Tag Archives: capacitive touch

maXTouch U family opens up a world of possibilities for next-gen devices


This new controller family will make touchscreen devices less frustrating and more enjoyable to use.


It’s safe to say that touchscreens have surely come a long way since Dr. Samuel C.Hurst at the University of Kentucky debuted the first electronic touch interface back in 1971. Despite their ubiquity today in just about every device, the technology doesn’t seem to always work as well as it should given recent advancements. As VentureBeat’s Dean Takahashi points out, displays remain frustratingly unresponsive to finger taps, consume a lot of power, and quite frankly, are still pretty bulky — until now.

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That’s because Atmel has launched a next generation of sensor chips that will pave the way to much better (and more delightful) tactile experiences for gadgets ranging from 1.2” smartwatch screens to 10.1” tablet displays. Following in the footsteps of its older siblings, the new maXTouch U family will enable optimal performance, power consumption leveraging picoPower technology, and of course, thinner screens.

More apparent than ever before, the use of touch-enabled machinery has exploded over the past five years. As a result, there has been an ever-growing need to develop touchscreens with extremely high touch performance, ultra-low power and more sophisticated industrial designs with thinner screens. Not to mention, the anticipated surge in wearables has also created a demand for extremely small touchscreen controllers with ultra-low power consumption in tiny packaging. Luckily, this is now all possible thanks to the maXTouch U family which crams pure awesomeness in a 2.5-millimeter by 2.6-millimeter space (WLCSP).

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Designers can now build extremely innovative thin and flexible touchscreen designs using single layer, on-cell and hybrid in-cell touchscreens with intelligent wake-up gestures and buttons. What this means is that, the technology can support entry-level smartphones, slick wearable gizmos, super tablets and everything in between on a full range of stack-ups.

Among the most notable features of the U include low power modes down to 10µW in deep sleep for wearables such as smartwatches, active stylus support, 1.0-millimeter passive stylus support (so users can write with things like pencils on a touchscreen), as well as up to a 20-millimeter hover distance (so that a user can answer their phone call with a wet hand). What’s more, the touch controllers can sense water and reject it as a touch action, and works with multiple fingers — even if someone is wearing gloves.

Binay Bajaj, Atmel Senior Director of Touch Marketing, explains that the recently-revelaed series provides all the necessary building blocks for futuristic mobile gadgetry. The chips are available in samples today, while production versions will be ready in the third and fourth quarters.

“Our expertise in ultra-low power MCUs and innovative touch engineering have allowed us to bring a superior series of devices to market that is truly an innovative collection to drive next-generation touchscreens. We are a leading provider of touchscreen devices to a variety of markets adopting capacitive touchscreens,” Bajaj adds.

Let’s take a closer look at the six new maXTouch U devices:

  • mXT735U is the perfect device for the entry level tablet delivering robust moisture support and excellent noise immunity for touchscreens up to 10.1″.
  • mXT640U supports touchscreens up to 6 inches. This device supports 1mm passive stylus support and thin stack support including 0.4mm cover lens for GFF stack, up to 25mm hover detection and moisture resistance.
  • mXT416U delivers extremely high touch performance including 2.5mm passive stylus, excellent moisture support, noise immunity and up to 30mm large finger touch detection.
  • mXT336U is targeted for mid-range smartphone applications, delivering a perfect balance between performance and form factor.
  • mXT308U is geared towards low-end smartphone applications emphasizing simplicity and robustness.
  • mXT144U is designed specifically for wearable applications. The mXT144U features picoPower with 10uW in deep sleep mode and is the smallest hybrid sensing touchscreen controller packaged in a 2.5mm x 2.6mm WLCSP. This device is the ideal solution for today and tomorrow’s wearable devices.

Report: Automotive touch panel revenues to hit $1.5 billion by 2018


Most touch panels for 2017 car models will use capacitive touch technology, IHS report reveals. 


The explosion of touch-enabled screens used in smartphones, tablets and other consumer devices, along with improvements in touch technology, are increasing the demand for touchscreen automotive displays used for navigation, entertainment and online services, climate control, energy efficiency tracking and other activities.

According to a recent study by research firm IHS, the CAGR for global automotive touch panel shipments will average 18% through 2018, with revenues forecasted to reach $1.5 billion. This includes shipments of factory-installed automotive touch panel systems, aftermarket applications, dealer installations, as well as service replacements.

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IHS notes that though projective-capacitive touch (PCT) technology has been a topic of discussion since 2012, adoption is finally expected to begin in 2015 models, which is leading to the charge for touch-panel shipments. That’s because the role of automotive displays is changing. What was once just a simple way to view information from a navigation system or a car audio system, has evolved into a human-to-machine interface (HMI) for devices of in and out of the vehicle.

Due to improvements in the consumer interface, IHS reveals that most touch panels for 2017 car models will use capacitive touch technology, which is expected to surpass the use of resistive technology over the next two years.

Moving ahead, state-of-the-art cars will surely be equipped with multi-touch capacitive sensors typically found in smartphones and tablets, along with capacitive buttons to create a modern look and intuitive use — all of which will be made possible through Atmel’s comprehensive platforms and solutions for in-vehicle HMIs.

iSkin stickers could turn your body into a touchscreen


These Arduino-compatible sensors will turn your skin into a touch-sensitive interface for your mobile devices.


Sifting through a pocketbook for a ringing smartphone during a meeting can be quite embarrassing. Not to mention, trying to precisely tap out a message on your wrist can draw some attention. While modern-day wearables have given users the ability to glance at their calendar, receive texts and pretty much anything else Dick Tracy could’ve envisioned, the usable interfaces offered by these devices tend to be a bit small, thus making it difficult to accurately select buttons or type an email.

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That may soon be a thing of the past if a new experimental project, which is currently being developed by a team of computer scientists from Saarland University and researchers from Carnegie Mellon University, is able to catch on. Inspired by recent advancements in electronic skin technology, iSkin is a thin, flexible and soft silicone overlay that is worn directly on the skin allowing the human body to act as an input surface for mobile human-computer interaction.

“The human skin is recognized as a promising input surface for interactions with mobile and wearable devices. However, it has been difficult to design and implement touch sensors that can be placed directly on the skin,” the team writes.

The stickers enable a wearer to receive and deliver commands on-the-sly, thereby controlling companion mobile devices just as any other wrist-adorned gadget would. Better yet, should one of them only be needed intermittently, the sensors can be removed, rolled up and easily stowed when not in use. Because of the flexible material used, iSkin can be manufactured in a variety of shapes, sizes and personalized designs.

Pressure

Potential use cases for the stickers include incoming and outgoing calls, controlling music, typing and sending messages, or just anything else typically done on a mobile device. They’re capable of multi-touch functionality and even recognize gestures.

To receive and transmit tactile input, the iSkin houses electrodes sandwiched between the silicone layers. Projected capacitive sensing uses capacitive coupling between the two electrodes, whereas resistive touch sensing relies upon pressure to create a contact through the permeable spacing layer. Bringing a finger close to an electrode reduces the mutual capacitance, while pressure (such as the pressing of one’s finger) creates contact between both electodes and closes the circuit. A black carbon powder connects the electrodes to one another, allowing them to be situated into any design. Meanwhile, the flexible patch is tethered by a ribbon cable to an Arduino-compatible microcontroller (Teensy dev board), which processes the data and drives the sensor.

Layout

“Integrating capacitive and resistive touch sensing, the sensor is capable of detecting touch input with two levels of pressure, even when stretched by 30% or when bent with a radius of 0.5 cm. Furthermore, iSkin supports single or multiple touch areas of custom shape and arrangement, as well as more complex widgets, such as sliders and click wheels,” the recently-published paper reveals.

At the moment, the prototypes are hard-wired to a computer. However, the team aspires to integrate chips that will let the stickers to wirelessly communicate with other output devices ranging from smartphones to health monitors. Intrigued? You can read the project’s paper in its entirety here. By the way, this remind us… what ever happened to the Circet Bracelet?

Manga Screen is a multi-touch display for Maker projects


Manga Screen is a 4.3″ LCD screen with a capacitive touch panel and HDMI input.


Developed by Oslo-based Maker Elias Bakken, the Manga Screen is a high-definition, 4.3” LCD screen. Powered by USB, the capacitive multi-touch screen can be used with any device that has an HDMI output, including a Raspberry Pi, BeagleBone Black, Odroid and Arduino Tre.

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At the heart of the fully open-source project lies an ATmega16U4, along with several other electronic components including a DVI receiver, a capacitive touch panel controller and an LCD screen.

“The resolution is high for such a small screen with 800×480 (WVGA) and the capacitive touchscreen driver used is the fabulous mXT224 from Atmel. It adds a few bucks more than the Chinese copies, but when you touch it, you will know where that extra money went,” the Maker writes.

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As demonstrated by Bakken’s working prototype, the Manga Screen can be a welcomed addition to a wide-range of applications, such as a RepRap 3D printer display, a DIY automated coffeemaker control panel or a monitor for an array musical projects.

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Interested in a high-res screen for your next creation? You can head on over to its official Kickstarter page, where Bakken is well on his way of achieving his kr65,000 goal.

BeoSound Moment plays tunes that suit your mood


The latest innovation from Bang & Olufsen is an intelligent and sociable music system that integrates your music collection and streaming services into one.


Back at CES 2015, Copenhagen-based Bang & Olufsen debuted their incredibly innovative BeoSound Moment, which integrates sound collections and services into a playful music system boasting what is surely the world’s very first touch-sensitive wood interface. As advocates of both capacitive touch and Internet-enabled gadgets, we couldn’t help but to fall in love with this musical masterpiece. This smart device is packed with a number of features, including the company’s PatternPlay feature, which enables the system to learn the listening patterns of its users, suggest music or programs that fit a specific time, memorize preferences, and make listening both familiar and explorative with access to more than 35 million songs from streaming service Deezer.

Bang and Olufsen BeoSound Moment

“Over time, BeoSound Moment will gradually start to know your taste in music, and be able to play what you most likely want to hear, without you even having to ask. Just like friendship, it only gets better with time.”

With just one touch of the elegant oak panel, music begins to play based on a user’s personal preferences. Indeed, the BeoSound Moment comes in two parts: a dock/base station and a wooden-interfaced wireless control. The detachable, double-sided UI enables two different listening experiences. Those seeking a somewhat more traditional, controllable style should adhere to its aluminum panel, which is equipped with a touchscreen for engaging interaction. In essence, it’s a tablet.

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However, flip it over and users will find an entirely look — an oak side donning wheel control designed for one-touch access to exactly the sound experience that fits the listener’s daily rhythm. The beautiful panel of touch-sensitive wood (embedded with capacitive sensors just under a thin layer of veneer) allows user to have their favorite music flowing from the speakers with just one touch on the wheel.

Since the dual-part BeoSound Moment system is compatible with B&O’s entire range of wired and wireless speakers, the device is capable of integrating digital tunes that best suit a listener’s mood. This works depending on how close their finger is to its center, as the very middle selects from a list of only favorites while the outer parameters tempts listeners to check out more adventurous songs. The MoodWheel is divided into a color gamut that ranges from melancholic blue over a passionate red zone to an energetic yellow area. Combined, these two dimensions on the intuitive MoodWheel offer limitless possibilities for defining your selection of music.

Intrigued? We sure were! You can learn more about the system by visiting its official page here.

This is the world’s lowest power capacitive touch solution

We’re excited to announce the new QTouch® Surface platform for capacitive touch-enabled user interfaces. The new QTouch Surface platform builds on the market-proven QTouch capacitive touch button sensing technology supported by Atmel | SMART MCUs. The new solution includes an on-chip peripheral touch controller (PTC), the cornerstone technology that enables higher performance capacitive touch on Atmel MCUs. Consuming less than 4µA, the QTouch Surface technology is perfect for wearables and other battery-powered applications that require a capacitive touch user interface.

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“User interfaces in consumer products such as wearable/IoT devices, remote controls and PC/gaming controls are being driven by the massive adoption of touchscreens in smart phones and tablets,” explained Geir Kjosavik, Atmel Director of QTouch Product Marketing. “Products in this new category require a surface solution with lower power consumption and higher cost optimization that do not require the performance from higher-end touchscreen controllers. The QTouch Surface platform is the ideal solution to support all these requirements.”

The QTouch Surface solution uses only a fraction of the resources in Atmel | SMART MCUs and can be implemented with virtually zero cost since one Atmel controller can be used for both the application and capacitive touch user interface.

Notable features of the QTouch Surface Platform include:

  • World’s lowest power capacitive touch surface control with a wake-up on a surface touch from a standby current down to 4µA
  • Works with all Atmel | SMART MCUs featuring the Peripheral Touch Control using less than 10% CPU processing power
  • Supports multi touch on the following surface size ranges
  • 2.7” with 2mm touch separation (edge to edge)
  • 5.5” with 14mm touch separation (edge to edge)
  • Scan rates up to 100Hz

A demonstration of the new QTouch Surface platform will be available at CES next month inside booth #MP25760 in the South Hall of the LVCC. Meanwhile, the QTouch Surface platform — including the library firmware, software development tool and plug-and-play hardware kits — will also be on display at Embedded World in Nuremberg, Germany in late February 2015.

Ford’s new SYNC will be more like your smartphone

Ford has shared that its in-car infotainment system will be getting an overhaul with the newly-revealed SYNC 3, which will add a capacitive touchscreen, an improved smartphone-like interface, enhanced mobile app integration, and support for Android Auto and Apple CarPlay in the near future.

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First debuting back in 2007, SYNC is Ford’s voice-based car entertainment system that enables drivers to play certain media, connect their mobile devices and audio players, and change the temperature, radio station or make calls via verbal commands. Over the next two years, the carmaker introduced a pair of updated versions, which ushered in new applications including 911 Assist, Vehicle Health Report, as well as traffic, directions and information.

By far, the largest hardware change will be the system’s migration from resistive to capacitive touchscreens. According to Ford, SYNC 3 will feature optimized capacitive screens that offer an experience most consumers are familiar with from their tablets and smartphones. With a quicker response to touch, voice and phone-like gestures, future vehicles will boast multi-touch, pinch-to-zoom and swipe capabilities with modernized graphics.

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“We considered all the modern smartphones and mobile operating systems and created something familiar but unique,” explained Parrish Hanna, Ford Global Director of HMI.

In doing so, SYNC 3 aims to reduce on-screen complexity and prioritize the control options drivers utilize most. As the carmaker notes, a bright background and large buttons with high-contrast fonts for daytime use will help reduce screen washout in the sun. Meanwhile, at night, the display will automatically switch to a dark background to aid in eye fatigue reduction and minimal reflections on the windows.

Phone contacts will be searchable via a simple swipe of the finger to scroll through the alphabet. With “One Box Search,” SYNC 3 users can look up points of interest or enter addresses in much the same way they use an Internet search engine.

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“Simplicity has value,” added Hanna. “Reducing the number of things on-screen also makes control easier and is designed to limit the number of times a driver has to glance at the screen.”

In addition, an updated AppLink functionality will provide drivers with better control of their smartphone applications from the car’s main display. It automatically recognizes compatible apps on a user’s smartphone, and enables them to be controlled by voice and steering wheel buttons. Take Google Now, Apple Siri and Pandora, for example, which will be available to those who access the system in the car through Bluetooth.

“Overall, AppLink is faster, more responsive and easier to find your apps,” revealed Julius Marchwicki, Ford Global Product Manager, AppLink. “The overall design of SYNC 3 allows for better integration with smartphones – resulting in a more user-friendly experience.”

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The Sync software will also have the ability to be updated via a home Wi-Fi network, assuming that the home’s network is in range.

According to Ford, the SYNC 3 is expected to be launched in new vehicles next year. Interested in learning more? You can find the entire press release here.

Speaking of in-vehicle systems, Atmel’s maXTouch family — known for its superior performance and rich feature set — is now qualified for automotive applications, ranging from touchscreens and touchpads (supporting 2 inches up to 14 inches in diameter) used in center stack displays to navigation systems and radio human-machine interfaces (HMIs). Looking ahead, here’s a sneak peek at what the future holds for center consoles.

What will smartphones look like in 2020?

Thanks to Moore’s Law, electronic devices are increasingly packed with more power and functionality, improving our life qualities with more convenience, productivity, and entertainment. Just to put things in perspective, Steve Cichon of Trending Buffalo shows that an iPhone (assuming an iPhone 5S at the beginning of 2014, when his blog was written) can replace $3,054.82 worth of electronics sold in Radio Shack in 1991, according to a flyer post in The Buffalo News.

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“It’s nothing new, but it’s a great example of the technology of only two decades ago now replaced by the 3.95 ounce bundle of plastic, glass, and processors in our pockets,” says Steve Cichon.

As cool as we think our smartphones are today, I dare to say that two decades later by 2035, when people compare their personal electronics (assuming they don’t use the term “smartphones” anymore!) against the current smartphone features, they would be amazed by how big, heavy and slow these electronics are today. If you still don’t get what I mean, take a look at this 1991 Sony Walkman Commercial, and try to recall how cool the Walkman was in 1991.

While I certainly do not have the crystal ball that tells me what kind of personal electronic devices people will be using by 2035, I would like to make a few guesses of what smartphones would look like in just 5 years, say 2020.

User Interface

I believe touchscreen [with touchscreen controllers] will still be the main user interface for smartphones by 2020. While Generation Z are called “digital natives,” I think kids who are born after Generation Z would be “touch natives.” Toddlers and young children playing with iPod Touch, iPhone and iPad today will attempt to touch all display interfaces as their way of interacting with electronics in the coming years. I also believe smartphone interfaces would expand beyond just touch, and there are two possible expansions within five years: gesture controls and voice commands.

Gesture control refers to hand or facial interactions with the smartphone.  Samsung’s Galaxy S4 (with Air View) and Amazon’s Fire Phone (with 4 corner cameras) made interesting attempts for enabling hand and facial gesture recognition, but unfortunately, these features were not very successfully adopted by consumers because they were hard to learn, limited by hardware capabilities, and unreliable or inconsistent to use. But smartphone OEMs will continue improve their designs, and smartphones will eventually be capable of reliably recognize our intentions by tracking our hand or eyeball motions, or facial expressions.

Voice command is widely popular today, but will become a lot more useful in five years. Think of Apple’s Siri, Google’s Google Now and Microsoft’s Cortana, as cloud computing becomes more artificial intelligent with more data and computational power, they will become more dependable for average consumers to adapt. I hope that by 2020, my daily commutes with Apple’s Siri will no longer be worse than talking to my 2-year old son — Siri will help me change FM radio channels or launch a Podcast via Carplay in my dashboard. I will also be able to ask Google Now to order a pizza for me (topped with bacon, pepperoni and sausage, of course) without directly talking to the pizza-shop guy. Google Now will tell me when the pizza might arrive (based on the traffic congestion conditions), and open the door for me through my Nest, which as a Bluetooth connection to my front door’s electronic lock.

Integration

Needless to say, smartphones will be further integrated come the year 2020. Smartphone integration will follow a much similar path as the PC’s integration, except it will take place A LOT faster. Integration doesn’t always mean electronic components will disappear; rather, it can also mean that more hardware performance is integrated into the device. Today’s leading smartphones are packed with a Quad- or Octa-core Application Processor, running between 1.3 to 2.5GHz. By 2020, I’m guessing that smartphone CPUs will be 8 to 16-cores, running between 2.5-4.0 GHz range, (they probably will eat today’s Intel Core i7, designed for high-performance PCs, for lunch.)with 8-10GB RAM and 500-750 GB of storage.

I also believe smartphones will integrate more hardware components for better “context-awareness.” Today’s leading smartphones are easily packed with 10 sensors — gyro, ambient light, accelerometer, barometer, hall sensor, finger scanner, heart rate monitor, among a number of others. I think more microphones (today’s camera usually has at least two microphones) and cameras (again, at least two today) will be packed into the devices to enable improved awareness — 4, 6 or even 8 microphones and cameras are quite possible by 2020. For instance, having multiple microphones enables listening from different positions inside the phone and at different frequencies (i.e. not only voice commands); in addition, it will allow the smartphone to determine its location, its surroundings (whether inside or out) how far it is away from the voice command and even how to improve noise cancellation. Also, having multiple cameras will allow the device to better track facial expressions (Amazon’s Fire Phone is a good example), to capture better 3D and panorama images, or to refocus photos by post-processing (hTC One M8 is a good example).

Further, component-level integration will continue to happen. With increasing applications processor power, the A/P will be able to take over many digital processing from discrete components inside the phone, although I think Sensor Hub will continue to drive low-power, context-awareness tasks while the A/P sleeps.

Display Technology

Do you envision 4K displays (i.e.3840 x 2160) on your smartphone? Today, Apple’s “Retina Display” in the iPhone 5S offers a 326 pixel-per-inch, and many new smartphone displays exceed that pixel density. Smartphone displays are increasing in sizes, moving from 3.2″ and 4″ just a few years ago to 4.7″, 5.2″, 5.5″ and even 6.4”. As the screen sizes increase, as will the display resolution, while keeping the high PPI density.

I think both LCD and AMOLED displays will continue to exist in 2020, as both technologies have their advantages and disadvantages for smartphone applications. From a consumer perspective, I would expect both types of displays to improve on resolution, color accuracy (for example, Xiaomi’s latest Mi4 display has a color gamut covering 84% of the NTSC range, and that’s even better than Apple’s iPhone 5S display), power consumption and thinner assembly allowing for slimmer industrial design.

As smartphones with 2K displays be introduced by the end of 2014, it isn’t unreasonable to say that 4K displays would be used in smartphones, perhaps by or even before 2020.  However, everything has a cost, and the extra pixels that our human eye cannot resolve will consume power from the graphic engine. Would you prefer to trade off some pixel densities with longer battery life? Personally, I think we do not need a 4K smartphone screen. (And yet, I may laugh at myself saying this when we look back five years from now.)

Battery Technology

The thirst for more power is always there. With increased processing capabilities, context-awareness and better display technologies, we can only assume that future smartphones will require more power than what they are carrying today. Today’s top-tier smartphones can package a battery around 3000 mAh. That’s plenty of juice for a day, but consumers always crave for longer battery life or more powerful smartphones with longer video streaming time. Luckily, research on new battery technologies have been increased, thanks to the explosion of portable electronics. I believe there are two types of technologies that will be available and improve our smartphone experiences by 2020:

Battery with higher density: Forbes recently reported that a group of researchers at Stanford University designed a new solution to increase the capacity of existing battery technology by 400%. This is just one of the promising researches we’ve seen in recent years that could one day be deployed for mass production in just a few years. For the same size of battery that lasts for a day of use in 2014, we can expect that smartphones will last for a week without charging by 2020. On the other hand, smartphone OEMs can also select to use a smaller size battery in the smartphone, and in exchange, use the extra room inside the smartphone to integrate other components and features.

Battery with rapid charging capabilities: A gadget-lover’s dream is to get a full-charge of their smartphones within 5 minutes of charging. Today, UNU’s Ultrapak battery pack can deliver a full charge to devices after just 15 minutes of charging itself up. This isn’t to say the technology is ready for smartphone integration, due to various reasons; however, we’re seeing smartphones adopting rapid charging technologies today (such as Oppo’s Find 7) and we should expect that smartphones will have a much shorter charge time thanks to various rapid-charging standards, such as Qualcomm’s Quick Charge 2.0. Several smartphone models have adopted this standard, including Xiaomi’s Mi3, Mi4, Samsung Galaxy S5 and hTC One M8.

Smartphone Camera

Last but certainly not least, I think smartphone cameras will certainly undergo many improvements by 2020. In fact, the smartphone camera performance is one of the features driving smartphone sales. A safe and simple prediction is that camera’s pixel density would continue to increase as CMOS sensor technology advances. Today, Microsoft’s Lumia 1020 has 41 megapixels, yet I don’t see an average consumer needing that many pixels even by 2020. Personally, I would be very happy with a camera that offers 15-20 megapixel — good photographers understand that pixel isn’t the only determining factor for a good camera, as it is only one of the key aspects.

I am not expecting the camera in a smartphone is capable of optical zooming. Instead, I’d much rather have a smartphone that’s light and portable. In fact, today’s smartphone cameras are pretty good by themselves, but there are always improvements can be made. I think the iPhone 5S cameras can be better with image stabilization, the Galaxy S4 camera can be better with faster start-up and better low-light sensitivity, and the hTC One M8 camera can be designed better with more pixels and improved dynamic contrasting.

Here is a my wishlist for a smartphone camera that I would carry around in 2020, and it’s perhaps not the “2020 Edition of Lumia 1020” camera:

  • 20 megapixel with Image Stabilization, perhaps a wide, f/1.0 aperture
  • HDR, Panorama view
  • Excellent white balance and color accuracy
  • Excellent low-light sensitivity
  • Full manual control
  • Extremely short start-up latency, and fast and accurate auto-focus
  • 4K video recording @ 120fps (with simultaneous image recording)

I may not be a fortune teller, but there you go… that’s my prediction for what a smartphone will look like in the year 2020. Would you be interested in spending your hard-earned dough in 2020 for a smartphone with the above spec? Everyone has an opinion on what the future entails, and my idea of a smartphone five years from now are as good as those of the readers of this blog. I think we would all agree that the advancements in technology will continue to improve the quality of lives. As smartphones become more personal and depend ended upon, we’ll all reap the benefits from the smartphone evolution.

 

32-bit AVR MCUs for automotive applications (Part 1)

Atmel’s AVR low-power 32-bit microcontrollers (MCUs) provide higher processing performance, improved accuracy and optimized power efficiency for automotive applications. This facilitates implementation of new product-differentiating features such as advanced control algorithms, voice control and capacitive touch sensing.

More specifically, Atmel’s AVR UC3C 32-bit microcontroller (MCU) include a peripheral event system, precision clocking, and high-performance peripherals. Integrated features – such as secure Flash memory, hardware-based safety mechanisms, the ability to interface directly with analog sensors, and a configurable software framework. All of the above helps to significantly accelerate application development.

“Simply put, the difference in efficiency between 32- and 8-/16-bit systems is substantial: a generic 32-bit multiple/accumulate requires four multiplications and four additions on a 16-bit processor with additional overhead for data accessing,” an Atmel engineering rep told Bits & Pieces.

“Thus, a single 32-bit multiplication could require about 20-40 cycles on a 16-bit processor. On a 32-bit UC3C processor this operation requires only a single cycle supported with a 32-bit pipeline for rapid data access. The availability of an integrated FPU also simplifies application development. The implementation of complex algorithms in particular requires less effort and the wider dynamic range maintains the highest precision.”

According to the engineering rep, implementing complex algorithms using 32-bit floating-point instructions not only increases system accuracy and efficiency, but also helps accelerate the development cycle. Indeed, a wide variety of applications can benefit from the use of a floating-point unit, including motor control and audio applications.

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“Atmel’s UC3C 32-bit microcontroller instruction set is an efficient mix of 16- and 32-bit instructions that allows C compilers to balance performance and code density. Its architecture has been optimized for managing real-time events common to embedded systems while minimizing processing latency,” the engineering rep continued. “The UC3C microcontroller also includes a wide variety of state-of-the-art peripherals and interfaces – such as CAN and LIN – required by automotive control modules (ECU), while also ensuring reliable operation across the entire automotive temperature range in compliance with the AECQ100 specification.”

Atmel AVR UC3C 32-bit automotive-grade microcontrollers can be powered either by a 3.3V or a 5V supply and generally support 5V I/O. This has been achieved by moving to a modified 0.18-micron process technology, which can support higher I/O voltage levels in a reliable and cost-effective manner without any complex and expensive voltage conversion.

In addition to supporting 5V I/O, the UC3C has been designed with a wide range of high-performance peripherals required by automotive applications, which will we discuss in-depth during part two of this series. Interested in learning more about 32-bit AVR MCUs for automotive applications? Be sure to check out part onetwothree and four of this series.

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