When you have to purchase a wearable device, let’s say a smartwatch or fitness tracker, you have to make trade offs between user interface and battery life. For example, a fitness tracker such as Xiaomi Mi Band 2 will last about 2 weeks per charge with a limited display, while Android smartwatches with a much better interface need to be recharged every 1 or 2 days. Think Silicon aims to improve battery life of the devices with nicer user interfaces thanks to their ultra-low power NEMA 2D, 3D, and GP GPU that can be integrated into SoCs with ARM Cortex-M and Cortex-A cores. The company has three family of GPUs: NEMA|p pico 2D GPU with one core 4bpp framebuffer, 6bpp texture with/out alpha Fill Rate – 1pixel/cycle Silicon Area – 0.07 mm2 with 28nm process Power Consumption – leakage power GPU consumption of 0.06mW; with compression (TSFSc): 0.03 mW NEMA|t […]
Smartwatch for the Blind – Dot Watch Supports Braille Language, Sync Data over Bluetooth
A South Korean company has created Dot smartwatch specifically designed for the blinds and visually impaired, as it supports Braille language through 24 dots that move up or down depending on the data to show. Like other smartwatches, it will also pair with a smartphone, and received notifications over Bluetooth to Android and iOS smartphones. Dot watch specifications: Wireless MCU – 32-bit ARM Cortex M4F + Cortex M0 microcontroller “Display” – 4 Dot Cells (24 Dots) made of 6000 series silver aluminum Connectivity – Bluetooth LE 4.2 Misc – 24 touch sensors, shaft horizontal vibration motor, a crown, two buttons Battery – 400mAh li-polymer battery good for a typical 7 days on a charge Dimensions – Watch: 43mm x 12.5mm; Leather band – S size: 22x220mm; M size: 22x250mm; L size: 22x290mm Weight – 27g This is all made possible through the company’s dot rotor technology that allows to move […]
Getting Started with ESP32-Bit Module and ESP32-T Development Board using Arduino core for ESP32
Espressif ESP32 may have launched last year, but prices have only dropped to attractive levels very recently, and Espressif has recently released released ESP-IDF 2.0 SDK with various improvements, so the platform has become much more interesting than just a few weeks ago. ICStation also sent me ESP32-T development board with ESP32-bit module, so I’ll first see what I got, before trying out Arduino for ESP32 on the board. ESP32-T development board with ESP-bit Module – Unboxing & Soldering One thing I missed when I asked for the board is that it was not soldered, and it comes in kit with ESP32-bit module in one package, and ESP32-T breakout board with headers in another package. The 21.5x15mm module is based on ESP32-DOWNQ6 processor with 32 Mbit (4MB) of flash, a chip antenna, and a u.FL connector. The module is apparently made by eBox, and also used in Widora board with […]
AIY Projects Voice Kit Transforms Raspberry Pi 3 Into Google Home, Comes Free with Raspberry Pi Magazine
We’ve just reported about the preview release of Google Assistant SDK that works on the Raspberry Pi 3, and other boards with a microphone, speakers, and access to Internet. The Raspberry Pi foundation and Google have now made it even easier, as they launched AIY Projects Voice Kit with a Google Voice HAT, a speaker, a stereo microphone Voice HAT board, a button, a few cables, and a cardboard case. You’ll just need to add your own Raspberry Pi 3, follow the instructions to assemble kits, load and setup the software. Once this is all done, you’ll be able to press the top button, asking anything you want to Google Voice, including the weather. Price? Sort of free, as it comes with MagPi 57 magazine, where you’ll also find detailed instructions for the kit. Google AIY Projects got its name from a mix between (DIY) and artificial intelligence (AI), and […]
Creality CR-10 3D Printer Review – Part 2: Tips & Tricks, Octoprint, and Craftware
Hey Karl again with part 2 of my 3D printing experience with the CR-10, after the first part describing CR-10 3D printer setup and first prints. The intent is to share my experiences with the CR-10 with the perspective from a noob. I have to say if you are hard heading like I am, and do a lot of research but don’t fully listen to what you are reading, you are going to waste a lot of filament and time. I spent a couple hours a day for weeks with trial and error and watching the printer and how it works adjusting about a billion settings and testing. I am hoping this will help any current or future CR-10 owner speed up the learning curve. Measuring Filament Diameter The single biggest thing to improve my print quality I found was measuring the filament. I read about this several times but […]
SiFive Launches 32-bit E31 Coreplex & 64-bit E51 Coreplex RISC-V Processors, Reveals Pricing
SiFive unveiled their Freedom U500 and E500 open source RISC-V SoCs last year, and a little layer launched HiFive1 Arduino compatible development board based on SiFive Freedom E310 processor. The company has now launched their non-open source Coreplex IP also based on RISC-V ISA with the 32-bit E31 Coreplex and 64-bit E51 Coreplex, and explained details about pricing. Some of the key features of the processors are listed below: E31 Coreplex 32-bit RV32IMAC core @ 900 to 1.5 GHz (with 28nm process) Advanced Memory Subsystem – 16KB, 2-way Instruction Cache, Instruction Tightly Integrated Memory (ITIM) option, up to 64KB Data Tightly Integrated Memory (DTIM) support Up to 16 local interrupts with vectored addresses Performance – 1.61 DMIPS/MHz ; 2.73 Coremark/MHz Power Consumption 28nm HPC process – Core only: 150 DMIPS/mW ; Coreplex: 41 DMIPS/mW 55nm LP process – Core only: 95 DMIPS/mW; Coreplex: 16 DMIPS/mW Applications: Edge Computing, Smart IoT […]
SinoVoIP Releases $35 Banana Pi BPI-M2+ Board with Allwinner H2+ Processor
Banana Pi BPI M2+ board was first released with Allwinner H3 processor, but the same PCB can also be used with Allwinner H2+ and H5 processors since the processors are pin-to-pin compatible, and SinoVoIP intends to release three version of the board, and just launched BPI M2+ (aka BPI H2+) with Allwinner H2+ processor for $34.50 + shipping, $1.5 cheaper than the H3 version also listed on Aliexpress. If you shop around, and don’t order on the official SinoVoIP store, you may find cheaper price for the boards. As expected, the specifications have not changed apart from the processor: SoC – Allwinner H2+ quad core Cortex A7 @ 1.2 GHz with an ARM Mali-400MP2 GPU up to 600 MHz System Memory – 1GB DDR3 Storage – 8GB eMMC flash, micro SD card slot up to 64GB, Video & Audio Output – HDMI with CEC support Connectivity – Gigabit Ethernet, 802.11 […]
$97 MXQ HF10 Android Bluetooth Speaker & TV Box Works with Amazon Alexa
Last fall, I wrote about Eny Technology HF10, a 2-in-1 Android 6.0 TV box & Bluetooth speaker powered by Amlogic S905X processor, but at the time it was still under development, and we did not know all the features. The device has now been launched under the MXQ brand with support for Amazon Alexa voice service, and is up for pre-order for $96.55 on GearBest. MXQ HF10 specifications: SoC – Amlogic S905X quad core ARM Cortex-A53 @ up to 1.5 GHz with Mali-450MP GPU System Memory – 1GB DDR3 Storage – 8GB eMMC flash + micro SD slot up to 128 GB Video Output – HDMI 2.0a up to 4K @ 60 Hz Audio HDMI output 2.5″ 10W mono bass speaker with class-D amplifier Connectivity – 10/100M Ethernet, dual band 802.11 b/g/n/ac Wi-Fi, and Bluetooth 4.0 USB – 1x USB 2.0 host port Misc – Power & Play/Pause combo button, […]