Acquired Electronics360

Semiconductors and Components

Bluetooth for IoT Lowers the Power

03 December 2013

European research groups IMEC and Holst Centre, together with Wicentric Inc. (San Diego) have launched an integrated ultra-low-power Bluetooth smart radio for a range of applications. Power consumption can be up to one-fifth that of similar state-of-the-art radios, and the device has a small memory footprint, according to IMEC.

The radio is based on 2.4-GHz hardware developed by IMEC (Leuven, Belgium) and Holst (Eindhoven, The Netherlands) together with Wicentric's Bluetooth protocol stack, known as exactLE.

The radio achieves an energy-per-bit figure of 1.9 nanojoules per bit and is expected to lead the way for Internet of Things applications in areas such as personal health. The radio consumes 3.8mW at 1.2V to receive and 4.6mW to transmit. The measured receiver (RX) noise figure is 6dB, resulting in a sensitivity of -98dBm for Bluetooth low energy.

Wicentric's software solution includes exactLE Link, a portable and efficient link layer for Bluetooth Smart and Wicentric's exactLE stack and profiles. The exactLE is designed for efficient execution on CPU cores running at low clock speeds. The software comes with profiles for applications such as health monitors and personal fitness devices. It can fit into as little as 45 kbytes on an ARM Cortex-M0 running at 12- to 16-MHz clock frequency, IMEC said.

The combined radio and Wicentric software is available for licensing.

Related links:



Powered by CR4, the Engineering Community

Discussion – 0 comments

By posting a comment you confirm that you have read and accept our Posting Rules and Terms of Use.
Engineering Newsletter Signup
Get the Engineering360
Stay up to date on:
Features the top stories, latest news, charts, insights and more on the end-to-end electronics value chain.
Advertisement
Weekly Newsletter
Get news, research, and analysis
on the Electronics industry in your
inbox every week - for FREE
Sign up for our FREE eNewsletter
Advertisement

CALENDAR OF EVENTS

Date Event Location
30 Nov-01 Dec 2017 Helsinki, Finland
23-27 Apr 2018 Oklahoma City, Oklahoma
18-22 Jun 2018 Honolulu, Hawaii
Find Free Electronics Datasheets
Advertisement