MAXOAK K2 Laptop Power Bank Review – Part 2: Tests with Laptops, Phones and Development Boards

MAXOAK K2 is a large capacity (50,000 mAh) power bank designed for laptop with ~20V and 12V outputs, but it can also charge USB devices thanks to its 4 USB ports. Since I’ve already checkout the device and specifications in the first part of the review, I’ll report results from my tests with the power bank in the last couple of weeks. Since the power bank had some charge, more exactly between 50 and 75% (2x LEDs on, 1x LED blinking, 1x LED off), I decided to start by charging my phone, Vernee Apollo Lite, which is equipped with a 3,180 mAh battery. So I connected the phone to one of the two 5V/2.1A USB port, together with USB Charger Doctor to monitor voltage and current, and with 50% charge, the phone would draw around 5.07V @ 1.15 A. Note that the voltage and amperage will change depending on battery […]

Rikomagic RKM R1 Mini Projector Review – Part 2: Android Firmware, Kodi, Touchpad, and HDMI Input

Rikomagic RKM R1 is a projector running Android 4.4.4, and powered by Rockchip RK3128 quad core Cortex A7 processor with 1GB RAM, and 32GB storage. It has a particular feature as it comes with a touchpad on the top of the case as we’ve seen in the unboxing and teardown part of the Rikomagic R1 review. Today, I’ll report my experience with the projector playing games in Android, 1080p videos with Kodi 14.2, using the touchpad, and connecting a laptop through the HDMI input port. I’ll also run some benchmarks as usual. RKM R1 Android User Experience and HDMI Input I wanted to relax and use the projector on the bed pointing to the ceiling. RKM R1 comes with a tripod, but it’s quite small, not the projector would fall off, so I used my own tripod, connected a USB keyboard, and the USB RF dongle for Tronsmart Mars G01 […]

Creality CR-10 3D Printer Review – Part 1: Unboxing, Setup, and First Prints

Today we are going to take a first look at the Creality CR-10 3D printer. This is a multipart series with the first part being unboxing and initial setup. I have no experience with 3D printing, and when I found out I would be doing this review I was ecstatic. It took a while to get shipped because of the wild popularity at Gearbest. I believe supply has caught up with demand. While waiting I read as much as I could about 3D printing. and I am glad I did. Creality CR-10 3D Printer Specifications 300 x 300 x 400mm build volume Nozzle diameter: 0.4mm Memory card offline print: SD card Prints up to 80mm/s (but slower is better) File format: G-code, JPG, OBJ, STL (I have only done g-code) 1.75mm Software – Cura; octoprint compatible CR-10 3D Printer Unboxing and Setup I had the CR-10 assembled and printing in […]

Sen5 Dual Tuner Android Set-top Box Review – Part 1: Unboxing and Teardown

There are only a few companies manufacturing Android TV boxes with tuners with names like VideoStrong and WeTek coming to mind. Shenzhen Sen5 Technology is another one, and the company sent me one of their DVB combo Android TV boxes for review without providing that many details. So let’s have a look at what I received. Sen5 Android Combo STB Unboxing The product might be not ready for retail just yet, as I received it in an old carton box. Once I remove all the bubble wraps, I ended up with the device, an IR remote control, and a 12V/1.5A power supply. Once the product is actually launched I’d expect you’d receive a retail package and a user’s manual too. The box itself is made of plastic with plenty of randomly arranged (ventilation) holes on the top. The front panel comes with an IR window and a “Standby button”, one […]

NanoPi NEO2 Board Benchmarks with Ubuntu 16.04.2 using Linux 3.10 and Linux 4.10

I’ve received NanoPi NEO 2 boards, add-boards and sensor modules last week, where we could see how small the boards were, and how it could be suitable for IoT projects or “hardware hacking” education.  Before testing the board with the add-ons, I have to select the image to run on the board, and currently we have two choices: Ubuntu 16.04.2 FriendlyELEC image with Linux 3.10 “legacy” kernel, or Armbian Ubuntu 16.04.2 Xenial nightly build with Linux 4.10 “mainline” kernel. So I decided to try both: dfssf nanopi-neo2-ubuntu-core-qte-sd4g-20170329.img.zip (296 MB) is the image from FriendlyELEC (previously FriendlyARM) Armbian_5.27.170401_Nanopineo2_Ubuntu_xenial_dev_4.10.0.7z (222 Mb) is the image from Armbian, which I downloaded on March 31st despite the filename including “170401” string You can flash the image with Win32DiskImager (Windows) or dd (linux) to a micro SD card the usual way, and while I’ve never personally had troubles with dd, I’ve been told Etcher was better, […]

MAXOAK K2 is a 50,000 mAh Power Bank Designed for Laptops, Cameras and Mobile Devices

Most of the time I receive samples by courier 3 or 4 days after the company sends it, but sometimes I’m being sent devices over airmail which may take 2 to 3 weeks, or even more. Today, I received such a parcel with no clear description on the package, and a relatively heavy blank carton box. But I remembered somebody told me they’d send a large power bank for laptops. Could it be it? Sure enough. The power bank is called MAXOAK K2, and claims to offer a 50,000 mAh capacity using a Polymer Li-on battery. All connectors and buttons can be found on one side with the DC jack, four charging/capacity LEDs, the power button, 20V/3A and 12/2.5A barrel outputs, and four USB ports with 5V/2.1A or 5V.1.0A output. Most of the laptops I’ve used were powered by 19V or 19.5V adapters, so I’m not sure it’s safe to […]

Rikomagic R1 Android Projector Review – Part 1: Unboxing and Teardown

Rikomagic R1 Android mini projector runs Android 4.4 on Rockchip RK3128 quad core processor, and the company sent me a sample for review, so today I’ll first do an unboxing, and partial teardown, before testing the projector in more details in the second part of the review. Rikomagic R1 Projector Unboxing The projector comes with a white package marked RKM R1. The bottom of the package indicated its unsurprisingly based on Texas Instruments DLP technology with a LED light, and is equipped with a touch panel and a battery. More importantly, there’s a QR code that links to R1 Setup Guide, which for once will be useful, as this device has some unique features. The projector ships with a 5V/2.5A power supply, an IR remote control, a HDMI cable, a tripod, and an adapter to make the interface between the projector box and the tripod. The top of the device […]

NanoPi NEO2 Board, NanoHats, and BakeBit Starter Kit Review – Part 1: Hardware Overview & Assembly

NanoPi NEO 2 development board is an update of NanoPi NEO with a quad core 64-bit Allwinner H5 processor + 512 MB RAM, Gigabit Ethernet, and an extra audio header, which can be a great little board for headless application since there’s no video output. FriendlyELEC ask me whether I wanted to review to board with some of their NanoHATs add-on boards, and while I asked for NanoHat PCM5102A audio board and NEO Hub which I intended to use with Grove modules from my Wio Link Started Kit, I get a bit more than expected, as the company included sets of NEO 2 boards and accessories, NanoHATs, two serial debug board, and their BakeBit Starter Kit with several Grove modules to play with. Since I have so many things to look at in this first post, I’ll just describe the hardware, assemble it, quickly check the paper documentation, and give […]

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