CNX Software - Embedded Systems News

September 28, 2015October 6, 2022 by Jean-Luc Aufranc (CNXSoft) - 13 Comments

$20 Xiaomi Mi Smart Remote Center Controls Infrared Home Appliances via Your Smartphone

Home automation used to be costly and complex to install, and some solutions are still that way, but several devices have dramatically brought the cost down and simplicity up including Orvibo Wiwo S20 WiFi smart socket, now selling for $16, Semlamp SL-011 – an $8 audio controlled relay -, or smart light bulbs like Yeelight. All three items have the advantage of being plug-and-plug, inexpensive, and controlled wirelessly using your iOS and Android smartphone. There are also been some WiFi, IR and RF gateways on the market, such as Broadlink RM2 / Pro, that can control devices such as smart socker, air conditioner, TV, and items using the 315/433MHz band. If you only want to control IR (and WiFi?) devices, and don’t need to control RF devices, Xiaomi Mi Smart Remote Center sells for half the price for Broadlink Pro for just $19.99 on GearBest. Xiaomi Mi Smart Remote complete […]

September 27, 2015March 28, 2019 by Jean-Luc Aufranc (CNXSoft) - 18 Comments

Using USB123 USBee AX Pro $5 USB Logic Analyzer with PulseView in Linux

I recently wrote about an ultra low cost USB logic analyzer called USB123 USBee AX Pro, which I bought for $9.58 on DX, but I was later informed it also goes for $5.44 on Aliexpress including free shipping to most countries, and a few dollars extra for shipping to some other countries. Nevertheless, I’ve now received it, and instead of testing it with a closed source (and cracked) Windows software, I installed and ran PulseView open source graphical interface for sigrok, which I previously tested on UNI-T UT61E digital multimeter. The package includes USBee AX PRO mini logic analyzer, 10 dupont wires for 8 channels (digital only) and 2 ground pins, as well as a mini USB to USB cable for connection to a computer. The instructions to use the logic analyzer can be found on Sigrok Wiki. My computer runs Ubuntu 14.04, but Sigrok and PulseView can also be […]

September 26, 2015November 3, 2015 by Jean-Luc Aufranc (CNXSoft) - 44 Comments

Status of Orange Pi Boards GPIO Support

Yesterday, one person asked me to make a video showing GPIO control on Orange Pi 2 mini on YouTube, and since I have just completed a post about Orange Pi camera, I thought it might be fun to check GPIO support too. This post focuses on Allwinner H3 boards, but the instructions and status should be very similar for Allwinner A20 and A31s versions. One of the first things you want before starting playing with GPIOs is the expansion header’s pinout chart, and I could not find any until I had the idea to check for schematics, which are available on Orange Pi resources page. I downloaded the schematics for Orange Pi 2, which should be the same as for Orange Pi 2 mini as the only difference is the lack of WiFi module. Orange Pi PC is a little different, and the schematics are nowhere to be found, but […]

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 […]