Heart rate monitors (HRM) with chest straps are now being replaced by more comfortable strapless HRM, such as UWatch UX. These products are enabled by photoelectric sensors that sample light modulated by blood vessels, which expand and contract as blood pulses through them. One of such solutions is the recently introduced AMS AS7000 including a Cortex M0 core, and a DSP implementing algorithm to process raw photoplethysmography (PPG) readings from the sensors to convert them into digital HRM and HRV (Heart Rate Variability) values. Highlights of AS7000 Biosensor: MCU – ARM Cortex M0 with 4KB RAM, 32 KB EEPROM I/Os – 9 GPIOs, UART, SPI, I2C Analog electrical and optical Frontends Hardware sequencer Synchronous detector Integrated LEd driver with current control Optical filters Supply Voltage – 2.6 – 3.6V Temperature Range –30 to 70°C Package – 18 pins AS7000 can deliver greater accuracy when it is paired with an external […]
Zidoo X6 Pro Unboxing and Teardown
There are so many Rockchip RK3368 TV boxes on the market that it’s difficult for products to stand out. But Zidoo X6 Pro might be one of these products bringing a little more, as beside frequent firmware updates, Zidoo’s RK3368 TV box may be the first to officially run Kodi 15.x, while most others manufacturers have decided to stick with Kodi 14.2 in their latest firmware, and the company also released Kodi source code modifications for 7.1 audio pass-through, 3D MVC support, and hardware video decoding in compliance with Kodi’s GPL license. As usual, I’ll start by taking some pictures of the device and board, before writing a full review in the next few days. Zidoo X6 Pro Unboxing I got the following package via DHL, which somehow decided to take my picture as I received the parcel… The package includes some of the key features of the device include […]
Orbbec Persee Android & Ubuntu Mini PC Comes with a 3D Camera and SDK (Crowdfunding)
Orbbec is a startup working on 3D cameras which can be used for gesture recognition, 3D scanning, research purpose, and more. The company has now embedded their Astra 3D sensor into an ARM based mini PC running Android and/or Ubuntu which they call Orbbec Persee. Persee hardware specifications: SoC – Quad core Cortex A17 processor up to 1.8GHz with a Mali-T7xx GPU @ 600 MHz (They did not name it, but it must be Rockchip RK3288) System Memory – 2GB DDR3 Storage – 16GB eMMC flash, 1x micro SD card slot up to 64GB Video & Audio Output – HDMI 2.0 Audio Input – 2x microphones Camera – Built-in Astra Pro 3D camera RGB image size – 1280×720 @ 30 fps (UVC support) Depth image size – 640×480 @ 30 fps (16-bit) Range – 0.4 to 8 meters Depth accuracy – 0.5 centimeters at 2 meters Field of view – […]
Review of Voyo V2 Intel Atom Z3735F mini PC with Battery and SSD
Voyo V2 is another Intel Atom Z3735F mini PC pre-installed with Windows 10 Home, but it has some interesting features such as a 64GB SSD connected via a USB to SATA bridge on top of the regular 32GB eMMC, and a 5,000 mAh battery acting as a UPS. Since I have already received several of such platforms including MeLE PCG01, Wintel W8, and MeLE PCG03 and that there are usually few differences in regular benchmarks, I’ll focus on what varies between platforms: Windows activation status, storage and network performance, as well as power consumption. System Info and Windows Activation One of the shortcoming of this mini PC is that it only comes with a full sized USB port, and a micro USB port. So if you plan to use it as a PC with USB keyboard and mouse, you’ll need to use a USB hub, or at least a USB […]
Orange Pi PC Not Booting? You Are Not Alone…
Orange Pi PC development board launched at the end of August, and quickly went viral thanks to low $15 price tag. The company, Shenzhen Xunlong Software, is fairly small, with just over 10 employees, so when they started getting several thousands customers in a short time, they may have been overwhelmed, and this likely resulted in delays with regards to shipping, and acceptance into Orange Pi forums. Several people have now received their boards, and while many found it to work fine, I’ve been informed several people apparently got a non booting device. People on Youtube and Orange Pi Forums also complained about a booting issue until Ethernet lights up, or Ethernet not working, while other reports Linux is working, but not Android. Unless there was a bad batch during manufacturing, it’s hopefully mostly a firmware issue. The person who reports Ethernet not working, first used the images from Orange […]
ARNU Box Mach 10 Pure Linux Review
Most TV boxes on the market are running Android, but if all you’d want to do is watching online or local videos in Kodi, a Linux box may offer a more streamlined experience, and that’s exactly what ARNU Box Mach 10 Pure Linux is offering as an Amlogic S812 TV Box running Kodi 15 Linux. In my “Arnu Box Mach 10 specs, unboxing and teardown” post, we’ve already seen the box bascially uses the same PCB used in Eny M8S, but with some different memory and storage chips. But that’s the software that’s mostly interested in this box, and today, I’ll go through the first time setup and Cloudword, before testing video playback capabilities. Setting Up ARNU Box Mach 10 Pure Linux So I’ve just connected an HDMI cable, an Ethernet cable, and the power adapter to get started, and the very first time you’ll go through a detailed setup […]
VIA Artigo A820 Enterprise IoT Gateway Is Powered by Freescale i.MX 6DualLite Processor
VIa has just launched a new fanless IoT gateway targeting the enterprise market. Artigo A820 features Freescale i.MX 6DualLite Cortex A9 processor with dual Ethernet ports as well as DIO and serial ports, and optional wireless networking modules adding WiFi, 3G, and GPS connectivity. Artigo A820 specifications: SoC – Freescale i.MX 6DualLite dual core ARM Cortex-A9 @ 1.0 GHz with Vivante GC880 GPU System Memory – 1GB DDR3 SDRAM Storage – 4GB eMMC Flash + internal micro SD card Connectivity 1x Gigabit Ethernet (Micrel KSZ9031RNX with RGMII support) 1x 10/100M Ethernet (using ASIX AX88772 USB 2.0 to 10/100Mbps Fast Ethernet Controller), Optional VNT9271BU0DB IEEE 802.11 b/g/n USB Wi-Fi dongle Optional Ublox 3.75G HSPA/UMTS Mobile mini PCIe module with GPS and SIM card slot 2 Antenna holes for 3G or Wi-Fi Video Output – mini HDMI 1.4 USB – 3x USB 2.0 host ports Serial – 1x COM port for RS232/485; […]
R8 Android 5.1 TV Box Specs, Unboxing and Teardown
There are lots of Rockchip RK3368 TV boxes on the market, and Kingnovel sent me their latest R8 TV Box for review. I’ll start by listing the specs, then take a few pictures of the device, before taking it apart to checkout the board. R8 specifications Since Kingnovel is a manufacturer – or maybe just a reseller ? -, the specifications are flexible in order to match the requirements of their clients: SoC – Rockchip RK3368 octa core Cortex A53 processor @ 1.5 GHz (1.2GHz?) with PowerVR G6110 GPU System Memory – 1 GB DDR3 (2GB optional) Storage – 8GB eMMC flash (16 or 32GB optional) + micro SD card slot or SD card slot up to 32GB Video Output – HDMI 2.0 up to 4K @ 60Hz Audio Output – HDMI, optical S/PDIF Connectivity – Ethernet, Wi-Fi 802.11 b/g/n and Bluetooth 4.0 (RTL8723 module) USB – 3x USB 2.0 […]