizing Power Consumption in IoT Wearables

DC/DC converter strategies for IoT wearables, analyzing hysteretic control and hybrid converters to balance fast transient response, low quiescent power, and controlled noise.

Managing BLE Peak Power with ICs and Plug-In Modules

Analysis of Bluetooth Low Energy (BLE) peak power profiles and low-power design strategies for wearables and IoT, guiding IC/module selection and energy-harvesting sizing.

Integrating Accelerometers into Wearable Devices

Technical overview of integrating accelerometers into wearable designs, covering MEMS devices (MMA3202), multi-axis inertial modules, interfaces (SPI/I2C), and PCB integration.

Achieving Processor Performance with Existing MCUs

Overview of Darwin MCU family: 32-bit Arm Cortex-M4 devices offering low-power operation, integrated memory, security features, and DSP/FPU support for embedded intelligence.

Packaging Innovations for Wearable DC/DC Converters

Examines SiP integration of DC/DC converters for wearables, comparing package topologies, PCB layout trade-offs, noise, thermal effects, and vendor examples.

Wireless Inductive Charging for Low-Power Wearables

Technical overview of inductive wireless charging for wearables, covering communication, WPC Qi-compatible ICs, coil design and transmitter/receiver integration.

Wireless Charging Solutions for Wearable Devices

Technical overview of wireless charging for wearables, covering inductive/resonant principles, Qi control protocols, and transmitter/receiver coil and chipset components.

Bluetooth Solutions for Wearable Devices

Technical guide to Bluetooth Low Energy for wearable devices, comparing BLE vs BR/EDR, GATT roles and reference designs like nRF51822 and TI CC256x.