Tiny Bluetooth low energy proximity key fob runs for a year on a coin cell
June 13, 2012 // Jean-Pierre Joosting
Nordic Semiconductor ASA has announced that Hong Kong-headquartered Dayton Industrial Co. Ltd., a leading OEM/ODM of wireless products has launched a Bluetooth® low energy proximity key fob based on Nordic's µBlue™ nRF8002 System-on-Chip (SoC) that is less than half the size of a credit card.
The nRF8002's class-leading ULP performance and size will enable the Dayton Bluetooth low energy proximity key fob to run for around a year from a regular 3-V CR2025 lithium coin cell battery under typical (daily) usage conditions while featuring an extremely slim (0.5-cm-thick) and compact (4.9- x 3.2-cm) plastic sensor housing that features a single push button and two submerged LED status lights (one red to signal alerts, and one green to signal pairing status) within a product that weighs less than 40-g. There are also additional micro-vibrator and buzzer alert options.
The Dayton production-ready product platform will allow OEMs and developers to develop a whole range of both standard (Bluetooth v4.0 profile-based) and non-standard (uniquely developed) proximity, property location and security applications ('apps') for use with devices that employ Bluetooth v4.0 wireless technology such as the latest iPad and the iPhone 4S.
The nRF8002’s ULP design features peak currents as low as 13 mA and does not require an external 32 kHz crystal. Depending on the duty cycle of the application, battery life from a single coin cell-powered wireless device can extend to months or even years.
Within the latest Bluetooth v4.0 specification there are currently two profiles applicable to proximity-based property location and security. The first, the Find Me profile targets smartphone applications and allows users to pair small — but commonly misplaced — everyday objects with their smartphone in order to locate them via, for example, a Bluetooth low energy proximity key fob that could be used to find a misplaced phone (by pushing a button on the fob to make the phone sound an audible alert), or a misplaced key fob (by pushing a button within a smartphone app to make the key fob sound an alert).
The second, the Bluetooth low energy Proximity profile targets smartphones and other portable devices such as computer laptops and tablets, and further extends the functionality of the Find Me profile to include more advanced in- and out-of-range functions. This could include, for instance, the ability to trigger an automatic security lock-down if a smartphone or laptop/tablet is separated from its owner by more than a certain threshold distance, or wake a sleeping desktop computer as soon as the user sits down in front of it.
"Although these use cases are set to become hugely popular — our Bluetooth low energy key fob design platform will support practically any proximity, property location, or security application an OEM or app developer can come up with above and beyond the standard Bluetooth v4.0 profiles and use cases," comments Tony Chung, a Senior Marketing Executive at Dayton. "This could include, for example, monitoring pets to ensure they don't stray too far away from home by adding GPS functionality to the standard Find Me profile, or developing an assistance alarm that sends a signal to a smartphone to alert someone that the user is in need of help.
Chung continues: "And the low cost nature of this device means it could also be bundled free-of-charge with higher value Bluetooth v4.0 products such as smartphones and tablet computers to attract customers."
"Proximity-based property location and security could be one of the most popular use cases for Bluetooth low energy technology," comments Geir Langeland, Nordic Semiconductor's Director of Sales & Marketing, "because while the popularity of products such as smartphones and computer tablets has exploded over recent years - so has the security risk and potential feeling of panic at having such desirable items packed full of our most sensitive and personal data lost or stolen. This low cost and easy-to-use Dayton product platform should help address such problems and in all likelihood reach into a host of brand new proximity-based applications as well."
Brushless DC servo motors integrate field-oriented closed-loop servo control
December 11, 2013
Nanotec Electronic’s Nema 23 Plug & Drive DC servo motors consist of integrated, brushless DC servo motors with a field-oriented ...
How green is your code?
80V Wide Range I2C Power Monitor Simplifies Challenging System
CUI launches complete range of free 3D power supply models to speed power supply design
Smart buildings drive market for advanced sensors
Step aside MEMS. Here comes NEMS
December 10, 2013
Automotive industry sees innovation in products, not business models
Big moves in chip vendor top 20 ranking
Extendible processors go head to head backed by EDA giants
- 3mm × 3mm QFN IC Directly Monitors 0V to 80V Supplies
- UltraCMOS® Semiconductor Technology Platforms: A Rapid Advancement of Process & Manufacturing
- Adaptive Cell Converter Topology Enables Constant Efficiency in PFC Applications
- Isolated 4-Channel, Thermocouple/RTD Temperature Measurement System with 0.5°C Accuracy
InterviewPerformance monitoring solution helps provide intelligent control of high power systems
A performance monitoring solution designed to enable companies to monitor high power IGBT module systems in locomotive, wind turbine, High Voltage DC and industrial drive applications was unveiled this ...
Filter WizardCheck out the Filter Wizard Series of articles by Filter Guru Kendall Castor-Perry which provide invaluable practical Analog Design guidelines.
Linear video channel
READER OFFERRead more
Internet of Things (IoT) manufacturer Ciseco has launched the Raspberry Pi ‘Wireless Inventors Kit’ (RasWIK), featuring 88 pieces to provide everything a Pi owner needs to follow a series of step-by-step projects or to create their own wireless devices, without the need for configuration or even writing code.
RasWIK has been designed to be highly accessible, demystifying the dark art of wireless and enabling anyone with basic computing skills to begin building wireless devices with a Raspberry Pi. You can create anything from a simple traffic light, to a battery monitor, or even a temperature gauge that sends data to the Xively IoT cloud so billions can access the data.This month, Ciseco is giving away twelve Raspberry Pi Wireless Inventors kits, worth £49.99 each for EETimes Europe's readers to win.
And the winners are...
In our previous reader offer, Farsens was giving away five kits for EEtimes Europe readers to evaluate its FenixVortex, Kineo and X1 wireless, battery free sensor tags.
Lucky winners include Mr A. Neil from the UK, Mr. E. Delvaux from Belgium, Mr Lengal from the Czech Republic, Mr H. Bijlsma from the Netherlands, and Mr G. Pfaff from Germany. All should be receiving their packages soon. Lets wish them some interesting findings with their projects.
December 15, 2011 | Texas instruments | 222901974
Unique Ser/Des technology supports encrypted video and audio content with full duplex bi-directional control channel over a single wire interface.