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Wearable Demo Reference Design


This complete integration of sensors and connectivity options gives a strong reference design for wearable expertise. It ensures excessive efficiency and low energy consumption appropriate for numerous functions in movement sensing, environmental monitoring, and BLE connectivity.

The Wearable Demo reference design is powered by key parts from Atmel, that includes the Atmel SMART SAM L21 MCU primarily based on the Cortex-M0+ structure and the Atmel SMART Bluetooth answer. Central to this platform is the ATBTLC1000, an ultra-low energy Bluetooth SMART System on a Chip that integrates a Cortex-M0 MCU, Transceiver, Modem, MAC, PA, TR Swap, and Energy Administration Unit (PMU). This versatile chip can operate both as a Bluetooth Low Vitality hyperlink controller or information pump with an exterior host MCU, or as a standalone functions processor with embedded BLE connectivity and exterior reminiscence.

The platform’s core sensors are integral to its performance. The BHI160 sensor integrates a 6-axis IMU with the Bosch Sensortec Fuser core, providing a versatile, low-power answer for movement sensing and sensor information processing. The BME280 sensor combines digital humidity, stress, and temperature sensing primarily based on confirmed ideas. This sensor boasts an especially quick response time for functions requiring fast context consciousness and maintains excessive general accuracy throughout a large temperature vary. Its stress sensor is an absolute barometric stress sensor recognized for its excessive accuracy, decision, and considerably decrease noise. The built-in temperature sensor is optimized for minimal noise and excessive decision, used not just for temperature compensation of the stress and humidity sensors but in addition for ambient temperature estimation. The VEML6080 is a sophisticated ultraviolet (UV) and ambient gentle sensor. All sensors within the community connect with the SAM L21 by means of the SERCOM I2C interface.

It options the SAML21G18B processor at its core. It’s outfitted with an array of sensors, together with the BHI160 movement sensors (accelerometer and gyro) and the BME280 environmental sensors (stress, humidity, and temperature). The VEML6080 gentle sensor measures ambient gentle ranges. The BHI160’s built-in Fuser Core processes uncooked sensor information to generate digital sensor information, supporting features equivalent to sport rotation vector, step detector, gravity, accelerometer, and gyroscope. The platform consists of the ATECC508A for cryptographic operations and LED indicators for operational standing show. Connectivity is offered by the ATBTLC1000, an ultra-low energy Bluetooth® SMART (BLE 4.1) System on a Chip. Energy is equipped by a CR2032 coin cell, and programming is facilitated by means of the Atmel-ICE ARM 10-pin interface. The gadget is CE/FCC licensed and measures 40mm x 30mm, excluding the programming header extension.

Atmel has examined this reference design. It comes with a invoice of supplies (BOM), schematics, and different data. The corporate’s web site gives further information in regards to the reference design. To learn extra about this reference design, click on right here.

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