CNX Software - Embedded Systems News

September 26, 2015July 29, 2017 by Jean-Luc Aufranc (CNXSoft) - 40 Comments

How to Use Orange Pi Camera in Linux (with Motion)

Earlier this month, I wrote a Quick Start Guide for Orange Pi Allwinner H3 boards such as Orange Pi PC, and showed how to install and configure Debian on the boards. I’ve also received the $5.90 Orange Pi camera, which when combined an Orange Pi PC, costs around $27 including shipping. So today, I’ve attached the CSI camera to my Orange Pi 2 mini board, and used it with motion to transform for the board into an IP camera. First, you’ll need to insert the camera into CON1 connector with the camera facing the ceiling, and close the black clip to keep it in place. Now connect all cable and power on your board. First, I studied the steps described on that forum thread, and modified Allwinner configuration files, but after one or two hours, I found out some work at been done since May, and it was now much […]

September 25, 2015 by Jean-Luc Aufranc (CNXSoft) - No Comments

Android TV Box and OpenELEC Video Tutorials

WeTek has released several video tutorials explaining how to configure WeTek TV boxes such as WeTek Play or WeTek OpenELEC, as well as the upcoming WeTel Core. The tutorials includes instructions for both Android and OpenELEC available in 6 languages: English, French, Portuguese, Spanish, Italian, and German. Some tutorials are clearly specific to WeTek products, such as “How to Activate WeTek Play membership”, but many of the tutorials are more generic starting from simple configurations steps like configuring HDMI output resolution and framerate, or configuring the network, to more advanced tasks such as configuring a DVB-S2 tuner on TVHeadend in OpenELEC. I’ve embedded the latter video tutorial below for reference.

September 25, 2015September 25, 2015 by Jean-Luc Aufranc (CNXSoft) - 4 Comments

Mini Review of Semlamp SL-011 Audio Controlled Relay for Home Lighting

Last month, I wrote about Semlamp SL-012 a smartphone controlled light switch for 2 lamps that sells for about $11 on DX, and contrary to most others don’t use Bluetooth, nor Wifi, but instead a simple microphone. I decided to try it out by purchasing SL-011 model, controlling only one light, for $8.22 on DealExtreme. Semlamp SL-011 Unboxing and Teardown That’s the package with some instructions in Chinese. The device has black and red wires to connect to 220V on the right of the picture below, blue and brown wires to connect to the lamp, and a microphone attached via a white cable. It’s quite easy to take apart, as they are just two screws to remove, and you can easily pop-up the bottom part of the case to access the board. The top of the board features JQC-3FF 24V relay supporting up to 10A @ 277VAC, as well as […]

September 25, 2015 by Jean-Luc Aufranc (CNXSoft) - No Comments

Atmel Unveils the World’s Smallest Bluetooth 4.1 LE SoC, and BTLC1000 Xplained Pro Development Kit

Atmel has just announced it is now shipping SmartConnect BTLC1000 Bluetooth Smart (BLE 4.1) SoC in production quantities. The chip is remarkable thanks to its size, as the company managed to pack an ARM Cortex-M0 MCU, a transceiver, a modem, MAC, PA, TR Switch, and Power Management Unit (PMU) into a 2.26×2.14 mm package. Atmel SmartConnect BTLC1000 Bluetooth LE SoC key features and specifications: MCU – ARM Cortex M0 @ 26 MHz 128KB IRAM/DRAM, 128KB ROM Connectivity – Bluetotoh 4.1 Smart with L2CAP service layer protocols, Security Manager, Attribute protocol (ATT), Generic Attribute Profile (GATT) and the Generic Access Profile (GAP). Proximity, Thermometer, Heart Rate, Blood Pressure, and others profiles are also included in the protocol stack. I/Os – Up to 15, including 2x UART, 2x SPI, and 2x I2C. Hardware Crypto – AES-128, SHA-256 Operating Voltage – 1.8 – 4.3V Power Consumption – > 4mA in RX, and >3mA […]

September 24, 2015 by Jean-Luc Aufranc (CNXSoft) - 6 Comments

Linux Kernel Mainline Status of Mobile SoCs Presentation at Linaro Connect SF015

Linaro Connect San Francisco 2015 is taking place this week, and several 96Boards have been presented including LeMaker Hikey and Qualcomm DragonBoard 410c, both of which will finally be available by the end of the year. But there are also many technical presentation and discussions that are uploaded to LinaroOnAir Youtube account, and they’ve greatly improved video and audio quality compared to the past, with presentation slides also available on Slideshare. I’ve just watched one of the session entitled “Kernel Mainline Status of Mobile Chipsets” by Tim Bird, Sony Mobile. Also the talk focus on mobile SoC, it’s also relevant to other consumer electronics products, and some embedded systems. The presentation states the extend of the issues, shares comparisons between the vendor device tree and mainline, and explains how developers can participate, with the talk ending with a discussion within the group of attendees. Here’s a summary of some of […]

September 24, 2015September 24, 2015 by Jean-Luc Aufranc (CNXSoft) - No Comments

Pebble Time Round is Thinner, Features a Circular Display, But Lasts Only 2 Days on a Charge

Pebble introduced Pebble Time smartwatch with an always-on color e-Paper display, voice recognition, and 7 days of battery life early this year, and the company has now unveiled a thinner version with a circular display, that’s still always-on, but unfortunately only lasts 2 days on a charge like most of other smartwatches on the market. The Pebble Time Round shares the same “Timeline” user interface as the Pebble Time (Steel), and most of the hardware features: Display – Always-on, color e-paper display with LED backlight, 2.5D gorilla glass display Connectivity – Bluetooth Audio – Built-in microphone for voice reply Battery / Power Up to 2 days of battery life A 15 minutes charge gives you a day of use. Magnetic charging with cable working in any USB port Misc – 3x tactile buttons, vibrating motor for discreet alerts and alarms IP Rating – Splash resistant to IPX7 standard (Not waterproof […]

September 24, 2015September 25, 2015 by Jean-Luc Aufranc (CNXSoft) - 20 Comments

Brotli Compression Algorithm Combines High Compression Ratio, and Fast Decompression

After Zopfli, Google has now announced and released Brotli, a new compression algorithm to make the web faster, with a ratio compression similar to LZMA, but a much faster decompression, making it ideal for low power mobile devices. Contrary to Zopfli that is deflate compatible, Brotli is a complete new format, and combines “2nd order context modeling, re-use of entropy codes, larger memory window of past data and joint distribution codes” to achieve higher compression ratios. Google published some benchmark results comparing Brotli to other common algorithms. Since the company aims to make the web faster, the target is to decrease both downloading time (high compression ratio), and rendering time (fast decompression speed), and Brotli with a quality set to 11 is much better than competitor once both parameters are taken into account. As you’d expect the source code can also be pulled from Github. So I gave it a […]

September 23, 2015 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

RePhone Kit Create is a DIY Phone and Cellular Development Kit (Crowdfunding)

Seeed Studio has design a modular and open source phone it calls RePhone Kit Create. The kit allows you, or/and your kid(s), to assemble their own phone based on building blocks including a 2G or 3G core module, a touchscreen display module, an audio module, and pre-cut, seawable, washable, and easily drawable Kraft paper to make the case. The kit can also be used for IoT applications using cellular and Bluetooth connectivity, and extra Xadow modules GPS, NFC, motion sensors, camera and more.. Two cellular “core” module can be used: RePhone GSM + BLE module with the “world’s smallest System-on-Chip (SOC) for Wearables and Internet Of Things”, GSM, GPRS and Bluetooth 2.1 and 4.0 support. RePhone Core Module 3G with a “powerful microcontroller”,a standard Xadow interface (USB, GPIO, I2C, SPI, UART, EINT), support for speaker, two microphones and a headset, a Nano SIM, and support for HSPA/WCDMA:850/1900 and GPRS/EDGE:850/1900. Voltage: […]