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 […]

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 […]

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 […]

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: […]

MagicStick TV Sticks Powered by Intel Atom x5 or x7 Processors Feature up to 8GB RAM, HDMI 2.0, 802.11ac… (Crowdfunding)

Several Cherry Trail Atom x5 MegooPad TV sticks are on the way, but they mostly have similar specs to the previous generation Bay Trail sticks, except with a slightly faster processor, and in some models, USB 3.0 support. An Indian company is currently developing some Cherry Trail TV sticks with impressive specifications including processors such as Intel Atom x7-Z8700, up to 8GB RAM, up to 64GB storage, 802.11ac connections, HDMI 2.0, and USB 3.1 type-C connector. These products are called MagicSticks, and three models will soon be available. [Update 30/9/2015: The indiegogo campaign is up, but the Wave is not shown, and instead MagicStick Power has been renamed to Wave, changes are reflected in the table below] MagicStick One MagicStick Wave MagicStick Power Wave Processor Intel Atom x5-Z8300 processor up to 1.83 GHz, with 12 core Gen8 GPU Intel Atom x5-Z8500 processor up to 2.24 GHz, with 12 core Gen8 […]

Qualcomm Quick Charge 3.0 Promises to Charge Phones About 3x Faster Than Conventional Devices

Qualcomm has recently announced the latest version of its Quick Charge technology that allows to charge supported smartphones much faster than typical smartphones using a 5V charger. The company claims that Quick Charge 3.0 enabled smartphones can typicallly charge from zero to 80 percent in about 35 minutes compared to almost 90 minutes with conventional devices. Quick Charge 3.0 adds support for Intelligent Negotiation for Optimum Voltage (INOV), a new algorithm developed by Qualcomm Technologies that allows mobile devices to request optimal power transfer (3.6V to 20V in 200mV increments), while maximizing efficiency, which – together with other improvements – increases power efficient by 38% compared to Quick Charge 2.0, and allows charging the device twice as fast as possible with Quick Charge 1.0. That means the voltage and amperage will change during charging between 3.6V to 20V by 200mV increments, instead of 5V, 9V, 12V, and 20V for QC […]

Own-Mailbox is a Tiny, Secure, and Open Source Hardware Mail Server (Crowdfunding)

Email encryption has been around for a while, but virtually nobody uses it, because it’s quite complex to setup, and your recipients email clients, apps or browsers must also support encryption. Revolutek aims to simplify the setup and usage of encrypted email with their “Own-Mailbox” based on open source hardware and software technology. The hardware solution could have been based on the Raspberry Pi board in theory, but the popular board requires a closed source binary to boot, documentation about part of the hardware is lacking, and once the enclosure, and required accessories are included the price would have been higher. So instead they decided to design their own hardware based on an Allwinner processor: SoC – Allwinner A13 Cortex A8 processor @ 1GHz System Memory – 256 MB RAM Storage – (micro?) SD card slot with 16GB card included Connectivity – 10/100M Ethernet (Lan9500A controller) USB – USB host […]

Numato Opsis is an Open Source Hardware FPGA Board with 6 Video Inputs and Outputs (Crowdfunding)

Numato Lab is a Bangalore based company specializing in MCU and FPGA boards such as the low cost Mimas V2 Spartan 6 board, and their latest board is also based on a Spartan 6 FPGA, but a more powerful part with LX45T FPGA, and targets video applications with two HDMI inputs, two HDMI outputs, one DisplayPort output, and one DisplayPort input, among other interfaces. Instead of simply listing specifications of Numato Opsis, I’ll reproduce a table – drawn by Numato – showing Opsis features and specifications against some other FPGA video platforms. Opsis miniSpartan6+ Mixxeo Atlys Nexys Anvyl CVK 2.0 AVDB Make Numato ScarabHardware M‑Labs Digilent Digilent Digilent TED OmniTek License Open Open Open Closed Closed Closed Closed Closed Cost USD $349 USD $105 no stock USD $419 USD $499 USD $539 USD $2,995 USD $999 FPGA Fab Xilinx Xilinx Xilinx Xilinx Xilinx Xilinx Xilinx Altera Family Spartan‑6 Spartan‑6 Spartan‑6 Spartan‑6 Artix‑7 Spartan‑6 Spartan‑6 Cyclone V Part LX45T […]

UP 7000 x86 SBC