HeartyPatch is an Open Source Wireless ECG Patch Powered by ESP32 WiSoC (Crowdfunding)

Smart health gadgets will soon have a bigger part to play in our lives, especially for health monitoring. It mainly started with fitness trackers, but now we are starting to see connected devices such as blood pressure monitors, including the upcoming watch like Omron HeartVue, thermometer, scales, vital sign monitoring systems, certified medical SBC‘s to allow engineers to developer their own medical applications, and even open source surgical robots. HeartPatch is one of those medical board that specifically aims at measuring ECG data, and sent it over Bluetooth or WiFi thanks to Espressif ESP32 WiSoC. HeartPatch specifications: SoC – Espressif Systems ESP32 dual core Tensilica LX6 processor with Wi-Fi/Bluetooth ECG Chip – Maxim MAX30003 analog front-end USB – 1x micro USB connector for programming, data, power, and battery charging Debugging – USB-UART bridge based on CP2104 Misc – Onboard Snap-on Buttons for disposable electrode pads, RGB LED, Battery – 450 […]

Popcorn Hour RockBox Basic TV Box To Leverage ROCK64 Board Firmware Images

Pine64 launched ROCK64 development board powered by Rockchip RK3328 processor a few months ago. The board exposes fast interfaces like Gigabit Ethernet and USB 3.0, and support 4K video playback, and runs Android 7.1 or various Linux distributions such as Ubuntu 16.04 and others. Pine64 and Cloud Media companies share some of the same owners, and RK3328 being a TV box processor, it should not come as a surprise that Cloud Media has introduced Popcorn Hour Rockbox Basic TV box based on the processor. While the box is running Android 7.1 by default, it will also be support alternative operating systems such as LibreELEC, Android TV OS, Ubuntu, etc… thanks to the work of Pine64/Rock64 community. Popcorn Hour RockBox Basic specifications are quite standard: SoC – Rockchip RK3328 quad core Cortex A53 processor @ 1.5 GHz with Mali-450MP2 GPU System Memory – 1 GB LPDDR3 Storage – 8 GB eMMC […]

Sonoff B1 Smart Light Bulb Review – Part 1 : eWeLink Android App and Teardown

ITEAD Studio has a popular family of home automation devices call Sonoff with WiFi switches, smart sockets, RF to WiFi bridges and so on. All WiFi devices are based on Espressif ESP8266 or ESP8285, and while the company provide a stock firmware working with eWelink app, at least two communities have formed around Sonoff and other similar devices providing two open source firmware alternatives: ESPurna and Sonoff-Tasmota. The company has sent me Sonoff B1 smart RGB light bulb for review. Today, I’ll check out the light with eWelink app for Android, and do a teardown, before trying one of the open source firmware in the second part of the review. Sonoff B1 Unboxing Some Chinese products come in a blank cardboard boxes, but Sonoff’s light bulb comes with in a nice looking retail package that would look good on store’s shelves. One of the side lists the specifications with an […]

Intel Compute Card and Dock Hands On, Windows 10 and Ubuntu Benchmarks

We’ve recently seen Intel introduced Dock DK132EPJ for their Compute Cards, and released some pricing info. Ian Morrison (Linuxium) got sent a full kit by Intel with the dock and Compute Card CD1M3128MK powered by a dual core / quad Core m3-7Y30 processor with 4GB RAM, 128GB PCIe SSD, and Intel Wireless-AC 8265 module. You can get the full details in Ian’s post, but I’ll provide a summary of the key points here. While the compute card and dock are thinner than most product, the computer card is quite wider than TV sticks, and the dock larger than an Intel NUC. It also comes with a fan, and cooling works well with maximum CPU temperature under being 70°C. The Compute Cards do not come with any operating system, but you get to the BIOS easily, and install Windows or Linux distributions. Ian’s started with Windows 10 Enterprise Evaluation, and ran […]

Nokia 3310 3G Dumb Phone Works with 2G & 3G Networks

Many people use smartphones now, but “dumb” feature phones are still being sold, as they are cheaper, some may find smartphones too complicated to use, while others wary about privacy issues. However, most feature phones comes with 2G connectivity, and with 2G sunset in many countries, I’ve recently realized it’s not so easy to find a simple phone with 3G cellular connectivity. The good news is that Nokia 3310 3G has just been announced by HMD global. Nokia 3310 3G specifications: SoC – TBD System Memory – TBD Storage – 64 MB storage; MicroSD card slot supporting up 32GB Display – 2.4” QVGA (320×240) color display Keyboard – “beautiful push buttons and iconic, shaped design” Camera – 2MP camera with LED flash Audio – Headphone jack Cellular Connectivity 2G/ 3G connectivity: dual band 900/1800 MHz +3G Band 1 and 8 (Single SIM) quad band GSM 850/900/1800/1900 + 3G Band 1, […]

Tronxy X3S 3D Printer Review – Part 1: Build and First Prints

Karl here with part 1 of Tronxy X3S build. It is another large volume printer to fully assemble on your own. Taking between 8-10 hours to put together. I have high hopes for this printer. Key things I like: metal frame, dual X, large build volume. Just from looking at it I don’t like the fact that it has no parts cooler but is easy to remedy. Tronxy X3S Specifications Let’s look at some specs. 300 x 300 x 400 mm hot bed (Actually get 330x330x400 build volume) Hot bed temperature: 40 – 110 Deg.C Nozzle temperature: 170-275 Degree Marlin 1.1.5 Frame material: Aluminum Extrusion I have not taken the hotend apart yet so not sure about the nozzle temperature going over 245°C. I will take it apart for the next part. If you are not familiar you don’t want to get lined nozzles above 245°C, or the lining starts […]

Rock960 Board is a 96Boards Compliant Board Powered by Rockchip RK3399 SoC

So it looks like Rockchip is soon going to join 96Boards family with Rock960 board. Developed by a Guangzhou based startup called Varms, the board will be powered by Rockchip RK3399 hexa-core SoC, and comply with 96Boards CE specifications. Rock960 board preliminary specifications: SoC – Rochchip RK3399 hexa-core big.LITTLE processor with two ARM Cortex A72 cores up to 1.8/2.0 GHz, four Cortex A53 cores @ 1.4 GHz, and  ARM Mali-T860 MP4 GPU with OpenGL ES 1.1 to 3.2 support, OpenVG1.1, OpenCL 1.2 and DX 11 support System Memory – 2 or 4GB RAM Storage – 16 or 32GB eMMC flash + micro SD card Video Output – 1x HDMI 2.0 up to 4K@60 Hz with CEC and HDCP Connectivity – WiFi 802.11ac 2×2 MIMO up to 867 Mbps, and Bluetooth 4.1 LE (AP6356S module) with two on-board antennas, two u.FL antenna connectors USB – 1x USB 2.0 host port, 1x […]

2.9″ ESPaper Lite Kit is a $40 ePaper Display Kit with an ESP8266 WiFi Module

Squix (Daniel Eichhorn) has designed a 2.9″ ESPaper Lite Kite is a battery powered kit based on a black and white ePaper module, and ESP-WROOM-02 module based on Espressif Systems ESP8266 WiSoC. 2.9″ ESPaper Lite Kit specifications: Wireless Module – ESP-WROOM-02 WiFi module with Espressif ESP8266 Display – 2.9″ B&W ePaper module with 296×128 pixels resolution connect over SPI to ESP8266 Debugging / Programming – 6-pin serial port header USB – 1x micro USB port for programming Misc – 3 buttons: Reset (wake up from deep sleep);  S0 (flash/GPIO0); S1: user button connected to GPIO12; power switch; charging and (firmware) flashing LEDs Power – JST connector for LiPo battery; charging circuit You’ll need a 3.3V USB to TTL debug board for flashing the firmware to the board, and a LiPo battery to power it up. The solution is particularly useful if you want a battery powered display that is infrequently […]