Review of Sonoff B1 Smart RGB Light Bulb – Part 2: Sonoff-Tasmota Firmware

I’ve already reviewed Sonoff B1 light bulb using the stock firmware combined eWelink app for Android, and as promised in the first part of the review, I’ve also tested the ESP8285 based WiFi light bulb with Sonoff-Tasmota open source firmware, and report my findings in this new post. Before we can play with the new firmware, we need to install it, and I’ve just explained how to upgrade Sonoff devices to Sonoff-Tasmota firmware either using some soldering skills and a USB to serial board, or some network configuration skills and perform an OTA update using ITEAD Studio/eWelink original firmware update mechanism. So for this part of the review, I’ll assume we have just freshly update the light bulb with Sonoff-Tasmota using the binary images released by the developer. First, you’ll need to find the IP address of the light bulb with your router or tools like nmap or arp, and […]

$99 101Hero PYLON is a Poor 3D Printer, But Could Prove Useful to Learning 3D Printing Technology

Anet A8 was one of the first sub $200 3D printer I found last last year, reviews were surprisingly positive. It is now sold for around $150 shipped (with A8PRINT coupon), and experienced reviewers often recommend it to people wanting to get started with 3D printing on a budget. But last week, as I browsed products on Banggood, I found something even cheaper with 101Hero PYLON 3D printer going for $107.99 shipped with coupon 349da5, and further research lead me to the official website where they sell it for $99 excluding shipping, and provide documentation and video tutorials. 101Hero PYLON 3D printer specifications: Printing technology  – FDM (Fused deposition modeling) Host Material – Steel + ABS XYZ Bearings – Steel Print Size – 100 x 100mm Layer thickness – 0.1mm Nozzle diameter – 0.4mm Printing material – PLA Material Diameter – 1.75mm Power Supply – 20W Dimensions – 260 x […]

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 […]

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 […]

NanoPi Duo Starter Kit Review – Part 1: Unboxing and Assembly

NanoPi Duo is an inexpensive Allwinner H2+ quad core board with 256MB or 512MB RAM that can fit into a breadboard, and FriendELEC also provides a starter kit with a carrier board, heatsink, enclosure, USB debug board and cable, as well as optional accessories such as an half-length SSD drive. The company sent me two kits for review, so I’ll first check out what I got, and show how to assemble the kit, before actually playing with the board and kit next month. NanoPi Duo Starter Kit Unboxing I got a bunch of boxes and bubble wraps in the package… … and indeed received two identical kits. Each kit comes with a NanoPi Duo board with soldered headers, a mini Shield for NanoPi Duo, a heatsink and thermal pad set, a micro USB to USB cable, a USB to TTL debug board and cable, and acrylic case, and user manuals […]

Checking Out Debian and Linux SDK for VideoStrong VS-RD-RK3399 Board

VideoStrong VS-RD-RK3399 (aka VS-RK3399) is a features-packed development board powered by Rockchip RK3399 hexa core core processor which offers an alternative to Firefly-RK3399 board. The company sent me a development kit for evaluation, and I’ve already looked into VS-RD-RK3399 hardware and SDK in the first part of the review. Today, after shortly looking into the pre-installed Android 7.1 OS to make sure the board boots fine, I’ll report my experience with Debian 9, and building it from source. A Quick Look at Android 7.1 I connected the board to my HDMI TV, added an Ethernet cable, and after powering it, VS-RK3399 promptly booted into Android 7.1 with the following launched. It just has a few apps pre-installed, and lack Google Play store, but as I’ve seen in the new version of the SDK, a patch for Google Play store is provided, if that’s something you need for your use case. […]

MeLE PCG35 Apo mini PC Review – Part 1: Unboxing, Teardown, and M.2 SSD / SATA HDD Installation

MeLE PCG35 Apo is a mini PC powered by Intel Pentium J3455, one of the most powerful Intel processors from Apollo Lake family, coupled with 4GB LPDDR3, 32GB eMMC flash and support for M.2 SSD and 2.5″ SATA HDD/SSD. The company sent me a sample for review, and I’ll start by taking photos of the device, accessories, and internal design, as well as showing how to install an M.2 SSD and 2.5″ SATA drive, before publishing the second part of the review with Windows 10 at the end of next month. MeLE PCG35 Apo Unboxing The mini PC comes with the usual black package with gold fonts the company has used us to. The side shows the main specifications of the fanless mini PC. The mini PC, which comes with an aluminum heatsink shaped as number 6, ships with a 12V/2A power supply plus UK, AU, US, and EU plug […]

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