Jean-Luc Aufranc (CNXSoft), Author at CNX Software - Embedded Systems News

January 13, 2020January 13, 2020 by Jean-Luc Aufranc (CNXSoft) - No Comments

Getting Started with Amlogic NPU on Khadas VIM3/VIM3L

Shenzhen Wesion released the NPU toolkit for Khadas VIM3/VIM3L last November, so I decided to try the latest Ubuntu 18.04 image and the NPU toolkit on Khadas VIM3L, before switching to VIM3 for reasons I’ll explain below. I’ve followed two tutorials from the forum and wiki to run pre-built samples and then building a firmware image and samples from source. Khadas VIM3L and VIM3 Have Different & Optional NPUs This will be obvious to anyone who read the specs for Khadas VIM3 and VIM3L that the former comes with a 5 TOPS NPU, while the one in the latter only delivers up to 1.2 TOPS. But somehow, I forgot about this, and assume both had the same NPU making VIM3L more attractive but this type of task, Obviously I was wrong. But the real reason I stopped using Khadas VIM3L can be seen in the photo below. My board is […]

January 11, 2020January 11, 2020 by Jean-Luc Aufranc (CNXSoft) - 14 Comments

$2 Wemos W600-PICO WiFi IoT Board Ships with MicroPython Firmware

Wemos has designed some great WiFi IoT boards over the last few years with products like Wemos D1 mini or Lolin32 based on Espressif Systems ESP8266 and ESP32 processors respectively. But the company has recently launched its cheapest board ever, with W600-PICO board going for just $2.10 + shipping. The board is based on Winner Micro W600 Arm Cortex-M3 WiSoC, and comes pre-loaded with MicroPython firmware. Wemos W600-PICO V1.0.0 specifications: SoC – Winner Micro W600 Arm Cortex-M3 MCU @ 80MHz with 1MB Flash Wireless Connectivity – 2.4GHz 802.11 b/g/n WiFi 4 up to 150 Mbps USB – 1x Micro USB port for power and programming (via CH340 USB to TTL chip) Expansion – 2x 10-pin headers with 15x GPIO, 9x PWM, 1x I2C, 1x SPI, 1x UART, Wake Up, Reset, 5V, 3.3V, and GND signals; 3.3V I/O voltage. Misc – Reset button Power Supply – 5V via micro USB port […]

January 10, 2020January 10, 2020 by Jean-Luc Aufranc (CNXSoft) - 12 Comments

Xiaomi Redmi AC2100 Router Sells for $35 and Up

Xiaomi has launched several affordable WiFi routers over the years. Their latest model is called Xiaomi Redmi AC2100 Router and comes with a dual-core, quad-thread MIPS processor, 128MB storage, WiFi 5 with 6 antennas, and four Gigabit Ethernet ports. Xiaomi Redmi AC2100 router specifications: Processor – MediaTek MT7621A dual-core/quad-thread MIPS processor @ 880MHz System Memory – 128MB RAM Storage – 128MB flash Connectivity Wireless 2.4GHz 2×2 Wi-F 802.11n @ 300Mbps 5G 4×4 WiFi 802.11ac @ 1733Mbps 6x external high gain (5dBi) antennas Security – WPA-PSK / WPA2-PSK encryption, wireless access control (black and white list), hidden SSID, intelligent anti-scratch network Ethernet 1x 10/100/1000Mbps WAN (Auto MDI/ MDIX) 3x 10/100/1000Mbps LAN (Auto MDI/ MDIX) Misc – 2x LEDs Indicators (Internet and System), Reset pin hole Power Supply – 12V/2A Dimensions – 259 x 176 x 184mm The router is said to come with MiWiFi firmware based on OpenWrt with “deep customization”, […]

January 10, 2020February 16, 2020 by Jean-Luc Aufranc (CNXSoft) - 4 Comments

SimplePnP is a Low-Cost, Open Source Hardware Pick-and-Place Machine (Crowdfunding)

If you have a small production run for your board, it may not be cost-effective to ask a factory to manufacture it for you, and assembling the boards entirely by hand will be a time-consuming process. Getting a pick-and-place machine to automate the process would save time, but even the cheaper models on Aliexpress cost several thousand dollars. Citrus CNC tries to address the cost issue with the SimplePnP open source hardware pick-and-place machine that brings the price down to several hundred dollars. SimplePnP key features and specifications: MCU – Microchip Atmega328p running GRBL firmware Motor Drivers – TMC2209 stepper for two-phase stepper motors Word Area – 300 mm (X) x 300 mm (Y) Z Travel – 23 mm Components per Hour – 750 with vision assist Component Size – As small as 0402 (1005 metric) Vacuum Heads – Single vacuum head (base model), or optional dual-head Nozzle System – […]

January 10, 2020April 23, 2020 by Jean-Luc Aufranc (CNXSoft) - 19 Comments

Seeeduino XIAO is a Tiny Arduino Zero Compatible Board with Battery Support

Seeeduino XIAO is the smallest Arduino compatible board from SeeedStudio’s Seeduino family. Measuring just 23.5×17.5 mm, the board is equipped with Microchip SAMD21 Arm Cortex-M0+ microcontroller and exposes various digital and analog I/Os. Seeduino XIAO specifications: MCU – Microchip SAMD21G18 ARM Cortex-M0+ microcontroller at up to 48MHz with 256KB Flash,32KB SRAM USB – 1x USB type C port for power and programming Expansion I/Os 2x 7-pin headers with 11x analog inputs, 11x digital I/Os, 1x DAC, SPI, UART, and I2C 3.3V I/O voltage (not 5V tolerant) Misc – 1x user LED, power LED, 2x LEDs for serial port downloading, Reset pads, SWD pads, 32.768KHz crystal oscillator Power Supply – 5V via USB-C power, power pads (VIN/GND) for battery Dimensions – 23.5×17.5×3.5 mm All main components are placed under a shield, but there may be some charger chip (nope: see comments) as the company explains the board supports batteries via the […]

January 9, 2020February 29, 2020 by Jean-Luc Aufranc (CNXSoft) - 24 Comments

NComputing RX420(HDX) Raspberry Pi 4 Thin Client Works with Citrix HDX

NComputing RX300 Raspberry Pi 3 thin client was launched in 2017 with support for the company’ vSpace Pro desktop virtualization solution for Linux and Windows, and I tested it accessing a Windows Server 2006 host located in Singapore, and performance was pretty good for a remote system as I could play 1080p YouTube videos, browse multiple tabs in Chrome, etc.. relatively smoothly. This type of solution is aimed at businesses, for which it may be easier and cheaper to handle a fleet of devices using thin clients and servers, instead of traditional PC’s. Beside its vSpace Pro RX300 thin client, NComputing also introduced another Raspberry Pi 3 thin client that same year with RX-HDX using a design similar to RX300 but instead integrating support for Citrix HDX virtualization technology. NComputing now unveiled an update for the latter with RX420(HDX) thin client based on Raspberry Pi 4 SBC with 2GB RAM. […]

January 8, 2020 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

LivingPackets THE BOX Reusable Packaging Comes with an E-ink Display, Removes the Need for Filling Materials

E-commerce and online shopping have flourished over the years whether you shop on Amazon and from sites in China. But that also means lots of carton board packages are being used and often thrown away after use, although personally I like to reuse them if I need to send packages myself. So it would be good if there was a way to reduce carton board package waste, and that’s exactly what LivingPackets is attempting to do with “THE BOX” which features an E-Ink display to display the recipient address and other information, and is meant to be re-used up to 1000 times. Here are some of the key features of THE BOX: E-Ink Display – Replaces the usual printed address label. It can be updated easily and does not consume power when not updated. Button to allow easy returns Integrated Holding Mechanism – Patented a holding system to replace bubble […]

January 8, 2020 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

OmniVision OA805 4K Video Camera SoC Supports 100 ms Boot Time, 4K HEVC Encoding

OmniVision OA805 Arm Cortex-A5 4K video camera processor is specifically designed for battery operated security and surveillance cameras, including video doorbells, with the ability to encode 4K30p video streams with HEVC/H.265 video codec at very low power consumption. The processor also has a very short boot-up time of just 100ms, meaning it can go from completely powered off to fully functional upon trigger by a motion detection sensor. That short boot time removes the need for standby or sleep mode further lowering the power consumption and allowing the camera to have up to two years of battery life (albeit no mention of battery capacity was made…). OmniVision OA805 specifications: CPU Main CPU – Arm Cortex-A5 processor with NEON, 32KB I-cache, 32KB D-cache Secondary CPU (SPU) – Arm Cortex-A5 processor with NEON, 32KB I-cache, 32KB D-cache Media Processing Unit (MPU) – 32-bit RISC MCU with 8KB I-cache, 8KB D-cache System Memory […]