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Khadas VIM3 Review – Part 1: Kit Unboxing and Assembly

We started to read about Khadas VIM3 in May of this year as an Amlogic S922X development board with an M.2 socket for NVMe SSD, and 802.11ac WiFi 5 & Bluetooth 5.0 wireless module. Eventually, Shenzhen Wesion decided to change the processor to Amlogic A311D before the launch last month, since it does not cost much more, but includes a 5.0 TOPS neural processing engine. The company has sent me a Khadas VIM3 kit for evaluation and review. Before going through the software part, and especially the tools for the NPU which will be one of the highlights of the board, I’ll check out what I received today, and show how to assemble the kit. Khadas VIM3 Kit Unboxing The package is rather boring… But what’s really important is what’s inside… We’ve got an enclosure, a smaller package with the board itself, a USB-C power supply, a thermal pad + […]

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Raspberry Pi based Hyper Keyboard Pi & hgTerm Handheld PCs, and RasPi Arcade Stick

There are so many products and projects based on Raspberry Pi that it’s difficult to keep track, and many are often not that interesting, not because they are not useful, but instead because it just feels we’ve seen those before. But this week I’ve come accross three projects that looks to be newsworthy including two handheld computers with a 4″ display, and one retro-gaming console with standard arcade buttons and controls similar to what is found in Pandora’s Box/Key 5S. hgTerm DIY Raspberry Pi  Handheld Computer hgterm is a portable computer based on a stripped down Raspberry Pi 3 where the Ethernet port, HDMI port, and most of the USB ports have been removed. It features a 4″ touchscreen display, a Bluetooth keyboard all housed in a 3D printed case. It’s not actually a product that you can buy (yet), but a project made by Igor Brkić which you can […]

ArmSoM CM5 Raspberry Pi CM4 alternative with Rockchip RK3576 SoC
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RAK Wireless Introduces DIY Cellular LoRa Gateways, Raspberry Pi & 96Boards Compatible LoRa Modules

RAK Wireless already has a decent offering of LoRa gateways and modules, but the company has been working on two new LoRa gateways, one Enterprise grade model – RAK7249 gateway – based on fully custom hardware, and the other – Pilot Gateway Pro RAK7243 – features a Raspberry Pi 3B+ board with Cellular & GPS connectivity on top of a LoRa radio. RAK Wireless will also introduce three RAK2245/RAK2248 LoRa concentrator modules that can easily be used with boards following Raspberry Pi, or 96Boards IoT edition form factors. RAK7249 DIY Enterprise LoRa Gateway Specifications: Main Board WiFi Module – RAK634 Module SoC – Mediatek MT7628N MIPS processor @ up to 580 MHz System Memory – 128MB DDR2 RAM Storage – 16MB SPI flash Connectivity – WiFi: 2×2 MIMO 802.11b/n/n mPCIe LoRa concentrator card Semtech SX1301 based Standard version with 8 channel Gateway and also support Max.16 channel Gateway. Tx Power […]

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Hexabitz Modular Prototyping Platform Enables Wire-Free 3D Electronics Designs (Crowdfunding)

A few years ago, I made a Raspberry Pi case made of perfboard and created some sort of DIY modular 3D electronics design by using the top and sides of the case to also hold electronics components and associated circuitry like a relay, and LEDs. The just launched Hexabitz hexagonal / pentagonal modules are designed to make prototyping easier, and also provide flexibility to create all sort of wire-free (3D) electronics designs with minimal soldering. A little over a dozen of modules are currently on offer, most with an STM32F0 Arm Cortex M0 micro-controller: Modules with built-in MCU 01R00, P01R00 – RGB LED (hexagon / pentagon) with Cree Tri-color (RGB) SMD LED, 4-Pin PLCC H02R10 – Bluetooth/BLE V4 based on Laird BT900-SA + chip antenna, +8 dBm max H04R00 – Audio amplifier, speaker, and headphone jack based on ST TS4990IST 1.2W audio power amplifier, 0.7W, 8 Ohm speaker H05R00 – SPI […]

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Measy RCA220 is a $35 Wireless AV Transmitter / Receiver Kit with a 200m Range

There are several ways to send video & audio data over a distance without using long cables, from professional DVB-T transmitters with up to 10km range, to cheaper DIY SDR solutions with a shorter range , and HDMI transmitters leveraging your existing electrical cables. Those all work for different target applications (drones, video signal extender), but cost at least a few hundred dollars. If you just intend to transmit composite video (PAL/NTSC) and audio within a house or building, Measy RCA220 will be a more cost effective solution with a range of up to 200 meters. Measy RCA220 AV transmitter / receiver specifications: Connectivity – 2.4GHz wireless transmission with up to 200m range; built-in antenna, 8x selectable channels Video / Audio Ports Transmitter – RCA composite input, 2x RCA L/R audio input Receiver – RCA composite output, 2x RCA L/R audio output Misc – IR jack, channel selection button, front […]

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Kite is an Open Source Hardware Android Smartphone Powered by Snapdragon 450 Processor (Crowdfunding)

Kite is an open source hardware Android phone kit specifically targeting makers which you can assemble yourself into a Kitephone. The phone is based on a Qualcomm Snapdragon 450 mainboard (Kiteboard v2), and comes with  a 720p touchscreen display module, a 12MP camera, antennas, buttons, a 3,000 mAh battery, and a Raspberry Pi HAT compatibility board to optionally interface to external hardware. Kiteboard v2 specifications: SoC – Qualcomm Snapdragon 450 octa-core Arm Cortex A53 @ 1.8 GHz with Adreno 506 GPU System Memory – 2 GB RAM Storage – 16 GB storage + microSD card slot Connectivity Cellular LTE Cat. 6/3G/2G, 2x nano SIM slots (dual-SIM dual standby) Two variant North America with LTE FDD Bands: 2,4, 5, 7, 12, 13, 14, 25, 26 LTE TDD Bands: 41 WCDMA 850, 1700, 1900, 2100 GSM 850, 1900 Rest of the World (Europe, Russia, etc…) LTE FDD Bands: 1, 3, 5, 7, […]

Rockchip RK3568, RK3588 and Intel x86 SBCs abd SoMs
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How to Use 3G and GPS on Raspberry Pi with ThaiEasyElec 3G HAT Expansion Board

Venus Supply is an embedded systems company based in Bangkok, Thailand that sells products through their ThaiEasyElec website/brand, as well as a act as a local distributor for popular DIY electronics items. I previously tested their ESPino32 ESP32 board, and the company has now send me another of their new product called “3G HAT Expansion for Raspberry Pi” and based on Quectel UC20-G that support 3G and GPS/GLONASS connectivity globally, meaning it should work in any country with 2G or 3G coverage. After listing the specifications, going through unboxing and assembly with a Raspberry Pi 2/3 board, I’ll write some quick start guide to show what I had to do to use GPS and connect to 3G with a Hologram SIM card. 3G HAT Expansion for Raspberry Pi Specifications Quectel UC20-G wireless module supporting Cellular 3G – UMTS @ 800/850/900/1900/2100 MHz 2G – GSM @ 850/900/1800/1900 MHz Data – HSPA+ […]

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BigClown is a Battery Powered Modular Wireless IoT Kit for Makers (Crowdfunding)

BigClown IoT Kit is designed to be as easy to use as building a castle from LEGO bricks or an IKEA cabinet. The open source kit is comprised of a coreboard module with STMicro STM32L0 Cortex M0+ micro-controller, and a sub GHZ (868/915MHz) radio for wireless communication, that accepts one or more compatible modules (currently ~30 different options), and communicate to a gateway such as Raspberry Pi or Turris Omnia where you’d connect BigClown RF USB dongle, although it’s also possible to include a Sigfox module for communication, and , LoRa & NB-IoT module appear to be planned. That’s for the hardware…The kit then connects to your chosen gateway via MQTT, which in turns accesses cloud services such as Ubidots, Microsoft Azure IoT, AWS, IFTTT, etc… , and you can monitor the data or control the kit through a web based dashboard or your own application. Core Module specifications: MCU […]

Boardcon Rockchip RK3588S SBC with 8K, WiFI 6, 4G LTE, NVME SSD, HDMI 2.1...