Tag Archives: AVR

Ben Heck’s glue gun has Atmel under the hood

It’s probably safe to say that most Makers have experienced bad glue gun days. You know, the kind of day that start off nicely enough, only to be ruined by incessant dripping all over the workbench and basement floor. Some of us have even muttered “I bet this doesn’t happen to Ben Heck” under our collective breaths.

As it turns out, master modder Ben Heck probably hasn’t suffered from a bad glue gun day since designing an innovative device that HackADay’s Brian Benchoff describes as “more like an extruder from a 3D printer” than your typical dispenser.

“By far, the most difficult part of this project was the glue stick extruder. For this, Ben used a DC motor with a two-stage planetary gear system,” Benchoff explained.

“This drives a homemade hobbed bolt, just like the extruder in 99% of 3D printers. The glue stick is wedged up against the hobbed bolt with a few 3D printed parts and a spring making for a very compact glue stick extruder.”

On the electronics side, Ben included an Atmel-based AVR board, a thermistor attached to the hot end of the glue gun, a solid state relay for the heater and analog controls for speed /temperature settings.

“The finished product is actually pretty nice. It lays down consistent beads of hot glue and thanks to a little bit of motor retraction won’t drip,” Benchoff added.

We couldn’t agree more!

interview-icon-mcuwireless-atmel-magnus

1:1 Interview with Magnus Pedersen of Atmel

TV: What do you do? How are you contributing to the realization and maturation of the Internet of Things (IoT)?

Atmel-MCU-Wireless-Magnus-Pedersen

Magnus Pedersen with the Philips Hue (a connected IoT enabled smart device). The Philips Hue Wireless Light Bulb promises full control of its functions over Wi-Fi, including per-light brightness and color settings, remote operation and geofencing capabilities. In addition, Philips includes a powerful GUI-driven app to custom tune lighting in nearly any environment.

MP:  I am currently working on new ultra low power wireless devices and systems compliant with the IEEE 802.15.4 standard, which supports wireless applications such as ZigBee and IPv6/6LoWPAN. Providing standards based reference designs and implementation helps our customers bring IoT devices quickly to the market.

TV: What products do you see becoming the potential glue for Internet of Things embedded designs?

MP: IoT in my mind is all about connectivity and there is a major trend towards wireless. There are many standards competing for designs in the IoT space, but I believe low power solutions like ZigBee, Bluetooth Smart and Wi-Fi will grab the lion share of the market for IoT devices.

TV: What are some of the challenges in building out MCU Wireless and Wireless/RF enabled devices to support enterprise initiatives?

MP: The primary challenge is the lack of standards for the upper layers, and to some extent, lack of infrastructure and gateways to gather data from the IoT devices – bringing the data back into the enterprise servers for analysis.

TV: What’s your favorite MCU wireless device and why?

MP: My current favorite is Atmel’s ultra low power family of wireless microcontrollers. It’s single die design, offering a high level of integration. Plus, it is designed with ultra low power consumption in mind. The ATmegaRFR2 family is quickly grabbing market share in some relatively new markets like wireless lighting control. Major players are putting a lot of efforts into ZigBee Light Link compliant systems these days.

AT256RFR2-EK

AT256RFR2-EK

TV: Can you think of a reference design and various other solution sets that have helped a customer realize his or her vision of embedded architecture and design? Specifically, one that meets all design and BOM requirements – while also exceeding quality and maximizing in B2B as well as customer end to end satisfaction?

MP: Atmel has been active in the ZigBee community for many years. We have certified ZigBee Stacks and referenced implementations for firmware and hardware that we are sharing with our customers. We have a very open policy to share source code, and we are even sharing our hardware design files for our customers to use, either as is, or modified to customer needs. This way, customers can leverage years of R&D that have already been invested in the reference designs – all while moving efficiently through evaluation, prototyping and actual products ready for mass-production.

TV: Is there any advice you can offer to our readers who are forced to make tough decisions when it comes to schedule and embedded projects? For designers, architects and manufacturing managers?

MP: Learn from the mistakes of others. You do not have time to make them all yourself! Make sure you engage with suppliers that have been in the game for a while and are willing to share past experiences in terms of hardware, communication stacks and reference designs. Relying on and working with an experienced supplier will save you from some of the traditional pitfalls and challenges in wireless designs.

TV: There are so many standards related to connectivity. I can imagine the early web and many early technology paradigms in similar nascent scenarios. Which protocol and stack do you endorse as the communicator for IoT embedded designs? Does it matter?

MP: I think you’re right – the IoT is still in it’s infancy and there are still quite a few standards competing for the same applications. In the ultra low power domain IPv6/6LoWPAN is promoted by the IPSO Alliance and the ZigBee solutions promoted by the ZigBee Alliance is now fairly mature and ready for prime time. A couple of years ago the smart energy domain was very interesting, but the fastest growth today is within wireless lighting control and home automation. Do a search for “Philips Hue” and you can see some of my favorite applications right now.

TV: IoT refers to connecting literally everything to the Internet. Do you agree with this sentiment? How soon do you think this will become a reality?

MP: Yes – I do agree. And that means we are talking about a set of solutions ranging from handsets and tablets to even smaller embedded and highly specialized devices with years of battery lifetime. We’re even seeing battery-less devices being driven by energy harvesting techniques.

TV: Is the Internet of Things going to be the biggest leverage point for IT as well as valued added chain to many industries? If so, what are some of the business challenges?

MP: IoT represents huge opportunities for existing industries and it will also represent great opportunities for startups to create new business. The latest forecast provided by Gartner indicates that there will be up to 30 billion connected devices by 2020, resulting in  $1.9 trillion in global economic value-add through sales into diverse end markets. Those are big numbers!

TV: Will competing communication standards get into the way of IoT emergence? Does lack of agreement equate to limited economies of scale? Is there a risk associated to choosing the wrong MCU Wireless device?

MP:  I do not think competing standards will create any issues. Some standards will fit better than others, and especially in consumer applications growth will be driven primarily by consumer demand, rather than standardization bodies or organizations. There is an obvious risk for the product vendors tied to this – selecting the wrong standard might prohibit growth and represent a fatal decision for both startups and even established companies.

TV: IoT is obviously about more than just connecting your toaster. What are some some examples for big industries and markets where IoT can bring added value and revenue? Explain at least to a B2B customer point of view for a Fortune 500?

MP: IoT is about making everyday life easier for everyone. It’s about the introduction of the smart home, HVAC and lighting solutions coming online. It’s about alarm systems and doorlocks and cameras – everything coming online. It is also a story about a generation of people being always online, almost to the point of being addicted to internet-access. I recently saw an update to the Maslow’s hierarchy of needs indicating that WiFi access is now becoming the most important requirement, perhaps even more important than food and water. I thought it was funny, but yes, there is probably some sense of truth in this as well – at least for some people.

Figure: Maslow 2.0

Figure: Maslow 2.0

 

It might not fair to give one example of products or companies, but if you look at communities like Kickstarter and search for IoT projects, there are an overwhelming number of ideas and projects.

TV: Is the IoT hype going to mature and actually become mainstream with an unfolding of emergent products that redefine the shape for products and services offered to a company? If so, tell me about some of the challenges and what can be done to make this transition easier?

MP: The IoT hype is going to mature and there will be new businesses in data collection, data transfer and data storage. New businesses will also be build around data analysis of  smartphones and tablet applications.

TV: Have you heard of Amara’s law?  We tend to overestimate the effect of a technology in the short run and underestimate the effect in the long run. What are the potentials in the short/long term for Internet of Things as we move forward?

MP: Devices that communicate with each other enable new opportunities. This can be a device(s) within a limited geography or area, while in the longer term these devices will be connected to the cloud and can then be accessed from anywhere.

TV: Describe some of the technology partnerships and reference designs that can act as mentors and education models for engineering teams seeking to revamp/evolve their products into the world of connectivity.

MP: Atmel is involved with numerous partners in the IoT domain. We’ve enjoyed long-term partnerships with standardization bodies such as IETF and IEEE, as well as the ZigBee Alliance. Atmel is also teaming up with marketing organizations such as the IPSO Alliance and The Connected Lighting Alliance. As a silicon vendor, there is also a need for additional resources at the application level and even hardware reference designs. Over the past few years, we’ve teamed with companies like MeshNetics in the ZigBee domain (their IP was acquired by Atmel in 2008), and Seninode for their embedded IPv6/6LoWPAN solutions. (Sensinode was recently acquired by ARM). A general goal is to provide complete reference designs for both hardware and firmware in order speed the design process on the customer side, and it is also the general idea that these designs should be available as open source.

TV: What are some of the challenges associated with extending the typical product to a connected product? What are the design constraints and challenges that can be learned from one another?

MP: Atmel recently conducted an IoT survey with our key customers, revealing few technical challenges. The evolving standards enable new businesses, but it also broadens the competition.

TV: What sort of recommendations and technical advice do you offer to help core engineering teams and architects build highly connective products that can be designed and produced in the  highest quality and lowest BOM available?


MP:
Being responsible for the low power wireless product line in Atmel, we’re bringing out standard compliant wireless solutions including RF transceivers, wireless microcontrollers, communication stack and profiles, and even certified hardware reference designs to kickstart customer projects and bring them quickly to market.

TV: What are you currently working on and most excited about?


MP:
As a marketeer for a large microcontroller and touch company, I have the opportunity to engage with products and solutions that are going to be introduced in the near future. Products that don’t exist yet – I find that part very exciting

TV: Are there any people or books that have inspired you lately?

MP: Steve Jobs. It is really amazing how he created killer products and applications, even thought we didn’t know that we wanted or needed them. The iMac, iPod, iPhone, iPad, and the Apps-store… Steve changed the world of handsets from Nokia/Blackberry dominance to the handsets as we know them today. I have also watched the speech he gave for Stanford University graduates back in 2005 many times. Steve Jobs urged the students to pursue their dreams and see the opportunities in life’s setbacks — including death itself. I think this was a really great speech in the sense that he asks us to think about what we really want to achieve in life, knowing that death is the only destiny we all share – no one has ever escaped it.

TV: How can we establish and negotiate technological priorities? In a world of limited bandwidth, the growth in connectivity will challenge our current network capacity to cope with data. We need a better way of understanding which services should be prioritized. For example, how can we make sure vital medical data or pluggable Internet of Things devices aren’t slowed by streaming and IoT enabled loose end points?

MP: I wouldn’t be too worried about this. Network capacity will continue to scale and various security mechanisms will deal with priorities and separate the vital networks and applications from the less critical ones.

TV: How can we take a long-term perspective on services and objects? We currently design for beginnings – getting people connected and tied into a system. How can we make sure people end relationships with service providers as easily? As more big-ticket items become connected (cars, fridges etc) and are sold on to new owners and users, this becomes increasingly important.

MP: As “things” becomes connected more and more consumers will make use of the new applications and systems. Ease of use and the willingness to change will be the keys. The consumers are a challenging set of customers as they will not accept systems and application not stable enough or easy to use. Companies offering such products will simply fail.

TV: How can we balance aspirations for the IoT with the reality of what it will be able to deliver? There are strong tensions between the aspirations and our vision of a technological future and the pragmatics of our everyday lives.

MP: I do not agree to the statement that there are strong tensions. We see enormous activity from entrepreneurs in the IoT space these days, and yet I think that this is just the very early beginning of a new mega-trend in the industry, as well as applications and services being provided to the consumers. Some of these ideas will fly and become great products, others will fail. And again, I think the consumers will be the judges when it becomes to the decision of what will be a success story and what will fail.

TV: Who represents who? Who stands up for, educates, represents and lobbies for people using the IoT or connected products? Is this the role of people centered designers? As a product extraordinaire, how can you help companies bring Internet of Things devices or connected smart products to life?

MP: That’s a really good question! With the indications I already mentioned from the analysts, (predicting a $1.9 trillion market in 2020), there are many groups and communities scratching their heads trying to figure out how to get their piece of this big pie. Some of the drive will come from the industry promoting their technology, but there will also be IoT solutions being demanded and pushed for by the consumers themselves.

TV: Who are the people using it? How do we define the communities and circles that use each product and their relationship to each other?

MP: As with most new products and solutions, quite a number of initiatives will be rolled out in high end products first. Some solutions are maybe more the limited audience of tech-freaks, but IoT is rapidly becoming a reality in everyones lives.

TV: What can we learn about IoT in everyday business communication, product design and product emergence?

MP: IoT opens up a huge space of new solutions, systems and products. We will move into a world of smarter devices, where the devices themselves are capable of communicating with other IoT devices. Some of these devices will even make decisions to interact with and control other devices without any input from human beings. Just look at the car-industry. High end cars are now able to park without a driver, they can position themselves in the lane, keep distance from the vehicle in front, and we’re about to get a fleet of cars that are able to communicate with each other, making decisions on our behalf. Some cars are also equipped with systems for automated emergency calls and even report the exact position it is calling from. These are examples of systems already available. Given the fact that the devices are connected they can also be reprogrammed to change behavior without any need for major hardware updates. This offers flexibility in design and helps keeps the platform up to date before a new hardware product design cycle needs to be kicked-off.

TV: How does rapid prototyping help drive new product developments and how does it fit with a people-centric or customer-centric methodology? How can government nurture efficiencies or disruption? Is it their role to help adopt innovation for the end customer?

MP: Rapid prototyping enables shorter development cycles, but it can also be used to spin multiple prototypes quickly to test various options and product configurations. This way you can execute modifications and changes early in the development stage and avoid costly redesigns at a later stage. This might represent the difference between a project failure and a successful product. Personally, I think governments should play an active role in innovation, making sure startups and even established companies have an environment where they can achieve sustainable growth. In the past we’ve even seen governments actively funding IoT projects during economic downturns, like what US government did back in 2009 – feeding hundreds of billion of dollars to the industry in order to create new jobs. Some of these funds went into smart energy projects rolling out smart meters as we have already seen in California.

TV: How can we track “Things” and what will this tell us about their use?

MP: There are a number of ways to track “things,” ranging from traditional GPS technology to various methods of range measurements and triangulation algorithms. This provides useful information about the device, or its owner, and can be used in many ways. I already mentioned automated emergency calls reporting a vehicle’s position, but the number of applications benefiting from location (positioning) services is really unlimited. From the retail industry for example, we see an increased demand for such services in connection to targeted commercials for each and every customer, as well as monitoring customer behavior in a shopping mall to maximize sales.

TV: What are the new interfaces and dashboards that will help people to interact with the IoT? How important will the distinction be between devices equipped with a screen (touch, etc) and those without? How does this play a role in the latest features of Atmel’s microcontrollers and microprocessors?

MP: User interfaces are extremely important. These interfaces have quickly evolved from traditional button and screens, to the touchscreen technology as we know it today. Touch screens and their related applications and user interfaces has proven very easy and intuitive to use, so it is quickly becoming the de-facto standard. This is obviously also the reason why Atmel as a company has invested heavily in touch technology over the last few years, ranging from capacitive buttons, sliders and wheels, to small and large touch screens. As more and more products utilize this technology, capacitive touch technology is rapidly becoming a standard building block in all Atmel microcontrollers.

TV: Who should ask where potential pain is in the business innovation belt? Is it the designer or business manager, or both?  Do we create value and value chains that reward creators or just end user customers? How can the designer and product creativity map to microcontroller functionality and capabilities?

MP: I think this needs to be reviewed by all parties involved. Innovation is an interactive process involving everyone from the designer to the consumer. Good products will also create value for everyone involved in the process – from the design kickoff until there is a finished product in the hands of the consumer. Selecting Atmel as a design partner ensures access to a family of microcontrollers capable of scaling in terms of resources and peripherals such as wireless connectivity and touch enabled user interfaces. It is a very important strategy for Atmel to be positively aligned with the customer when defining roadmaps and the next generation of microcontrollers. The only way we can make sure we have the right technology available at the right time is to define our future roadmaps in close cooperation with our customers.

Two Atmel chips in the new Microsoft Surface 2 tablet

Crack Atmel sales engineer Stuart Cording brought to my attention a teardown of the new Microsoft Surface 2 tablet. While it looks very much like the legacy Surface RT, it is a complete redesign. There is another nice teardown over from my pals at iFixit.

Surface_2_teardown

The Surface 2 internals are a complete redesign from the Surface RT (courtesy iFixit).

I was delighted to see that the Surface 2 contains two Atmel chips. There is one of our high-performance touch controller chips, the mXT1664S S-series, and our 32-bit AVR chip, the AT32UC3L0256. I have a soft-spot for the AVR 232-bit UC3 chip. It’s got all the cool peripherals and low power from the XMEGA family, but it is a 32 bit chip. I know everybody loves ARM chips and we make a whole bunch of ARM architecture chips, including the SAM D20, but UC3 is a pretty sweet little chip itself, as evidenced by Microsoft’s selection of it in this cost-sensitive consumer application.

The S-series touch chip is a capacitive touch controller chip that provides high performance. It is based on the 32-bit UC3 AVR part, so if you want to write assembly code, you only have to learn once instruction set to use both chips that Microsoft picked.  Look to see our T-series chips start to show up on tablets. It raised the performance bar even higher, with precise 0.2mm stylus accuracy, as well as hover and gloved-hand multi touch. We did a little video demo and I asked the engineer if it could do multi-touch with one glove and one stylus and he proved it could.

So keep an eye out for more Atmel touch hardware in tablets, phones, and car dashboards. We had one engineer tell us that while we did have superior hardware, our touch algorithms were also far superior. So you can image how good you can make your display with good hardware and firmware from Atmel.

Single wire communication, with power too

I don’t like the term “single-wire communication, since you always need a ground path. My buddy Joe Betts-Lacroix worked on a system at IBM Research where if you shook hands with someone, your PDA (personal digital assistants) would exchange information like your business cards. The “one wire” was your handshake, and the return path was your body’s capacitance to earth.

Most times when you see “one wire communication”, they really mean two wires, they just don’t count the ground return as a wire. No matter, I still think this is a great technology. So I was delighted to see that Dick Cappels had a great article in Circuit Cellar on implementing a one-wire system using an Atmel ATmega8515 microcontroller.

Single-wire-communication

You can tell Dick Cappels is the real deal since he actually builds the one-wire circuit he describes in the article.

This is Dick’s vamp off the Maxim one-wire products that send power and communicate to a device over a single wire (not counting that return path). This was dreamed up by Dallas Semiconductor, before Maxim bought them in 2001. What I like about Dick’s solution, besides his using an Atmel MCU, is that for a couple of cheap parts, you can do one-wire communications with any peripheral made by anyone, as long as you go slow enough. He calls it analog communication, which I also love.

This does not send a lot of power along with the bits; in fact, you don’t have to send any power if you don’t want to, but you should be able to scale things as needed. It is a subject near to my heart, since I dreamed up a system a few years ago to send power to a motorcycle headlight and communicate to the switches and gauges all over one wire. I will check out Cappel’s design, since we can all learn from each other.

Now a word about Circuit Cellar. You can read that blog post I linked to above, but the article itself is behind a paywall. I can attest, Circuit Cellar is worth every dime if you are a system engineer that is interest in hardware, firmware, and even mechanical hacks. It’s a little on the hobby side, but nobody will do your engineering job for you for 30 or 40 bucks a year.

I mentioned a Circuit Cellar article on a homebuilt DNA sequencer a while back—and I say it again, subscribe and pay the bucks for this great magazine. I thing they have a money-back deal, and best of all, for 230 bucks or so you can get all the old issues on a memory stick, and then add your pdf issues to that stick. Do be aware that it costs extra to get both print and pdf versions.

Atmel-powered 1Sheeld (ATMega162) hits Kickstarter

Integreight’s 1Sheeld – powered by an ATmega162 MCU – is an easily configurable shield for Arduino boards. Essentially, 1Sheeld connects to a mobile Android app that allows users to take advantage of various smartphone features including the display, gyroscope, accelerometer, magnetometer, GSM, Wi-Fi and GPS.

“Our product consists of two parts. The first part is a shield that is physically connected to your Arduino board and acts as a wireless middle-man, piping data between Arduino and any Android smartphone via Bluetooth,” an Integreight rep wrote in a recent Kickstarter post.

“The second part is a software platform and app on Android smart phones that manages the communication between our shield and your smartphone and let your choose between different available shields. By doing that, you can use 1Sheeld as input or output from Arduino and make use of all of the sensors and peripherals already available on your Android smartphone.”

So what can you do with 1Sheeld? Well, according to Integreight, “the sky’s the limit.”

“You have a powerful Android smartphone that can be used to control your RC car, tweet when plants are thirsty and have fun playing with your friends. This is just a fraction of what you can actually do with 1Sheeld, [as the] possibilities are endless,” the Integreight rep explained.

“And you can hook it up with Tasker! Of course you can control your home with your phone and Arduino, like controlling heat, ventilation and air conditioning, yard watering, pet feeding and the list goes on. However, we’ve integrated a plugin to Tasker on Android, by linking Tasker to the hardware; you get a whole new experience of home automation. You can use any hardware event to trigger an action on the phone or vice-versa, you can use a phone event to trigger an action on the hardware.”

On the software side, 1Sheeld is running a custom version of the Firmata protocol which allows the microcontroller to quickly scan each pin of the Arduino and report any status change to the app.

“You can use this functionality out-of-the-box without the need for our library. There is another mode also which relies totally on the Serial peripheral of the Arduino (Pins 0,1),” said the rep. “Here our library comes in handy, we built a protocol above the Firmata protocol to send huge amount of data to a specific shield on our app, that allowed us to implement LCD, Twitter, Seven Segment – with only two pins from Arduino instead of taking a whole port.”

Aside from the embedded ATMega162, key technical specs include:

  • Standard HC-06 Bluetooth adapter (Bluetooth 2.1)
  • Range up to 30 feet
  • 16 MHz operating frequency
  • Communicates with Arduino via UART

Interested in learning more about the Atmel powered 1Sheeld? You can check out the project’s official page on Kickstarter.

High altitude balloon tracking with the ATmega644

A Maker by the name of Ethan (and team) recently designed a low-cost open hardware/software high altitude balloon tracker with sensors that effectively form a mesh network with a master node.

The above-mentioned platform – powered by Atmel’s ATmega644 microcontroller (MCU) – is equipped with an onboard GPS module (NEO-6M), a micro SD card slot, a 300mW APRS (144.39MHz) transmitter and convenient headers to plug an XBee radio.

As HackADay’s Mathieu Stephan notes, the hardware is tasked with obtaining wireless data from various slave platforms, storing it in the uSD card while transmitting the balloon position via APRS along with other data.

“It’s interesting to note that to keep the design low-cost, they chose a relatively cheap analog radio module ($~40) and hacked together AFSK modulation of their output signal with hardware PWM outputs and a sine-wave lookup table,” Stephan explained. “The slave nodes are composed of ‘slave motherboards’ on which can be plugged several daughter-boards: geiger counters, atmospheric sensors, camera control/accelerometer boards.”

Interested in building your own Atmel-powered modular high altitude balloon tracker with mesh networked sensors? You can check out the project’s official page here.

Peel-and-stick electronics with Circuit Stickers

Circuit Stickers are peel-and-stick electronics for crafting circuits. Makers can easily build glowing, sensing and interactive projects with Circuit Stickers, adding electronics to any sticker-friendly surface including paper, fabric and plastic.

“Building circuits with them is fun and easy – just stick them onto a surface like you would with a normal sticker, and build up a circuit by sticking several stickers together,” the Circuit Sticker crew wrote in a recent Crowd Supply post.

“They’re an approachable way to craft with electronics, whether you’re just starting out with circuits or creating complex interactive artworks.”

Currently, there are four primary categories of Circuit Stickers:

  • LED Stickers – Simple LED lights available in white, red, yellow and blue.
  • Effects Stickers – Generate an effect to control your LEDs with blink, fade, twinkle and heartbeat.
  • Sensors Stickers – Includes a light sensor, a microphone sensor for detecting sound and a trigger circuit.
  • Touch sensor/Microcontroller Sticker – Initially configured to to work as a touch sensor, although advanced users can program and customize the on-board ATTiny85 (Atmel) microcontroller (MCU).

“We’ve designed Circuit Stickers to be as easy-to-use as possible, so you don’t need a background in electronics to get started–our interactive sketchbook will teach you the basics,” the Circuit Stickers crew added. “Technically advanced users can program Circuit Stickers and even integrate traditional electronics to create more complex works. Circuit Stickers are also made the work well with a wide range of materials, so you can use whatever art and craft techniques that are most fun and familiar to you.”

Interested in learning more? You can check out the official Circuit Stickers project page on Crowd Supply here.

3D printing to take center stage at CES 2014

Bre Pettis, CEO and co-founder of the Atmel-powered MakerBot, will be delivering a keynote address at the 2014 International CES Leaders in Technology (LIT) Dinner on January 8 at Wynn Hotel in Las Vegas. The invitation-only event gathers and honors the top technologists, entrepreneurs and policymakers instrumental in furthering technology innovation.

The Atmel-powered MakerBot will also be be taking center stage in the 3D printing TechZone at CES 2014. New to the show floor, the 3D TZ was established to showcase the latest advancements in 3D printing technology from top companies in the category. Indeed, following its initial launch, the 3D Printing TechZone sold out more than 3,000 net square feet of exhibit space and has since expanded to 6,900 square feet to meet exhibitor demand.

Pettis has led MakerBot as CEO since its inception in 2009. Prior to co-founding MakerBot, he co-founded the Brooklyn hacker collective NYC Resistor, where Atmel-powered Makerbot technology was first created, tested and proven. Pettis was also instrumental in building the first prototypes of MakerBot’s 3D printers – and is known worldwide as a leading evangelist for personal manufacturing.

In other MakerBot news, the company recently announced a new educational mission to put an Atmel-powered MakerBot Desktop 3D Printer in every American school. As we’ve previously discussed on Bits & Pieces, the first MakerBot Academy initiative includes 3D printing bundles for classrooms, an awesome Thingiverse Challenge along with generous support from both individuals and organizations.

“[You can help] get the word out. Tell the teachers you know to register at DonorsChoose.org. Support a school [and] contribute to the effort by choosing a teacher; help get them set for the Next Industrial Revolution,” MakerBot’s Ben Millstein, wrote in an official blog post detailing the initiative. “[You can also] participate in the Thingiverse Challenge, develop models that teachers can use to improve science, technology, engineering and mathematics (STEM) education.”

Unsurprisingly, the first MakerBot Academy initiative is off to an excellent start, with a number of teachers jumping into action to promote the project.

“They’re rapidly registering their requests on DonorsChoose.org and are making great progress on crowdfunding MakerBot Academy Bundles for their classrooms,” said Millstein. “[Plus], Bre Pettis has personally pledged to put an [Atmel-powered] MakerBot Replicator 2 Desktop 3D Printer in public high schools in Brooklyn, NY, home of MakerBot HQ where we manufacture all our desktop 3D printers and scanners.”

Interested in learning more about putting an Atmel-powered MakerBot in every American school? You can check out the official MakerBot Academy page here.

Video: Building a POV spinner display

A Maker by the (Reddit) name of Martin2550 has designed a sweet spinning disc style POV display powered by an Atmel-based Arduino.

As the HackADay crew notes, the DIY project is a great example of a Maker cheerfully modding whatever material and components happen to be readily available.

“Martin2250 is using an IR LED and photodiode to determine the rotational speed of the disc. He [initially] tried using the Arduino micros() function to delay between the photodiode pulse and turning on his LEDs,” explained HackADay’s Adam Fabio. “[However], he’s since switched over to using the AVR’s native timers.”

The disc is in the above-mentioned build is actually a CD, with Martin2250 diligently sanding away the label, masking out his digits and painting with a black marker. Meanwhile, cardboard, hot glue and visible LEDs were used to create four light boxes for the digits.

“The disc can display any four digits at once – perfect for a POV clock. We [also] love the use of on-hand materials in this hack – bits of hard and balsa wood, liberal use of hot glue, and of course cardboard,” added Fabio.

Interested in learning more about the Atmel-Arduino powered POV display? You can check out Martin2550’s Reddit post here.

The Makers of Iron Man

A Maker by the name of Ryan Brooks – aka “the real Tony Stark” – has created a slick 3D-printed, nod-receptive Iron Man helmet.

According to Terry Chao of DVICE, an Atmel-powered Arduino Pro Mini (ATmega168) and an Adafruit accelerometer allows the helmet’s faceplate to open and close based on which way the wearer nods.

“By nodding backwards, the faceplate seamlessly opens and locks into place, while nodding with a forward motion will close it. Brooks is currently selling iterations of his servo mechanism on his website, starting at $150,” wrote Chao. “Because the helmet’s base is tapered towards the bottom by design, Brooks made it possible to keep the shape of the original helmet through reticulating back neck flaps that allow the wearer to comfortably put it on.”

Brooks also equipped the helmet with some “Jarvis” voice action to inform the user if it is booted up and ready, along with appropriate air lock and “whoosh” sound effects when the faceplate opens and closes. Meanwhile, light blockers are tasked with protecting the wearer’s eyes from the bright LEDs in the mask.

Of course, this isn’t the first Iron Man project Bits & Pieces has covered. Back in September, we reported how a Maker by the name of Thomas Lemieux turned numerous heads when he showcased his rather impressive Iron Man suit at the 2013 World Maker Faire in NYC.

“Everything is Arduino powered. There are four Arduino UNOs (ATmega328) in the suit; one for each bionic replusor, one for the sound board, and one for the arc reactor. All of the components are powered by ten 2600 mAh batteries that had to be ordered from Hong Kong,” Lemieux told Electronic Design. “The sound components for each repulsor and the sound board are wave shields from Adafruit. The SD cards with all of the sound files are located there.”

According to Lemieux, the project actually began with the arc reactor.

“I wanted one to sit on my desk at home and thought it would be cool to build one myself. So I walked the aisles at Home Depot and found any part that would seem to work,” he explained.

“The fins are cut from a solid sheet of metal and I used copper coils to bend around them. I used a sink tap as the center piece. And the rest is washers, rubber tubing and erector set pieces all J-B welded together. I got all of the electronics and LEDs from Radio Shack.”

Lemieux also told Electronic Design that the biggest challenge in designing the suit was fitting all the electronics into such a constrained space.

“It was very much trial and error… I started building on May 2nd, spending about four hours a day plus many all-nighters.”

Lemieux says his next suit will be more streamlined and easier to assemble.

“I also want to make Ultron. I have some great ideas on lighting his face up,” he added.