While we’ve already covered many Rockchip RK3328 TV boxes and development boards, if you want a TV stick form factor the choice becomes much more limited. So far I was only aware of Rikomagic RKM V3 , but today I’ve come across ULEWELL Z28 MINI, selling for about $40 on Aliexpress with 2GB RAM, 16 GB storage, HDMI 2.0a, and a USB 3.0 port. ULEWELL Z28 MINI TV stick specifications: SoC – Rockchip RK3328 quad core Cortex A53 processor @ 1.5 GHz with Mali-450MP2 GPU System Memory – 2 GB RAM Storage – 16 GB eMMC flash Video & Audio Output – HDMI 2.0a up to 4K @ 60 Hz with HDR10 and HLG support Video Codec – 4K VP9, H.265 and H.264. 1080p VC-1, MPEG-1/2/4, VP6/8 Connectivity – 802.11 b/g/n WiFi (2.4 GHz), Bluetooth 4.0 USB – 1x USB 3.0 port Misc – Power button and LED Power Supply […]
Arduino Introduces Two New IoT Boards – MKR WiFi 1010 (ESP32) and MKR NB 1500 (NB-IoT + eMTC)
Arduino introduced its MKR family of breadboard compatible maker boards with MKR1000 featuring an Atmel SAMD21 microcontroller combined with a Microchip WINC1500 WiFi module. The board was followed by MRKZero without wireless connectivity, then MKRFOX1200 Sigfox board, and finally MKR WAN 1300 & MKR GSM 1400 boards at the end of 2017 with LoRaWAN and 3.75G cellular connectivity. The company has now launched two new boards: Espressif ESP32 based MKR WiFi 1010 with WiFi and Bluetooth, and MKR NB 1500 equipped with an NB-IoT & LTE CAT M1 module. Arduino MKR WiFi 1010 MKR WIFI 1010 is an evolution of the MKR1000 board, and is equipped with a U-Blox ESP32 module. Preliminary specifications: MCU – Microchip SAMD21 Cortex-M0+ MCU @ 48 MHz with 32KB SRAM, 256 KB flash memory Wireless Connectivity – 2.4 GHz 802.11 b/g/n WiFi and Bluetooth 4.2 LE via U-blox NINA-W10 Series module based on ESP32 processor. […]
Running out of RAM in Ubuntu? Enable ZRAM
Whenever I ran out of RAM on a Linux system, I used to enable swap memory using the storage device to provide an extra bit of memory. The main advantage is that it’s does not require extra hardware, but come at the cost of much slower access, and potential issues or wear and tear, unless you only use it temporary. This week-end, I compiled Arm Compute Library on ODROID-XU4Q board, and the first time it crashed because the system ran out of memory, so I enable swap on the eMMC flash module to restart and complete the build successfully. However, I was told it would have been better to enable ZRAM instead. So what is ZRAM? Wikipedia explains: zram, formerly called compcache, is a Linux kernel module for creating a compressed block device in RAM, i.e. a RAM disk, but with on-the-fly “disk” compression. So it’s similar to swap, expect […]
How to Get Started with OpenCL on ODROID-XU4 Board (with Arm Mali-T628MP6 GPU)
Last week, I reviewed Ubuntu 18.04 on ODROID-XU4 board testing most of the advertised features. However I skipped on the features listed in the Changelog: GPU hardware acceleration via OpenGL ES 3.1 and OpenCL 1.2 drivers for Mali T628MP6 GPU While I tested OpenGL ES with tools like glmark2-es2 and es2gears, as well as WebGL demos in Chromium, I did not test OpenCL, since I’m not that familiar with it, except it’s used for GPGPU (General Purpose GPU) to accelerate tasks like image/audio processing. That was a good excuse to learn a bit more, try it out on the board, and write a short guide to get started with OpenGL on hardware with Arm Mali GPU. The purpose of this tutorial is to show how to run an OpenCL sample, and OpenCL utility, and I won’t go into the nitty gritty of OpenCL code. If you want to learn more […]
NeTV2 Open Video Development Board Works with Encrypted and Unencrypted Video Streams (Crowdfunding)
Chumby NeTV was an open source hardware Linux IPTV media player based on a Xilinx Spartan FPGA and a Marvell Armada 166 processor, and unveiled in 2011. Many years have passed since then, and now Bunnie Huang has come up with a new version. The NeTV2 development board is also optimized for open digital video application, but based on a more powerful Xilinx Artik-7 FPGA, and a Raspberry Pi 3 B+ can be added for things like seamless JTAG configuration and overlay video generation. Key features and specifications: FPGA – Xilinx Artik-7 XC7A35T-2FGG484 (available with XC7A50T option during campaign only) System Memory – 512 MB RAM, 32-bit wide DDR3-800 Storage – micro SD card, 8 MB SPI flash Video Ports 2x HDMI type A inputs 1 x HDMI type A output 1 x HDMI type D output. One input/output pair configured for in-line ‘NeTV mode’ video filtering. Max Video Bandwidth […]
Lenovo IdeaPad 330 Gemini Lake Laptops Sell for $250 and Up
We’ve previously seen companies unveil Gemini Lake laptops but at price points ($400 to $600) that did not seem right, considering Gemini Lake (GLK) processors should cost about the same as the ones from the previous generation (Apollo Lake). Lenovo has now introduced IdeaPad 330 laptops based on Intel GLK processors with pricing more in line with expectation, as the device will sell for as low as $250 with an Intel Celeron N4000 dual core processor. I won’t list all detailed Lenovo IdeaPad 330 specifications, since it’s actual a family of laptop with a long list of different models with Intel Celeron N4000/Pentium N5000 Gemini Lake processors, but also more powerful Core i3/i5/i7 processors. The company still provided some key features for the laptop, as they will comes in three anti-glare screen display sizes at 14, 15 and 17″ respectively in HD, HD+ and full HD resolution options. Let’s pick […]
Newport GW6400/GW6404 Arm SBC Comes with 5 Gigabit Ethernet Ports, 2 SFP Fiber Ports, and 4 mPCIe Sockets
Gateworks introduced their Newport SBC family based on Cavium Octeon TX Dual/Quad Core Arm processors at the end of last year, and the company has now announced the availability of the higher end models of their networking single board computers with Newport GW6400 & GW6404, which provide four mPCIe sockets for expansion, five Gigabit Ethernet ports, and in the case of GW6404, two optional SFP cages for fiber connections. GW6400 / GW6404 specifications: SoC GW6400 – Cavium OcteonTX CN8120 dual core processor up to 800MHz GW6404 – Cavium OcteonTX CN8130 quad core processor up to 1.5 GHz System Memory GW6400 – 1 GB DDR4 DRAM GW6404 – 2 GB DDR4 DRAM Storage – 8 GB eMMC Flash , micro SD card slot, serial configuration EEPROM Connectivity 5x GbE Ethernet ports GW6404 – Up to 2x optional SFP fiber ports (redirect of one or two of the RJ45 ports to SFP […]
CrowPi is a Portable Learning Kit for Raspberry Pi 3 B+ / Zero Boards (Crowdfunding)
We have an embarrassment of choices for Raspberry Pi accessories from touchscreen displays, HAT add-ons boards, sensors, breadboard, and so on, as well as good software and support from Raspberry Pi forums. This is all good, but it can be messy with all those jumper cables, and not really portable. Elecrow has a neat solution with the CrowPi learning kit for Raspberry Pi 3 and Raspberry Pi Zero that come with a 7″ display, several sensors, buttons, a breadboard, and more all packed in a small suitcase. Main parts of the kit: 7″ touchscreen display Breadboard with GPIOs status LEDs Input modules – Light sensor, IR receiver, PIR motion sensor, sound sensor, temperature & humidity sensor, touch sensor, ultrasonic sensor, NFC reader, and tilt sensor Output modules – 8×8 LED matrix, 4-digit LED display, I2C LCD1602 display, buzzer, vibration motor, relay module, 9G servo, and stepper motor. Control modules – […]