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AMS AS7000 Biosensor is Designed for Strapless Optical Heart Rate Monitors

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 […]

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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 […]

ArmSoM RK3588 AIModule7 NVIDIA Jetson Nano-compatible SOM
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ATT7039AU Micro-controller Features an Energy Meter Unit for Power Meters

About two years ago, I purchased Northwest T8 power meter, and it worked fine for about three months, but one day the top plastic broke as as unplugged it, rubber bands prolonged its life for a few more weeks, but eventually the display stopped working, and keep it in my drawer for long while, until today, when I decided to have a closer look at how it was done. The PCB is called CZ-7039-B2, and the top includes the display, 4 user buttons, as well as JTAG through holes (P2) and 2.54mm header (P1) with TDO, TMS, GND and 3.3V signals, as well as a pin called P1600, but I still haven’t found out what it might be for. I’ve also taken the board out completely, to find out everything is basically handled by a single 48-pin chip called ATT7039AU. After a Google search, I quickly found out the chip […]

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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 […]

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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 […]

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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 […]

Rockchip RK3568, RK3588 and Intel x86 SBCs and SoMs in 2025
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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 […]

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Voyo V2 mini PC Unboxing and Teardown

Voyo V2 would be yet another Intel Atom Z3735F based mini PC if it did not have a battery, and 96GB internal storage with 32GB eMMC flash, and a 64GB SSD. Most Atom mini PCs only comes with 32GB, and based on my experience, internal storage fills pretty quickly with Windows 10 or 8.1, especially if you intend to use the device as a desktop PC, and that even may be an issue with Linux distributions, albeit to a lesser extend. However, a lot of questions were asked about that “64GB SSD”, with even some readers suggesting it might be an internal SD card instead of SSD :). Today, we’re going to find out the truth as GearBest kindly sent me a sample for review. Voyo V2 Unboxing The mini PC package has a sticker in Chinese showing the brand (VOYO), model (MiniPC-Box_V2), and listing memory ans storage as “2GB+32GB […]

Boardcon CM3588 Rockchip RK3588 System-on-Module designed for AI and IoT applications