Smart clothes and wearable technology: Just for professional athletes?

By Thomas Søderholm June 28, 2016

Advances in technology mean that smart clothes are moving away from the preserve of fitness fanatics and heading squarely into the mainstream. But what if our clothes could tell us not only how we’re doing but how they’re doing as well?

The next step for shoes

Activity trackers worn on the wrist can be notoriously inaccurate. We move our hands and arms all the time, whether we’re walking or not, and it’s left to an algorithm to decide whether these movements are recorded as steps or something else. Many fitness companies are starting to provide activity trackers that are attached, or even built into, shoes. This gives a much more accurate picture of actual activity.

With activity trackers built into shoes, the possibilities are there to extend this functionality much further. We tend to keep using shoes long after they should have been replaced. Until there’s a hole in the sole and we end up with wet socks we’re likely to keep wearing them.

As soon as we first wear a pair of shoes, whether it’s a pair of trainers or a hand-crafted pair of Italian brogues, they start to wear. For a while they’re ‘wearing in’ and adapting to our feet but before too long they start to wear out. The material in the insole starts to compress and the sole starts to wear thin.
Most sportswear companies recommend replacing running shoes every 400-500 miles. With an accurate activity tracker this become a much easier thing to do. Most runners will keep track of individual runs but rarely take note of how many miles they’ve accumulated.

Smart shoes could go even further. Sensors in the insole could analyze things such as wear patterns and compression on the cushioning to help consumers choose better running shoes in future that will protect their feet better.

Moisture sensors could indicate if shoes have properly dried out between use, helping to avoid undue wear and tear and build-up of bacteria.

Jackets Keep Themselves Warm

Sensors in smart shirts and jackets can tell us many things about our bodies. Temperature, moisture levels, and muscle stress can all be monitored helping us take steps to correct issues before they become a real problem.

Jackets for sports such as skiing or hiking need to do two main things – keep us warm and keep us dry. Sensors woven into the fabric could alert us to things like microscopic tears that could let in cold air or water and reduce their effectiveness. Users could then get the jacket repaired or replaced before it becomes a major problem.

Spare your blushes

Trousers are prone to wearing out without us noticing. Constant wear along the seams can lead to sudden – and embarrassing – wardrobe malfunctions. Sensors that monitor strain on the seams and wear in the fabric could let us know that we should replace them before something gives way.

Self-protecting sportswear

Helmets and protective gear worn by American Football players are there to reduce the risk of injury and save lives. It’s vitally important that these are replaced if they’re damaged but often it’s not obvious that serious damage has been sustained. Wearing equipment that has been weakened could have very serious consequences.

Sensors in helmets or shoulder pads, for example, could warn users if they’ve received an impact which is likely to have seriously weakened the structure. This could keep players off the physio’s table and on the field making it a very attractive prospect to all contact sports players.

Another group that could benefit from this is cyclists and motorcyclists. On busy roads, a helmet can be the difference between life and death. If a helmet receives a severe impact, it’s recommended that it’s replaced straight away. But multiple small impacts in the same spot – say a cyclist drops their helmet on the floor a few times – could also cause serious damage to the helmet without any visible signs.

Boxers can receive hundreds of hits to the face over the course of a fight. Sensors embedded in a gum-shield could keep track of this impact and have two very obvious benefits. Firstly they will help the boxer know if they’re vulnerable in a specific spot to help them work on their guard. Secondly they can let the boxer know if the gum-shield itself is holding up and protecting their mouth effectively. With real-time monitoring, coaches could swap out the gum-shield during a fight if it starts to lose its protectiveness.

With wearables shifting more and more towards clothing, it’s obvious that the benefits extend way beyond just measuring things about the wearer. The market continues to grow and we could soon live in a world where our clothes order their own replacements!

www.blog.nordicsemi.com

Coilcraft Introduces New RF Magnetics Lab Kit for Electrical Engineering Educators

Cary, IL, USA — Coilcraft has developed a new RF Magnetics Lab Kit to help educators bring practical, hands-on experience into their classrooms and instructional labs. The kit contains a selection of chip and air core inductors, LC filter modules and wideband transformers, and is offered free-of-charge to accredited Electrical Engineering programs.RF Magnetics Lab KitAccording to Len Crane, Director of Technical Marketing at Coilcraft, “The addition of the RF Magnetics Lab Kit is the latest example of Coilcraft’s continuing effort to support the next generation of electrical engineers. Nearly two years ago we introduced our Power Magnetics Lab Kit and the response was tremendous. Since then, we have provided hundreds of the free kits to universities and technical schools around the globe, and the interest continues to grow.”

Coilcraft also offers a variety of other resources to students and educators, including powerful design tools, a deep library of application notes, lab posters, 2D/3D models and other materials. Students can also follow Coilcraft on Facebook to submit photos of their design projects and receive special offers and contest notifications.

For more information on Coilcraft’s student initiatives, contact Len Crane, +1-847-639-6400, lcrane@coilcraft.com.

About Coilcraft

Headquartered outside of Chicago in Cary, Illinois, Coilcraft is a leading global supplier of magnetic components including high performance RF chip inductors, power magnetics and filters. In addition to a large selection of standard components, Coilcraft also designs and builds custom magnetics to fit a customer’s exact electrical requirements.

Engineers and buyers consider Coilcraft a preferred supplier because of its reputation for quality, reliable delivery, engineering support and the superior performance of our products. In independent surveys, engineers consistently rank Coilcraft the number one magnetics company they would recommend to a friend.

Coilcraft
1102 Silver Lake Road
Cary, IL 60013 USA
+1-847-639-6400
Fax +1-847-639-1469

www.ezwire.com

Low Profile Common Mode Choke

The new 0805USBN Series common mode chokes measure just 2.0 x 1.2mm, with a maximum height of 0.93mm, making them the lowest profile 0805 common mode chokes available. They offer up to 6.5 GHz differential model 3 dB cutoff frequency and up to 35 dB common mode noise attenuation across a wide frequency range up to GHz band.

Coilcraft
www.coilcraft.com

 

0805USBN Low Profile Common Mode Chokes

  • For noise suppression in super high speed signal lines: USB 3.x, HDMI 2.0, HDBaseT™,DisplayPort, DVI, etc.; and in high speed differential signal lines: USB 2.0, IEEE1394, LVDS, etc.
  • Up to 6.5 GHz differential mode 3 dB cutoff frequency
  • Up to 35 dB common mode noise attenuation in GHz range
  • Suitable for USB-type C specification 1.0
  • Designed for high temperate applications – 125°C
  • 8 impedance values to meet your specific requirements
  • Refer to Designing Common Mode Filters for design guidance.
  • RoHS-compliant, halogen free. 260°C compatible. Matte tin over nickel over silver-platinum-glass frit terminations.
  • Low profile (<1.0 mm), with a compact 0805 footprint; for an even smaller size, see 0603USB
  • Samples of all our USB filters are available in Coilcraft Designer’s Kit C470

SPECIFICATIONS


Part number1
Click for samples
Common mode
impedance typ (Ohms)
Common mode
attenuation typ (dB)
L2
min
(nH)
DCR3
max
(Ohms)
Isolation
(Vrms)
Irms4
(mA)
10 MHz
100 MHz
500 MHz
10 MHz
100 MHz
500 MHz
0805USBN-121MR_ 2 12 57 0.04 0.5 5.0 14 0.11 250 500
0805USBN-271MR_ 3 27 125 0.09 1.4 10.0 30 0.14 250 500
0805USBN-481MR_ 5 48 231 0.13 3.5 14.7 53 0.22 250 500
0805USBN-701MR_ 7 70 342 0.18 5.3 17.4 77 0.235 250 500
0805USBN-941MR_ 10 94 493 0.30 7.6 21.1 105 0.27 250 500
0805USBN-132MR_ 13 130 697 0.50 10.0 24.4 140 0.32 250 500
0805USBN-162MR_ 17 165 955 0.78 12.1 27.3 182 0.37 250 450
0805USBN-222MR_ 24 225 1310 1.14 14.0 30.0 252 0.63 250 350
 
1 When ordering, please specify packaging code: e.g. 0805USBN-222MRC
Packaging: C = 7″ machine-ready reel
EIA-481 embossed plastic tape (2000 per full reel).
B = Less than full reel
In tape, not machine-ready. To have a leader and trailer added ($25 charge), use code letter C instead.
D = 13″ machine-ready reel
EIA-481 embossed plastic tape. Factory order only, not stocked (7500 parts per full reel).
2 Inductance measured at 100 MHz, with windings connected in parallel, using an Agilent/HP 4286A impedance analyzer and a Coilcraft SMD-A fixture.
3 DCR is specified per winding at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
4 Irms: Current per winding that causes a 15°C temperature rise from 25°C ambient. This information is for reference only and does not represent absolute maximum ratings.
5 Ambient temperature range: −40°C to +125°C
6 Storage temperature range: Component: −40°C to +140°C
Tape and reel packaging: −40°C to +80°C
7 Maximum part temperature: +140°C (Ambient + temperature rise)
8 Resistance to soldering heat: Three reflows at >217°C for 90 seconds (+260°C ±5°C for 20 – 40 seconds), allowing parts to cool to room temperature between.
9 Electrical specifications at 25°C.
Refer to Soldering Coilcraft Components before soldering.
PCB washing: Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. More info.

Narrowband‑IoT: Reaching the devices other technologies cannot

The Internet of Things (IoT) promises us a more connected, smarter world, but also presents a new set of technical challenges including which technology to pick for which use case.

The popular wireless communications methods include Wi‑Fi, Bluetooth low energy and LTE but for those devices that are located in remote or hard to reach areas, one technology in particular is emerging that addresses the challenges of poor signal strength and range limitations. Narrowband IoT (NB‑IoT), also termed LTE Cat. NB1, is a new radio frequency standard that meets the use case constraints of low cost, long battery life and providing reliable operation in poor signal locations.

IoT in the Real World
Narrowband isn’t just a concept; it’s already been deployed, in 3GPP pre‑standard form, in the historic city of Valencia, Spain. Every Valencia water customer has a meter to measure usage and there are more than 1.1 million of them. Reading them is a daunting data collection task that imposes huge manpower costs. Local utility, Aguas de Valencia, has been extremely keen on automating meter reading, but had been unable to turn dream into reality due to the cost of cellular data, high power consumption requiring regular battery changes and poor signal environments indoors. Having heard about NB‑IoT, they conducted a trial with u‑blox, Vodafone and Huawei using u‑blox NB‑IoT modules built into test mobile units located in water meter locations. Meters tend to be located in pretty inaccessible places within buildings, most of them underground in basements, representing a challenging environment for any radio signal.

NB‑IoT was found to be an ideal solution because it offers just the right combination of features. The lower‑frequency narrowband signals have a long range measured in kilometers and offer excellent penetration characteristics of walls, earth and metal conduits. The radio modules are cost effective and simple with power consumption low enough to provide 10+ years of battery life in typical applications. NB‑IoT has relatively low data throughput, measured in tens of kbps, which is tailored to many low bandwidth IoT applications, such as water meters. u‑blox worked with technology partners Vodafone and Huawei to make the trial a success.

Other recent examples of u‑blox NB‑IoT partnership initiatives include two smart parking trials – one with Deutsche Telekom and Huawei, the other with Fangle Technology on China’s Unicom network.

The world’s first NB‑IoT LTE Cat. NB1 (3GPP Release 13) compliant module is u‑blox’s SARA‑N2. Measuring just 16 mm x 26 mm, it is optimized for poor coverage applications, even underground, and is designed to operate between 10 and 20 years on a single‑cell primary battery. Peak download data rates of up to 227 kbps can be achieved, while the peak upload data rate is 21 kbps. SARA‑N2 is designed to support three cellular RF bands simultaneously, suitable for wide geographic coverage. u‑blox nested design architecture allows customers to quickly and easily migrate from existing 2G and 3G modules to NB‑IoT, while enabling future‑proof, seamless mechanical scalability across technologies.

Apart from offering lower device complexity and ultra‑low power operation when compared to conventional cellular radio technologies, NB‑IoT can support up to 150,000 devices per cellular cell. NB‑IoT also provides greater security and freedom from interference, since it uses licensed cellular network spectrum unlike other low‑power wide area (LPWA) solutions that are using unlicensed spectrum.

Getting started with Narrowband IoT
u‑blox has been involved in early stage trials and proof of concepts for Narrowband IoT, covering a range of use cases. Looking ahead we envision a host of new applications for NB‑IoT including automating building and home operations, controlling street lighting, determining when waste bins need emptying, and identifying free parking spaces to name just a few. Further, large‑scale NB‑IoT deployments can be tied into cloud analytics platforms, providing valuable insights for a wide variety of industries and applications.

www.u-blox.com

Nordic-powered modules allow fitness equipment OEMs to easily develop Bluetooth low energy and ANT+ smart products

Wahoo Fitness’ open platform GEM module employs multiprotocol nRF51422 SoC to provide wireless connectivity between fitness machines and smartphones

Nordic Semiconductor today announces that Atlanta, GA-based tech fitness company, Wahoo Fitness, has selected Nordic’s nRF51422 multiprotocol System-on-Chip (SoC) to provide Bluetooth® low energy (previously known as Bluetooth Smart) and ANT+ wireless connectivity for its open platform GEM Module. The module is designed for simple integration into OEM’s fitness equipment and other sports and fitness-related applications.

The GEM Module incorporates Wahoo Fitness’ CSAFE-based software stack, specifically designed to enable fitness machines such as treadmills, exercise bikes, ellipticals, and rowing machines to wirelessly communicate exercise data with iOS and Android smartphones and tablets. The completely open platform allows iOS and Android app developers to easily develop applications that connect and retrieve data from a Wahoo GEM-enabled fitness device. For applications other than fitness machines, developers can use Nordic’s nRF5 Software Development Kit (SDK) to create their own embedded application-specific software.

Based on Nordic’s nRF51422 multiprotocol SoC, the GEM Module has a 12.7 by 19.1 by 2.5mm form factor and offers a variety of peripheral interfaces including UART, SPI, I2C, ADC, and GPIO, as well as an integrated monopole chip antenna. Output power is adjustable up to +4dBm, with a sensitivity of -93dBm in Bluetooth low energy mode and -90dBm in ANT+ mode. It has a line of sight range of 100m. The module’s firmware can be updated over-the-air (OTA) using the Wahoo utility application or via the Serial Wire Debug interface.

“What makes the GEM unique is that all of the capabilities are integrated together in a single solution making it easy for equipment manufacturers to bring GEM-enabled equipment to market in significantly less time than if they had to create their own profile, write software to communicate with their console, and build compatible mobile applications,” says Tim Eskew, Wahoo Fitness Business Development Director. “And the GEM’s open API platform connects a GEM-enabled device to the entire Wahoo app ecosystem.”

The nRF51422 is a powerful, highly-flexible multiprotocol SoC ideally suited for ANT+ and Bluetooth low energy wireless applications. The nRF51422 integrates a 32-bit ARM® Cortex™ M0 microcontroller, 2.4GHz radio, 256kB/128kB Flash memory, and 32kB/16kB RAM on a single chip.

“What we like specifically for the gym-based applications is the nRF51422’s multiprotocol capability supporting ANT+ and Bluetooth low energy. Also its overall power consumption aligns with both battery and line-powered applications which we see as a good fit for the GEM,” says Eskew. “The available memory is plenty for us to run our onboard software and API layer, while the available peripherals also support all of our current uses cases in the gym for the GEM.”

www.nordicsemi.com

Taoglas PA.25A Anam

Taoglas PA.25A Anam is top of the list for many customers needing high efficiency in a small form factor SMD antenna across 2G/3G. This robust hexa-band ceramic antenna delivers surprising efficiency even in urban canyons and is used in many leading global brands.

35*6*5mm Anam PA.25A 2G/3G SMD PIFA Antenna

Anam 2G/3G Hexa-Band Cellular SMD antenna
GSM / CDMA / DCS / PCS / WCDMA / UMTS / HSDPA / GPRS / EDGE
High Efficiency Multi-Band SMD Antenna
35mm*6mm*5mm
First Tier Automotive TS16949 Approved

Product Links

World’s first cellular NB-IoT module combines easy, affordable, global connectivity with over 10 years’ battery life for low data rate IoT applications

u‑blox SARA‑N2 Narrowband IoT module optimized for applications that need to securely communicate small amounts of data over long periods

Thalwil, Switzerland – June 27, 2016 – u‑blox (SIX:UBXN), a global leader in wireless and positioning modules and chips, today announced forthcoming availability of its SARA‑N2 Narrowband IoT (NB‑IoT) module, the world’s first cellular radio module compliant to the 3GPP Release 13, Narrowband IoT (LTE Cat. NB1) standard. Designed for use in applications such as smart buildings and cities, utilities metering, white goods, asset tracking, and agricultural and environmental monitoring, the module will operate for between 10 and 20 years from a single‑cell primary battery. Its 16 mm x 26 mm LGA form factor, using u‑blox nested architecture, facilitates simple upgrades from u‑blox GSM, HSPA or CDMA modules and ensures future‑proof, seamless mechanical scalability across technologies.

The SARA‑N2 module provides secure, private communications over licensed spectrum with guaranteed quality of service. It supports peak downlink rates of up to 227 kbps and uplink rates of up to 21 kbps. Simultaneous support for three RF bands means that the same module may be used in most geographic regions.

The benefits of NB‑IoT over other cellular radio technologies include lower device complexity, ultra‑low power operation and support for up to 150,000 devices per single cellular cell. Most significantly, the technology offers a 20 dB link budget improvement over GPRS to give excellent performance under poor coverage conditions such as underground or inside buildings.

Compared with unlicensed spectrum Low Power Wide Area (LPWA) solutions, NB‑IoT offers greater security and freedom from interference because it uses a licensed spectrum based network. Other advantages include lower latency than mesh networks, thanks to its point‑to‑point topology, the ability to run it adjacent to existing 2G and LTE networks – it needs just 200 kHz of bandwidth – and a higher transmit power limit, which improves reliability and range. It also allows for robust 2 way communication which means that features such as firmware upgrade over the air are achievable. Furthermore, global roaming is possible with NB‑IoT, which is not the case with localized unlicensed spectrum based technologies.

Stefano Moioli, Director Product Management Cellular at u‑blox, commented: “u‑blox has been an early pioneer of NB‑IoT and we’ve worked closely with companies including Vodafone, Deutsche Telekom and Huawei to complete the first successful commercial trials of pre‑standard NB‑IoT in smart metering and parking applications. These trials proved conclusively that NB‑IoT networks operate far more efficiently than GPRS and we’re confident of the technology’s future because of the many advantages it offers over alternative approaches.  We’re therefore pleased to be able to announce the world’s first fully 3GPP compliant module that will enable customers to take full advantage of this exciting technology.”

Samples of the SARA‑N2 NB‑IoT module are currently scheduled for Q4 2016, with full production planned for early 2017.

About u‑blox

Swiss u‑blox (SIX:UBXN) is a global leader in wireless and positioning semiconductors and modules for the automotive, industrial and consumer markets. u‑blox solutions enable people, vehicles and machines to locate their exact position and communicate wirelessly over cellular and short range networks. With a broad portfolio of chips, modules and software solutions, u‑blox is uniquely positioned to empower OEMs to develop innovative solutions for the Internet of Things, quickly and cost‑effectively. With headquarters in Thalwil, Switzerland, u‑blox is globally present with offices in Europe, Asia and the USA.

(www.u‑blox.com)

Find us on LinkedIn, Twitter @ublox, YouTube, Facebookand Google+

u‑blox contact:

Moti Tabulo, Product Manager Cellular, u‑blox

Phone: +44 1763 269749

E‑mail: moti.tabulo@u-blox.com

Spot on: What’s next for personal location based services

By Torbjørn Øvrebekk June 23, 2016

Ever since smartphones first combined internet access and location in the same device, developers have worked hard to create better and smarter services to make lives easier. Emerging personal location based services just around the corner look set to change everything.

GPS gave us a taste of location services

GPS navigation gets smarter because apps can access real-time traffic information allowing it to re-route users around traffic jams. If smartphones are lost or stolen, users can track exactly where they are using location services to help recover them. Users can also tag their belongings so they get an alarm on their phone if they are more than a certain distance away.

GPS can be seen as version one of personal location based technology. Although it provides absolute location, the reliance on sattelites means it’s very power hungry. This is manageable on a smartphone, but for small, low cost battery powered devices such as wearables it’s more of an issue. Also, although GPS is great outdoors, it doesn’t work so well indoors due to physical interference.

Alternatives to GPS

WiFi is a popular solution for locating people or objects indoors. Mapping startup MazeMap relies on the triangulation of WiFi hotspots to pinpoint a user’s location on their interactive indoor maps designed for large buildings such as hospitals, office blocks and universities. However, although lower than with GPS, the power consumption of a constant WiFi connection is still heavy. Perhaps not problematic for a smart phone, but more so for smaller connected “things”. And in less built-up areas with little WiFi coverage, pinpointing a location is much more difficult.

Bluetooth Beacons solve that problem with much lower power consumption, although they are limited to a 30 metre range and best suited, currently, to indoor environments. Beacons can be configured with a static location tag, and placed at various locations throughout a building, to provide an approximation of the location to phones in the area. Typically the accuracy of such a system is poor compared to GPS, but it can be improved by measuring the signal strength of incoming beacon packets, and by using triangulation when multiple beacons are within range. Of course, this works inside buildings as well. Standards already exist for such systems, most notably Apple iBeacon and Google Eddystone.

While static beacons can be used to locate phones, there are occasions where it’s actually the beacon, not the phone, that you want to locate. Tile is an example of a tiny Bluetooth tracker designed to fit on everyday items such as your keys or wallet. Misplace them, and you simply look up their location on the associated smartphone app. While you normally need to be relatively close to a Tile beacon to find it, they also provide a system that allows any phone with the Tile app installed to forward the beacon’s location to the cloud. In this case you could drop your keys on your way to work, and be able to find it as long as another Tile user passes by your keys.

These systems show great promise, but such collaborative location services require a large user base to really be helpful. Large, established brands such as Google and Apple don’t have this problem, and can introduce these services to already popular platforms like Android, iOS or Google Maps.

Looking forward

In fact, Google are developing several location-based initatives of their own, and given their ability to introduce products to a mass-market, we should sit up and take notice.

The Physical Web enables a smartphone user to see a list of URLs being broadcast by Bluetooth low energy (BLE) enabled objects nearby, using the Eddystone protocol. This will allow the person to interact with the object – a parking meter, a poster, a store – directly from a web page. The object does not need a direct Internet connection, relying instead on the phone for Internet connectivity, and the phone doesn’t need a custom app since the BLE connection to the object is handled by the website directly (Google Chrome already provides the Javascript API’s required for this).

Other coming technologies worth investigating in the future are low power mobile standards, such as LTE Cat-M, that would allow beacons and location tags to connect directly to the Internet without the hit to power consumption and cost seen in current 3G and 4G systems.

Also, research into systems for analyzing ‘time of flight’ and ‘angle of arrival’ for incoming radio signals could greatly increase positional accuracy for systems based on Bluetooth beacons or WiFi hotspots.

If you are building location services into your product or service, it’s well worth taking some time to understand location services pros and cons as they are today, then examine where the market is moving. There is always more than one way to achieve your goal, and you can mix-and-match to keep your options open.

Getting Started with Bluetooth Low Energy Development
Download the free eBook now

Topics: bluetooth, location

Torbjørn Øvrebekk's photo

By: Torbjørn Øvrebekk

Torbjørn Øvrebekk is a senior application engineer in Nordic Semiconductor, and has worked for the company since he graduated with a Masters degree in Electronics at NTNU in 2008. Torbjørn has worked mainly with customer support, assisting customers with issues related to embedded software development and RF protocols. He has also worked closely with the Nordic sales group, providing technical assistance in the field, attending trade shows and doing technical presentations at conferences and events.

www.blog.nordicsemi.com

Smart City As Unified Multi-tier IoT Solution

Being initially the driver of the IoT industry, smart city development technologies are rapidly
Published in: Technology

Bluetooth low energy multifunction wearable monitors tracks blood alcohol level, indoor air quality, and more

Bluetooth low energy multifunction wearable monitors tracks blood alcohol level, indoor air quality, and more

The Cling VOC fitness wristband from HiCling Technology uses Nordic Semiconductor’s nRF51822 SoC to wirelessly monitor and report a wide range of health data including heart rate, body temperature, activity, and sleep

Nordic Semiconductor today announces that Shanghai, China-based health wearables technology company, HiCling Technology, has selected Nordic’s multiple award-winning nRF51822 Bluetooth®low energy (previously known as Bluetooth Smart) System-on-Chip (SoC) for its new Cling VOC health and fitness wristband.

The multifunction wristband and smartwatch is equipped with a range of sensors to track health data including heart rate, body temperature, activity, and sleep, as well as a pair of Micro Electro Mechanical Systems (MEMS) MOX multigas sensors to monitor indoor air quality and the concentration of alcohol in the user’s blood. The professional grade sensors are able to detect volatile organic compounds (VOCs) in the air to a precision of 10 parts per billion, and blood alcohol at 1mg per 100ml, making them suitable for a range of personal- and business-safety applications and end users.

In the Cling VOC wristband, the nRF51822 SoC allows captured data to be wirelessly communicated to an accompanying Cling iOS- or Android-smartphone app. From the app dashboard the user can monitor their heart rate and skin temperature history and view their activity (steps, distance, and calories burned) statistics. The app also provides sleep analysis data as well as an overall health assessment based on the user’s lifestyle and personal medical history.

The wearable comes in a 9 by 18mm wristband form factor and is powered by a 65mAh lithium polymer (Li-Pol) battery, allowing the device to operate for up to six days between recharge, thanks in part to the ultra low power consumption of the Nordic SoC. Recharge time is one hour.

“Nordic is well known for its ultra low power short range wireless products, and the nRF51822 was the best choice for us to achieve our super low power consumption and performance goals for the Cling VOC wristband product,” says Richard Chen, CEO and Founder of HiCling Technology.

Nordic’s nRF51822 is a powerful and flexible multiprotocol SoC ideally suited for Bluetooth low energy and 2.4GHz ultra low-power wireless applications. The nRF51822 is built around a 32-bit ARM® Cortex™ M0 CPU with 256kB/128kB flash and 32kB/16kB RAM. The embedded 2.4GHz transceiver is fully compliant with Bluetooth 4.2, the latest version of the Bluetooth specification of which Bluetooth low energy is a part.

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