The Linux kernel now has about 20 millions line of code, Arm has hundreds of licensees making thousands of processors and micro-controllers, which end up in maybe hundreds of thousands of different designs, many of which are not using Linux, but for those that do, Linux must be tested to make sure it works. The same stands true for any large software used on multiple hardware platforms. Manual testing is one way to do it, but it’s time consuming and expensive, so there are software and hardware continuous integration solutions to automate testing such as Linaro LAVA (Linaro Automated Validation Architecture), KernelCI automated Linux kernel testing, and Automotive Grade Linux CIAT that automatically test incoming patch series. Both CIAT and KernelCI focus on Linux, and rely on LAVA, with KernelCI leveraging hardware contributed by the community, and proven to be effective as since it’s been implemented, failed build configs dropped […]
Voladd Cloud-Connected Linux 3D Printer is Powered by BeagleBone Black Board (Crowdfunding)
So far, all of the 3D printers that have been reviewed on this blog require you to design or download a 3D object on your computer, and print it from an SD card. But thanks to OctoPrint software and cheap ARM Linux developments boards, it has become possible to add a Linux computer with webcam to remotely start and control the 3D printer for a few dozens dollars. Karl has even released an OctoPrint image for Orange Pi Lite board. Voladd 3D printer already embeds a Linux board, namely the BeagleBone Black running Debian, which allows the 3D printer to be easy to use since no software installation is required. You can start printing by selecting an object in a web browser or an app in your smartphone, and they’ve also taken steps to eliminate/reduce maintenance tasks, such as the inclusion of a filament cartridge. Voladd 3D printer specifications: Internal […]
Hologram Unveils Nova 3G USB Dongle and Python SDK; 200 Raspberry Pi Zero W Kits Given Away to Developers
This summer I discovered Hologram global cellular IoT SIM card, and since they provided free developer samples with 2MB of monthly data includes, I decided to get one to try it out. I received it a few weeks later, and to my surprise it worked, despite my country of residence having some strict requirements with regards to SIM card registration. The SIM card uses roaming, but with a low fixed worldwide pricing, and does not come with a phone number by default, so maybe that’s why I did not have to register. The company is now back with Nova, an open source hardware cellular modem certified by OSHWA (ID #US000077). It’s basically 2G/3G USB dongle that’s controlled by Hologram Python SDK, specifically suited to Debian systems like Raspberry Pi 3 or BeagleBone Black. Hackster.io is also involved in the launch with a worldwide contest offering 200 free kits comprised of […]
Olimex Introduces Universal Systems-on-Module with 204-pin SO-DIMM Edge Connector
Olimex has designed several system-on-modules (SoM) over the years for on various processors such as Rockchip RK3188, TI AM3352, or Allwinner A20, and each time they focus on exposing as many pins as possible from the SoC. That’s nice for some application, but it also means SoM with different processor are not compatible, and you can’t simply design a single baseboard for all those SoMs. Olimex then realized many customers wanted an upgrade path for the SoM without having to redesigned the baseboard, and most were using the same common interfaces, so a family of compatible SoMs was needed. While there are already many system-on-module standards available, the company decided to roll their own SoM form factor based on the 204-pin SO-DIMM edge connector. The first SoM based on the standard will be A20-SOM204 powered by the popular Allwinner A20 processor. All SoM following this standard will expose the following […]
Linaro Connect SF 2017 Welcome Keynote – New Members, Achievements, the Future of Open Source, and More…
Linaro Connect San Francisco 2017 is now taking place until September 29, and it all started yesterday with the Welcome Keynote by George Grey, Linaro CEO discussing the various achievements since the last Linaro Connect in Budapest, and providing an insight to the future work to be done by the organization. The video is available on YouTube (embedded below), and since I watched it, I’ll provide a summary of what was discussed: Welcoming New Members – Kylin (China developed FreeBSD operating systems) joined LEG (Enterprise Group), NXP added LHG (Home Group) membership, and Xilinx joined LITE (IoT and Embedded). Achievements OPTEE open portable trusted environment execution more commonly integrated into products. Details at optee.org. LEG 17.08 ERP release based on Linux 4.12, Debian 8.9 with UEFI, ACPI, DPDK, Bigtop, Hadoop, etc… LITE group has been involved in Zephyr 1.9 release, notably contributing to LwM2M stack More projects to be found […]
$25 PocketBeagle is a mini BeagleBone Board based on Octavo OSD3358-SM SiP
Earlier this year, Qwerty Embedded designed PocketBone board, an Eagle & KiCad open source hardware board software compatible with BeagleBone, but much smaller and based on Octavo OSD3358 system-in-package. This was never an official BeagleBoard.org board, and AFAIK it was not made broadly available. But the BeagleBoard foundation has now introduced PocketBeagle with a similar form factor, but based instead on the latest Octavo OSD3358-SM SiP that embeds TI Sitara AM3358, 512MB RAM, a PMIC, and various passive components into a 21×21 package, and exposing more I/Os thanks to 72 through holes. PocketBeagle board specifications: SiP (System-in-Package) – Octavo Systems OSD3358-SM with TI Sitara AM3358 ARM Cortex-A8 processor @ up to 1 GHz, PowerVR SGX530 GPU, 2x PRU, ARM Cortex-M3 for power and security management functions 512MB DDR3 800 MHz 4kB I2C EEPROM TPS65217 PMIC + LDO with integrated 1-cell LiPo battery support Storage – micro SD slot USB – […]
Aspencore 2017 Embedded Markets Study – Programming Languages, Operating Systems, MCU Vendors, and More
Aspencore media group asked readers of their EE Times and Embedded.com websites to fill out an online survey about their embedded system projects. They got 1,234 respondents mostly from North America (56.3%), followed by Europe (25.2%), and Asia (10.6%). This resulted in a 102-page market study which you can download here. I’ve extracted a few slides to have a look at some of the trends. C language is still the most used language in embedded systems, but other languages like C++, Python and even assembly language are gaining traction. Operating system is more spread with Linux being the most used via Embedded Linux distributions, Debian, and Ubuntu. FreeRTOS comes in second place, while Android registers fourth with 13%. Git has finally supplanted Subversion in 2017, with all other version control software losing ground. Switching to some hardware slides, 44% used a development board to start their embedded design with ST […]
Gumstix Pi Conduit Gateway Board Leverages Raspberry Pi Compute Module, Off-the-Shelf LoRa and Cellular Modules
Gumstix has designed Pi Conduit Gateway baseboard for both the Raspberry Pi Compute Module and RisingRF RHF0M301 LoRa gateway module, in order to create a Linux based LoRa gateway that can optionally support LTE or other cellular connectivity via NimbeLink Skywire cellular modem. Conduit Pi LoRa Gateway board specifications: 200-pin SO-DIMM connector for Raspberry Pi Compute Module / Raspberry Pi 3 Compute Module (CM3 / CM3L) Headers for RisingRF RHF0M301 LoRa Module NimbeLink Skywire 2G/3G/4G cellular modem connector Low profile 10/100M Ethernet jack (implemented via USB 2.0) USB – 1x micro USB port for debugging via an FTDI USB to TTL chip Misc – User (GPIO5) and reset buttons Power Supply – 5V via power barrel The board was designed using Geppetto, which means you should be able to customize it to your needs by modifying it the original design in a web browser, and order your brand new custom […]