Tag Archives: ARM

Raspberry Pi 2 on sale now at $35

via Raspberry Pi

Let’s get the good stuff out of the way above the fold. Raspberry Pi 2 is now on sale for $35 (the same price as the existing Model B+), featuring:

  • A 900MHz quad-core ARM Cortex-A7 CPU (~6x performance)
  • 1GB LPDDR2 SDRAM (2x memory)
  • Complete compatibility with Raspberry Pi 1

Because it has an ARMv7 processor, it can run the full range of ARM GNU/Linux distributions, including Snappy Ubuntu Core, as well as Microsoft Windows 10.

Raspberry Pi 2 Model B

Raspberry Pi 2

BCM2836 and Raspberry Pi 2

Since we launched the original Raspberry Pi Model B, back in 2012, we’ve done an enormous amount of software work to get the best out of our Broadcom BCM2835 application processor and its 700MHz ARM11 CPU. We’ve spent a lot of money on optimising a wide variety of open-source libraries and applications, including WebKit, LibreOffice, Scratch, Pixman, XBMC/Kodi, libav and PyPy. At the same time, the Raspbian project, run by Peter Green and Mike Thompson, has provided us with an ARMv6-compatible rebuild of Debian with hardware floating point support, and Gordon, Dom and Jonathan have spent thousands of hours working on the firmware and board support to make Raspberry Pi the most stable single board computer in the world. It’s worth going back and trying out an old SD card image from 2012 to get an idea of how far we’ve come.

Nonetheless, there comes a point when there’s no substitute for more memory and CPU performance. Our challenge was to figure out how to get this without throwing away our investment in the platform or spoiling all those projects and tutorials which rely on the precise details of the Raspberry Pi hardware. Fortunately for us, Broadcom were willing to step up with a new SoC, BCM2836. This retains all the features of BCM2835, but replaces the single 700MHz ARM11 with a 900MHz quad-core ARM Cortex-A7 complex: everything else remains the same, so there is no painful transition or reduction in stability.

First silicon arrived last year, as we can see in this professionally shot video from bringup night:

Once we were confident that BCM2836 was performing as expected, James designed a series of prototypes, before we settled on the Raspberry Pi 2 Model B that launches today. This has an identical form-factor to the existing Raspberry Pi 1 Model B+, but manages to pack in both the new BCM2836 and a full 1GB of SDRAM from our friends at Micron. All of the connectors are in the same place and have the same functionality, and the board can still be run from a 5V micro-USB power adapter.

Raspberry Pi 2 is available to buy today from our partners element14 and RS Components. Remember you’ll need an updated NOOBS or Raspbian image including an ARMv7 kernel and modules from our downloads page. At launch, we are using the same ARMv6 Raspbian userland on both Raspberry Pi 1 and 2; over the next few months we will investigate whether we can obtain higher performance from regular ARMv7 Debian, or whether we can selectively replace a small number of libraries to get the best of both worlds. Now that we’re using an ARMv7 core, we can also run Ubuntu: a Snappy Ubuntu Core image is available now and a package for NOOBS will be available in the next couple of weeks.

Windows 10

For the last six months we’ve been working closely with Microsoft to bring the forthcoming Windows 10 to Raspberry Pi 2. Microsoft will have much more to share over the coming months. The Raspberry Pi 2-compatible version of Windows 10 will be available free of charge to makers.

Visit WindowsOnDevices.com today to join the Windows Developer Program for IoT and receive updates as they become available.


We’ll keep updating this list over the next couple of days, but here are a few to get you started.

Are you discontinuing the Raspberry Pi 1 Model B and B+?

No. We have a lot of industrial customers who will want to stick with Raspberry Pi 1 for the time being. We’ll keep building Raspberry Pi 1 Model B and Model B+ as long as there’s demand for it. Both these boards will continue to sell for $35.

What about Model A+?
Model A+ continues to be the $20 entry-level Raspberry Pi for the time being. Although the new board is called Raspberry Pi 2 Model B, we have no plans to introduce a Raspberry Pi 2 Model A before the end of 2015.

What about the Compute Module?
We expect to introduce a BCM2836-based Compute Module in the medium term, but for now we’re focused on getting Raspberry Pi 2 Model B out of the door.

Are you still using VideoCore?
Yes. VideoCore IV 3d is the only publicly documented 3d graphics core for ARM-based SoCs, and we want to make Raspberry Pi more open over time, not less.

Where does the “6x performance” figure come from?
The speedup varies between applications. We’ve seen single-threaded CPU benchmarks that speed up by as little as 1.5x, while Sunspider is around 4x faster, and NEON-enabled multicore video codecs can be over 20x faster. 6x is a typical figure for a multi-threaded CPU benchmark like SysBench.
Is this a full version of Windows 10?
Please refer to WindowsOnDevices.com.


A project like this requires a vast amount of focused work from a large team over an extended period. A partial list of those who made major direct contributions to the BCM2836 chip program and Raspberry Pi 2 follows: James Adams, Leo Azevedo, Jonathan Bell, Alex Bradbury, Dom Cobley, Steve Cook, Dave Collins, Phil Elwell, Gordon Hollingworth, Andrew Holme, Tammy Julyan, John Kelly, Walter Kho, Yung-Ching Lee, Gert van Loo, Ian Macaulay, Paul Manser, Simon Martin, Luca Di Mauro, Akshaye Sama, Andrew Scheller, Serge Schneider, Mark Scoones, Shawn Shadburn, Paul Sherry, Mike Stimson, Stuart Thompson, Roger Thornton, Madhu Thottupura, James Turner, Nidhi Varshneya, Andrew West. If you’re not on this list and think you should be, please let me know, and accept my apologies.

If you’re in front of a computer at 9am GMT and for a while after, you can watch us announcing the Raspberry Pi 2 live, and submit questions for us.

Introducing the F*Watch, a Fully Open Electronic Watch

via Hackaday » » hardware

As one of their colleagues was retiring, several CERN engineers got together after hours during 4 months to develop his gift: a fully open electronic watch. It is called the F*Watch and is packed with sensors: GPS, barometer, compass, accelerometer and light sensor. The microcontroller used is a 32-bit ARM Cortex-M3 SiLabs Giant Gecko which contains 128KB of RAM and 1MB of Flash. In the above picture you’ll notice a 1.28″ 128×128 pixels Sharp Memory LCD but the main board also contains a micro-USB connector for battery charging and connectivity, a micro-SD card slot, a buzzer and a vibration motor.

The watch is powered by a 500mA LiPo battery. All the tools that were used to build it are open source (FreeCAD, KiCad, GCC, openOCD, GDB) and our readers may make one by downloading all the source files located in their repository. After the break is embedded a video showing their adventure.

Filed under: 3d Printer hacks, ARM, hardware, wearable hacks

Introducing USB Armory, a Flash Drive Sized Computer

via Hackaday » » hardware

usb armory

[Andrea] tipped us about USB armory, a tiny embedded platform meant for security projects. It is based on the 800MHz ARM Cortex-A8 Freescale i.MX53 together with 512MB of DDR3 SRAM, includes a microSD card slot, a 5-pin breakout header with GPIOs/UART, a customizable LED and is powered through USB.

This particular processor supports a few advanced security features such as secure boot and ARM TrustZone. The secure boot feature allow users to fuse verification keys that ensure only trusted firmware can be executed on the board, while the ARM TrustZone enforces domain separation between a “secure” and a “normal” world down to a memory and peripheral level. This enables many projects such as electronic wallets, authentication tokens and password managers.

The complete design is open hardware and all its files may be downloaded from the official GitHub repository. The target price for the final design of the first revision is around €100.

Filed under: hardware

ARM-BMW, The Open Hardware Cortex-M0 Development Board

via Hackaday » » hardware

[Vsergeev] tipped us about a neat Cortex-M0 based development board with a total BoM cost under $15. It’s called the ARM Bare Metal Widget (ARM-BMW), focuses on battery power, non-volatile storage and debuggability.

The chosen micro-controller is the 50MHz NXP LPC1114DH28 which provides the user with 32kB of Flash, 8kB of SRAM, a 6 channel ADC and I2C/SPI/UART interfaces among others. The ARM-BMW contains a 2Mbyte SPI flash, an I2C I/O expander, several headers for expansion/debug purposes, 4 LEDs, 2 buttons, 2 DIP switches and finally a JTAG/SWD header for flashing and debugging. As you can see in the picture above you may either populate your own HC49UP crystal or use the internal 12MHz RC oscillator.

The platform can be powered using either a USB cable or a LiPo battery. As you can guess it also includes a much-needed battery charger (the MCP73831T) and a switched capacitor DC/DC converter to supply 3.3V. You may find all the files on the hardware or software repositories.

Filed under: ARM, hardware

Reverse Engineering a GPS Watch to Upload Custom Firmwares

via Hackaday » » hardware


Sometimes GPS watches are too good to be left with their stock firmware. [Renaud] opened his Kalenji 300 GPS watch, reverse engineered it in order to upload his own custom firmware.

The first step was to sniff the serial traffic between the PC and the microcontroller when upgrading firmware to understand the protocol and commands used. [Renaud] then opened the watch, figured out what the different test points and components were. He used his buspirate with OpenOCD to extract the existing STM32F103 firmware. The firmware helped him find the proper value to store in a dedicated register for the boot loader to start.

By looking at the disassembly code he also found the SPI LCD initialization sequence and discovered that it uses a controller similar to the ST7571. He finally compiled his own program which uses the u8glib graphics library. Follow us after the break for the demonstration video.

Filed under: ARM, handhelds hacks, hardware, wearable hacks

TI’s New Family Of WiFi Chips

via Hackaday» hardware

cccc Texas Instruments’ CC3000 WiFi chip is the darling of everyone producing the latest and greatest Internet of Thing, and it’s not much of a surprise: In quantity, these chips are only $10 a piece. That’s a lot less expensive than the WiFi options a year ago. Now, TI is coming out with a few new modules to their WiFi module family, including one that includes an ARM micro.

The CC3000 has found a home in booster packs, breakout boards for the Arduino, and Spark, who are actually some pretty cool dudes.Still, the CC3000 has a few shortcomings; 802.11n isn’t available, and it would be really cool if the CC3000 had a web server on it.

The newest chips add these features and a whole lot more. [Valkyrie] got his hands on a CC3100Boost board and was pleased to find all the files for the webserver can be completely replaced. Here’s your Internet of Things, people. The CC3200 is even better, with a built-in ARM Cortex M4 with ADCs, a ton of GPIOs, an SD card interface, and even a parallel port for a camera. If you’re looking to pull a hardware startup out of your hat, you might want to plan your Kickstarter around this chip.

It’s all very cool stuff, and although the bare chips aren’t available yet, you can get an eval module from TI, with an FCC certified module with the crystals and antenna coming later this year.

Filed under: hardware

An Open Source Cortex-M0 Halogen Reflow Oven Controller With LCD

via Hackaday» hardware

reflow oven controller

Homemade reflow ovens are a great inexpensive way to quickly solder multiple prototypes at once. [Andy] may just have built one of the best ones we’ve featured so far on Hackaday. For his project a £25 1300W 12litre halogen oven was chosen because of its low cost and fast heating time, the latter being required to follow typical reflow profile ramp-up stages.

To control the AC power [Andy] first bought a chinese Fotek Solid State Relay (SSR) on ebay, which was quickly replaced by an american one after reading concerning reports on the internet. He then made the same ‘mistake’ by buying the typical MAX6675 thermocouple-to-digital converter from the same website, as he spent much time understanding why the measurements were wrong when the IC was just defective. His final build is based around a 640×360 TFT LCD that he previously reverse engineered, the cortex-M0 STM32F051C8T7, a SPI flash, some power regulators and buttons. The firmware was written in C++ and we’ll let our readers visit [Andy]‘s page to see how well  his oven performs.

Filed under: ARM, cooking hacks, hardware

[Bunnie]‘s Laptop Gets A 900MHz Scope Addon

via Hackaday» hardware


Now that [Bunnie]‘s open hardware laptop – the Novena – is wrapping up its crowdfunding campaign, it only makes sense that development around the Novena project would move over to the more interesting aspects of a completely hackable laptop. The Novena has a huge FPGA on board, with 2 Gbit of very fast memory hanging off it. Also, every single signal pin of the FPGA is broken out on high-speed connectors, making for some very, very interesting possible add-on boards. [Bunnie] has always wanted a portable, high-end oscilloscope to carry with him, and with the new oscope module, he has something that blows out of the water every scope priced below a thousand dollars.

The oscilloscope module [Bunnie] is working on has either two 8-bit channels at 1 GSPS or one 8-bit channel at 2 GSPS with an analog bandwidth of up to 900MHz. The module also has 10 digital channels, so if you need a logic analyzer, there you go.

Being a fairly high-end scope, the hardest part of engineering this scope is the probes. The probes for fast, high-end scopes cost hundreds of dollars by themselves, so [Bunnie] looked for a clean-sheet redesign of the lowly oscope probe. To connect the probe to the module, [Bunnie] realized a SATA cable would be a great solution; they’re high bandwidth, support signals in the GHz range, and are rated for thousands of insertions. These active probes can be combined with a number of front ends for application specific probes – digital probes, ones for power signature analysis, and ones for capturing signals across small loops of wire.

The module itself isn’t quite ready for production yet, but by the time the Novena crowdfunding campaign starts shipping, [Bunnie] will probably be working on the next add-on module for his crazy awesome laptop.


Filed under: hardware

Sending Open-Source Satellites to Space

via Hackaday» hardware

An anonymous reader tipped us about two Argentinian satellites (satellite one, satellite two) that were sent in 2013 to space. What is interesting about them? They are both based on commercial off-the-shelf (COTS) components, and the team released the framework & flight computer software for their main platform (named cubesat, GitHub link). Gunter’s space page not only impresses us by showing the quantity of small/amateur satellites sent each month to space, but also lets us know that the hardware source files for CudeBug 1/2 are meant to be released. In the meantime we can only gather that they’re using a Texas Instruments TMS570 running FreeRTOS. Nevertheless, the two different web pages (in spanish and english) offer us a very interesting glimpse of what it takes to send an electronic project to space and how it later behaves.

You may also be interested in checking out ArduSat, a successful kickstarter campaign aimed at sending Arduino experiments in space.

Filed under: ARM, hardware

A High-Speed Logic Gate Board for the Easy-Phi Project

via Hackaday» hardware

A (long) while ago I presented you the Easy-phi project, which aims at building a simple, cheap but intelligent rack-based open hardware/software platform for hobbyists. With this project, you simply have a rack to which you add cards (like the one shown above) that perform the functions you want.

During these last months my team has been finishing the design and production of several different boards so I’ll start showing them off during these next weeks. Today I present you the High Speed Logic Gate Board, a quantum-physicist requested easy-phi module that can perform logic AND/OR functions at <2GHz speeds. This quite technical write-up is mainly about the constraints that high-speed signals pose for schematics design but is also about the techniques that are used for HS signals termination and monitoring. I hope, however, it’ll give our readers a nice overview of what the insides of a high-speed system may look like. All the files used for this board may be found on the official GitHub repository.

Filed under: ARM, hardware

HummingBoard, The Vastly More Powerful Raspi

via Hackaday» hardware



The Raspberry Pi has been around for a while now, and while many boards that hope to take the Pi’s place at the top of the single board ARM Linux food chain, not one has yet succeeded. Finally, there may be a true contender to the throne. It’s called the HummingBoard, and packs a surprising amount of power and connectivity into the same size and shape as the venerable Raspberry Pi.

The HummingBoard uses a Freescale i.MX6 quad core processor running at 1GHz with a Vivante GC2000 GPU. There’s 2GB of RAM, microSD card slot, mSATA connector, Gigabit Ethernet, a BCM4329 WiFi and Bluetooth module, a real-time clock, and IR receiver. There’s also all the usual Raspberry Pi flair, with a 26 pin GPIO connector, CSI camera connector, DSI LCD connector,  stereo out, as well as the usual HDMI and analog video.

The company behind the HummingBoard, SolidRun, hasn’t put a retail price on the board, nor have they set a launch date. You can, however, enter a contest to win a HummingBoard with the deadline this Friday. Winners will be announced in early May, so maybe the HummingBoard will be officially launched sometime around then.

It’s an amazing board with more than enough power to rival the extremely powerful BeagleBone Black, with the added bonus of being compatible with so many of those Raspberry Pi accessories we all love dearly.

Filed under: hardware, Raspberry Pi

[Bunnie] Launches the Novena Open Laptop

via Hack a Day» hardware

Novena Laptop

Today [Bunnie] is announcing the launch of the Novena Open Laptop. When we first heard he was developing an open source laptop as a hobby project, we hoped we’d see the day where we could have our own. Starting today, you can help crowdfund the project by pre-ordering a Novena.

The Novena is based on the i.MX6Q ARM processor from Freescale, coupled to a Xilinx Spartan 6 FPGA. Combined with the open nature of the project, this creates a lot of possibilities for using the laptop as a hacking tool. It has dual ethernet, for routing or sniffing purposes. USB OTG support lets the laptop act as a USB device, for USB fuzzing and spoofing. There’s even a high speed expansion bus to interface with whatever peripheral you’d like to design.

You can pre-order the Novena in four models. The $500 “just the board” release has no case, but includes all the hardware needed to get up and running. The $1,195 “All-in-One Desktop” model adds a case and screen, and hinges open to reveal the board for easy hacking. Next up is the $1,995 “Laptop” which includes a battery control board and a battery pack. Finally, there’s the $5000 “Heirloom Laptop” featuring a wood and aluminum case and a Thinkpad keyboard.

The hardware design files are already available, so you can drool over them. It will be interesting to see what people start doing with this powerful, open computer once it ships. After the break, check out the launch video.

Filed under: ARM, Crowd Funding, hardware

Designing a WakeUp Light

via Hack a Day» hardware

[Akhil] and his wife recently finished their WakeUp Light project. As the name suggests, this kind of morning alarm uses light to wake you up in the morning. The main constraints when starting this relationship-strengthening adventure were cost, ability to work with any table lamp, and having a simple but effective control interface, all while keeping all the design open. The created platform (put in the wooden box shown above) is built around a Stellaris Launchpad (ARM Cortex M4 based) and uses an AC dimmer circuit found in this instructable. For our readers interested in those, [Akhil] mentions two very interesting articles about their theory of operation here and here.

An Android application has been made to set up all the alarm parameters, which uses the phone’s Bluetooth to communicate with the (well-known) HC-05 Bluetooth transceiver connected to the Launchpad. For safety, the current design also includes an LM4876 based audio amplifier connected to the microcontroller’s PWM output. The next revision will integrate a Digital to Analog Converter and an SD-Card slot for better quality and music diversity. A presentation video is embedded after the break and you can find the official repository at GitHub.

Filed under: ARM, hardware, lifehacks

GEVCU – an Open Generalized Electric Vehicle Control Unit

via Hack a Day» hardware

At Hackaday we’re very happy to see the increasing number of open hardware devices that appear everyday on the internet, and we’re also quite thrilled about open-source electric cars. Pictured above is the GEVCU, an open source electric vehicle control unit (or ECU). It is in charge of processing different inputs (throttle position, brake pressure, vehicle sensors) then send the appropriate control commands to electric motor controllers (aka inverters) via CAN bus messages or digital / PWM signals.

The project started back in December 2012 and was originally based on an Arduino Due. Since then, the GEVCU went through several revisions and ultimately a complete custom board was produced, while still keeping the Cortex M3 ATSAM3X8E from the Due. As you may have guessed, the board also includes a Wifi transceiver so users may adjust the ECU parameters via a web based platform. All resources may be downloaded from the official GitHub.

Filed under: Arduino Hacks, ARM, hardware

[Bunnie]‘s Open Source Laptop Is Ready For Production

via Hack a Day» hardware


Just over a year ago, [Bunnie Huang] announced he was working on a very ambitious personal project: a completely open source laptop. Now, with help from his hardware hacker compatriot [xobs], this laptop named Novena is nearly complete.

Before setting out on this project, [Bunnie] had some must-have requirements for the design. Most importantly, all the components should be free of NDA encumbrances. This isn’t an easy task; an SoC vendor with documentation sitting around on their servers is rare as hen’s teeth, and Freescale was the only vendor that fit the bill. Secondly, the entire laptop should be entirely open source. [Bunnie] wasn’t able to find an open source GPU, so using hardware video decoding on his laptop requires a binary blob. Software decoding works just fine, though.

Furthermore, this laptop is designed for both security and hardware hacking. Two Ethernet ports (one 1Gbit and the second 100Mbit), a USB OTG port, and a Spartan 6 FPGA put this laptop in a class all by itself. The main board includes 8x analog inputs, 8x digital I/O ports, 8 PWM pins, and a Raspberry Pi-compatible header for some real hardware hackery.

As for the specs of the laptop, they’re respectable for a high-end tablet.  The CPU is a Freescale iMX6, a quad-core ARM Cortex-A9 running at 1.2 GHz. The RAM is upgradeable to 4GB, an internal SATA-II port will easily accommodate a huge SSD, the ability to use an LCD adapter board to run the 13-inch 2560×1700 LED panel [Bunnie] is using. The power system is intended to be modular, with batteries provided by run-of-the-mill RC Lipo packs. For complete specs, check out the wiki.

Despite the high price and relatively low performance (compared to i7 laptop) of [Bunnie]‘s laptop, there has been a lot of interest in spinning a few thousand boards and sending them off to be pick and placed. There’s going to be a crowd funding campaign for Novena sometime in late February or March based around an “all-in-one PC with a battery” form factor. There’s no exact figure on what the price of a Novena will be, but it goes without saying a lot will be sold regardless.

If you want the latest updates, the best place to go would be the official Novena twitter: @novenakosagi

Filed under: ARM, hardware