CNX Software - Embedded Systems News

November 7, 2017October 13, 2023 by Jean-Luc Aufranc (CNXSoft) - 12 Comments

MINIX based Intel Management Engine Firmware & UEFI are Closed Source & Insecure, NERF to the Rescue!

You may have heard a few things about Intel Management Engine in recent months, especially as security issues have been found, the firmware is not easily upgradeable, and the EFF deemed it a security hazard asking Intel for ways to disable it. In recent days, I’ve seen several media reports about the Management Engine being based on an Intel Quark x86-based 32-bit CPU running MINIX open-source operating system. Keep in mind, there’s nothing nefarious about MINIX, it’s just that Intel keeps its own developments on top closed. One of sources for the information is a blog post explaining how to disable Intel ME 11, but ZDNET also points to one of the talks at the Embedded Linux Conference Europe 2017 entitled “Replace Your Exploit-Ridden Firmware with Linux” by Ronald Minnich, Google which explains the problem, and proposes a solution to (almost) disable Intel’s ME, and replace UEFI by a small […]

November 7, 2017November 7, 2017 by Jean-Luc Aufranc (CNXSoft) - No Comments

Arduino Create Adds Support for Linux Development Boards (based on Intel processors for now)

Most people are used to program Arduino compatible boards with the Arduino IDE that they’ve installed in their Windows/Linux/Mac OS computer, and manage everything locally. But Arduino introduced Arduino Create last year, which includes Arduino Web Editor allowing you to perform the same tasks in your web browser, and save your files in the cloud. The company has now added Linux support to Arduino Create so that users can now program their Linux devices as if they were regular Arduino boards, and easily deploy IoT applications with integrated cloud services. The initial release has been sponsored by Intel, and currently supports X86/X86_64 boards, but other hardware architectures will be supported in the coming month. In the meantime, AAEON UP2 board is the best platform to get started, as a complete getting started guide is available for the platform. But other mini PCs such as Intel NUC, Dell Wyse, Gigabyte GB-BXT are […]

November 7, 2017 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

$100 CA98 TV Stick is Powered by Intel Celeron N3350 Processor

We’ve already seen Apollo Lake TV sticks such as MeegoPad T11, ECDREAM A9, or BBen MN10. Linuxium reviewed ECDREAM A9 model on this blog, and found out that Windows 10 (pre-installed), and Ubuntu 17.04 operating systems ran reasonably well with two main downsides: the relatively slow eMMC flash, and the noisy fan. Another issue is the size, as with 58mm width, it looks more an hybrid between a mini PC and a TV stick, than an actual TV stick. Another Apollo Lake TV/PC stick is now available with CA98 (aka CSA98) found on Aliexpress for $100, as well as on Shenzhen Indo Technology’s Alibaba page. CA98 specifications: SoC – Intel Celeron N3350 dual core processor @ 1.1 GHz / 2.4 GHz, 12 EU Intel HD graphics 500 @ 200 MHz / 650 MHz; 6W TDP System Memory – 2GB LPDDR3 Storage – 32GB eMMC flash (optional 16, 64 or 128GB) […]

November 6, 2017November 6, 2017 by Jean-Luc Aufranc (CNXSoft) - 4 Comments

Compulab Fitlet2 Fanless Apollo Lake Mini PC is Designed for Industrial IoT Gateways

Compulab Fitlet mini PCs were introduced in January 2015 with AMD Mullins processors, namely AMD A4 Micro-6400T or E1 Micro-6200T both of which including Radeon graphics, and supporting up to 8GB RAM, mSATA, up to two HDMI port, up to four Gigabit Ethernet ports. The company has now launched Fitlet2 mini PCs, replacing AMD processors by Intel Apollo Lake SoCs, supporting up to 16 GB RAM, and designed for “demanding IoT applications” with support for wide temperature range, and long term support and warranty. Fitlet2 specifications: SoC (from a choice among three) Intel Atom x7-E3950 quad core processor @ 1.6 / 2.0 GHz with 18 EU HD graphics; 12W TDP Intel Atom x5-E3930 dual core processor @ 1.3 / 1.8 GHz with 12 EU HD graphics; 6.5W TDP Intel Celeron J3455 quad core processor @ 1.5 / 2.2 GHz with 12 EU HD graphics; 10W TDP System Memory – 1x […]

November 6, 2017November 6, 2017 by Jean-Luc Aufranc (CNXSoft) - 5 Comments

EasyVolts USB Dongle Outputs 0-24V DC, Exposes UART, GPIO/PWM, RS-485 Signals

A while ago, I wrote about USBminiPower, a USB power supply with 3.3V, 5V, and one variable DC output up to 14.3V adjustable with a rocker switch, and equipped for a 4-digit LED display showing current intensity and voltage. But recently, I was made aware of another USB power supply – EasyVolts USB dongle – that supports 0 to 24V DC, and also exposes either UART pins, or RS-485 signal, plus two GPIO/PWM pins. EasyVolts specifications: USB – 1x USB port for power, communication Power Supply function: Input voltage: 5V from USB port Output voltage: 0-24V Max output current: 1A Max output power: ~2.4W (e.g. 24V/0.1A; 3.3V/0.55A) Voltage resolution: <50mV Current resolution: <2mA I/O expansion 4- pin to be used as UART (Tx/Rx) or RS-485 + 2x GPIO/PWM UART – speed: 300-230400 bit/sec; resistance of Tx/Rx pins: 300 Ohm PWM – Base frequency: 240kHz.; frequency division configuration: 1-65535; duty cycle […]

November 6, 2017 by Jean-Luc Aufranc (CNXSoft) - 9 Comments

RetrOrangePi 4.0 Released

RetrOrangePi is a retro gaming & media center firmware based on Armbian Debian image and working on Allwinner H3/H2+ based Orange Pi boards, Banana Pi M2+, and NanoPi M1, as well as Beelink X2 TV Box. Right at the end of last year, I reviewed RetrOrangePi 3.0 on Orange Pi One board to which I connected Mars G01 gamepad, and I could play some games like Wolfenstein 3D and Quake, and watch videos on OpenELEC/Kodi 16. The firmware also comes with various emulators, but you’d have to load the ROMs yourself due to intellectual property / license issues. The developers have now released RetrOrangePi 4.0. RetrOrangePi 4.0 changelog: Latest Armbian v5.32 (Debian Jessie kernel 3.4.113) RetroPie-Setup v4.3.3 (unofficial fork, upgradeable) New RetrOrangePi repository for easy updates and fixes EmulationStation v2.6.5 with video and game collection support, Desktop/OpenELEC shorcuts from main menu New ROPi “Attract-Mode”-like theme (based on Cosmos theme) Retroarch […]

November 5, 2017November 7, 2017 by Jean-Luc Aufranc (CNXSoft) - 330 Comments

Giveaway Week – Khadas Vim Pro Development Board

For the final day of this giveaway week, I’ll send Khadas Vim Pro development board to a new home. The board is powered by an Amlogic S905X processor coupled with 2GB RAM and 16GB storage, features 10/100M Ethernet and 802.11ac WiFi, and support 4K video playback and output via its HDMI 2.0a port. The board supports various operating systems such as Android, LibreELEC, dual boot Android/Ubuntu, etc.. and I wrote a Ubuntu review / getting started guide for the board in February. At the time, the image was still “raw” with many steps to perform by the users, and part of the documentation needing to be worked on. But the company (Szwesion) and members of the community are usually active in resolving user issues on the forums. I’ll give away the kit I’ve received with the board in an acrylic case, a USB to USB type C cable for power, […]

November 4, 2017November 6, 2017 by Jean-Luc Aufranc (CNXSoft) - 146 Comments

Giveaway Week – Nextion Enhanced 7″ Capacitive Display

My Nextion Enhanced NX8048K070 display will soon find a new home. The 7″ display comes with a capacitive touchscreen, an enclosure, and can work in standalone mode thanks to a built-in processor and a 8-pin FPC connector for I/Os, or connected to a micro-controller through a UART interface. I did a mini review of the display, mostly showing a teardown, and how to use Nextion Display Editor Windows-only tool to design your own user interface. The GPIOs are not really convenient to use with the required flat cable, and the company did not send me their $5 IO board, which would have made things easier. Learning curve may be a little sharper than needed as I’ve not found the Windows software to be very user-friendly, and documentation could be improved too. I’ll give the display with enclosure, micro USB power board, and UART cable as shown on the first photo. […]