Wearables Drive Low Power Demands

320 Wearablese Lead Image for Web

MCUs & Analog ICs Meet Needs

Wearable devices put extreme demands on the embedded electronics that make them work. Devices spanning across the consumer, fitness and medical markets all need a mix of low-power, low-cost and high-speed processing.

By Jeff Child, Editor-in-Chief

Designers of new wearable, connected devices are struggling to extend battery life for next-generation products, while at the same time increasing functionality and performance in smaller form factors. These devices include a variety of products such as smartwatches, physical activity monitors, heart rate monitors, smart headphones and more. The microcontrollers embedded in these devices must blend extreme low power with high integration. Meanwhile, analog and power solutions for wearables must likewise be highly integrated while serving up low quiescent currents.

Modern wearable electronic devices all share some common requirements. They have an extremely low budget for power consumption,. They tend not to be suited for replaceable batteries and therefore must be rechargeable. They also usually require some kind of wireless connectivity. To meet those needs chip vendors—primarily from the microcontroller and analog markets—keep advancing solutions that consume extremely low levels of power and manage that power. This technology vendors are tasked to keep up with a wearable device market that IDC forecasts will experience a compound annual growth rate (CAGR) of 18.4% in 2020.

MCU and BLE Combo

Following all those trends at once is Cypress Semiconductor’s PSoC 6 BLE. In September the company made its public release of the PSoC 6 BLE Pioneer Kit and PSoC Creator Integrated Design Environment (IDE) software version 4.2 that enable designers to begin developing with the PSoC 6. The PSoC 6 BLE is has built-in Bluetooth Low Energy (BLE) wireless connectivity and integrated hardware-based security.

Photo 1 The PSoC BLE Pioneer Kit features a PSoC 63 MCU with BLE connectivity. The kit enables development of modern touch and gesture-based interfaces that are robust and reliable with a linear slider, touch buttons and proximity sensors based using Cypress’ CapSense capacitive-sensing technology.

Photo 1
The PSoC BLE Pioneer Kit features a PSoC 63 MCU with BLE connectivity. The kit enables development of modern touch and gesture-based interfaces that are robust and reliable with a linear slider, touch buttons and proximity sensors based using Cypress’ CapSense capacitive-sensing technology.

According to Cypress, the company had more than 2,500 embedded engineer customers registering for the PSoC 6 BLE early adopter program in just a few months. Early adopters are using the flexible dual-core architecture of PSoC 6, using the ARM Cortex-M4 core as a host processor and the Cortex-M0+ core to manage peripheral functions such as capacitive sensing, BLE connectivity and sensor aggregation. Early adopter applications include wearables, personal medical devices, wireless speakers and more. Designers are also using the built-in security features in PSoC 6 to help guard against unwanted access to data.  …

Read the full article in the December 329 issue of Circuit Cellar

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Fresenius Taps Eurotech Gear for Medical IoT Project

Eurotech announced that Fresenius Medical Care has chosen Eurotech’s IoT Gateways, IoT device middleware ESF and integration platform Everyware Cloud as the hardware and software building blocks for their IoT project to connect globally deployed medical everyware_server_M2M_clouddevices. Given the confidentiality agreements in force, no further financial details were disclosed. Fresenius Medical Care and Eurotech have been collaborating closely to integrate Eurotech’s IoT technologies with both Fresenius Medical Cares’ products on the field and Fresenius Medical Cares’ software applications on the IT side, with the goal of zero changes on both the products and the applications.

According to  Eurotech, the successful result is a solution that enables, in a very secure and effective way, to carry out technical services of Fresenius Medical Care medical devices installed in dialysis clinics worldwide. The challenges associated with the global deployment and servicing of intelligent medical devices are manifold and require the highest levels of flexibility when it comes to the software at the edge. A IoT architecture for distributed medical devices has to offer solid end-to-end security and has to provide local processing capabilities to enable functionality like access to technical data of medical devices and their configuration management. This is achieved by leveraging both ESF andEveryware Cloud in combination with Eurotech’s ReliaGATE Multi-service IoT Gateway.

The IoT device application framework ESF (Everyware Software Framework), speeds up the development and deployment of the specific application or business logic on the IoT edge device. ESF is a commercial, enterprise-ready edition of Eclipse Kura, the popular open source Java/ OSGi middleware for IoT multi-service gateways and smart devices.

Everyware Cloud, the IoT/M2M integration platform interfaces easily with existing enterprise IT infrastructures, offering simple access through standard APIs to real-time and historical data from devices. In addition, this IoT Integration Platform also enables effective remote device management as well as the device life cycle features that ensure a smooth deployment and management of these devices in the field. This IoT/M2M integration platform is also available for on-premises and private cloud deployment.

Eurotech | www.eurotech.com