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MeanWell Mini Switching Power Supplies May Be Useful for Development Boards

While some people or organizations with lots of boards may use high-end USB hubs to power and control them, most people likely use wall adapters to power their development boards like Raspberry Pi 3, ASUS Tinkerboard, Orange Pi PC, and so on. At least that’s what I do, except in some cases when I suspect power issues, and I go with a more powerful SMPS (switch mode power supply). I don’t use it often because it’s a large brick and expose 220V. But the other day, as I attended Chiang Mai Maker Party, I found one maker uses some tiny (and cute) power supply from a company called Mean Well to power his Raspberry Pi boards. The model used above with RS-15-5 with takes 100-240VAC 0.35A input, and output 5VDC up to 3A. The power supply include AC Neutral, AC Live, Ground, DC V+ and DC V-  pins where you […]

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Gumstix AutoBSP Automatically Generates Device Tree Files for Hardware Designed with Geppetto

Gumstix launched Geppetto Design-To-Order (D2O) system back in 2013, and at the time you could design complete baseboard for their Overo CoMs right in your Chrome or Firefox web browser, and once complete, order the board from the website. The system is meant to save you time, and “design” here does not mean drawing schematics, and laying out PCBs, but instead selecting board size, and adding ports as needed. Since then, the company has added support for more modules, and you can now easily build you own baseboard for Raspberry Pi Compute Module, Technexion PICO-IMX6 module, Toradex Colibri SoM, 96Boards Mezzanine, and they even have Beaglebone Black and 96Board CE or IoT connectors, among others. Support for Qualcomm DragonBoard 410c, Atmel (Arduino) , and STMicro platforms is also being worked on. Their latest feature – AutoBSP – automatically generates device tree files for your custom boards, so you can simply […]

Khadas Edge2 Arm mini PC
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A Day at Chiang Mai Maker Party 4.0

The Chiang Mai Maker Party 4.0 is now taking place until December 9, and I went there today, as I was especially interested in the scheduled NB-IoT talk and workshop to find out what was the status about LPWA in Thailand. But there are many other activities planned, and if you happen to be in Chiang Main in the next few days, you may want to check out the schedule on the event page or Facebook. I’m going to go though what I’ve done today to give you a better idea about the event, or even the maker movement in Thailand. Booth and activity area should be the same over the 4 days, but the talks, open activity, and workshop will be different each day. Today, people could learn how to solder in the activity area. The even was not really big with manufacturers/sellers like ThaiEasyElec, INEX, or Gravitech closer […]

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Libre Computer Renegade SBC Features Rockchip RK3328 Processor with up to 4GB DDR4 RAM (Crowdfunding)

After Amlogic S905X based Le Potato board, and the on-going Kickstarter campaign for  Tritium Allwinner H2+/H3 boards, Libre Computer has now launched an Indiegogo campaign for their Renegade SBC (Single Board Computer) powered by Rockchip RK3328 SoC. The board follows Raspberry Pi 3 form factor like the two previous models, and three versions of the board are offered with 1, 2 or 4GB RAM, making Renegade SBC a direct competitor to Pine64 ROCK64 board. Renegade SBC specifications: SoC – Rockchip RK3328 quad core Cortex A53 processor with ARM Mali-450MP2 GPU System Memory – 1, 2, or 4 GB DDR4 Storage – eMMC 5.x flash module socket (8 to 128 GB) + micro SD card slot Video & Audio Output – HDMI 2.0a up to 4K @ 60 Hz with HDR10 and HLG support, 3.5mm AV port (composite video + stereo audio) Video Codec – 4K VP9, H.265 and H.264, 1080p […]

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Top 5 Most Powerful Arm SBCs & Development Boards in 2017 / Early 2018

Raspberry Pi, Orange Pi, and NanoPi boards among others are all great and inexpensive Arm Linux development boards that do good enough job for many tasks, but they may not cut it if you have higher requirements either in terms of CPU power, GPU capabilities and performance, I/O bandwidth, and in some cases software and support. So I’ve decided to make a list of 5 single board computers or development boards that I consider to be the most powerful in 2017, early 2018. I have limited the price to $1,000 maximum, the board must be easy to purchase for most people (e.g. you don’t need to be a tier-1 automotive supplier, or operate your own datacenter), and in case the board is not quite available yet, the likeliness of actual launch must be reasonably high. Those criteria for example exclude Intrinsyc Open-Q 835 development kit since it costs $1.149 and […]

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Armbian v5.35 Released with Linux 4.13, U-boot v2017.09, New Boards Support

Armbian v5.35 has been released last Friday as a major update that brings Linux mainline kernel to version 4.13, U-Boot mainline to version v2017.09, adds support for 7″ Raspberry Pi display, Realtek WiFi drivers (mainline), and new stable hardware support for NanoPi Duo, Pinebook, and Orange Pi R1. Some other boards got experimental support, including Le Potato, NanoPi NEO 2, Orange Pi Zero Plus, Orange Pi Zero Plus 2 (H5). The desktop version of the images gets a full featured XFCE terminal, OpenVPN connector, a new wallpaper, and various other changes and fixes. armbian-config is normally used to configure the board for example networking configuration, but the utility has become even more useful with support for Hotspot, Bluetooth, SSH server configuration, swtich between stable & beta builds and between kernel applications, adds the ability to start an RDP server, and install third party software such as SAMBA, OpenMediaVault, PiHole, Transmission […]

Rockchip RK3568/RK3588 and Intel x86 SBCs
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Review of ITEAD Studio IP66 Waterproof Case for Sonoff Wireless Switches (and Other Boards)

ITEAD Studio recently launched a waterproof enclosure for $2.90 (now at still a decent $3.90), rated IP66, for their family of Sonoff wireless switches, so you can safely use them outdoors protected from rain and dust. The company sent me one sample together with Sonoff RF switch supporting WiFi and 433MHz RF connectivity so that I can test the case, and write a review describing my experience. I’ll focus on the waterproof since this is the main focus of this review, and beside Sonoff RF, you can also use Sonoff basic, various other Sonoff boards (POW, TH10/T16), and even other development boards as we’ll seen below. I’ll be using the stock firmware with eWelink app, but if you prefer alternative firmware like ESPurna or Sonoff-Tasmota, you may want to flash it to your Sonoff now. The waterproog case has two parts, a rubber cord, two waterproof PG7 connectors, and four […]

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Detect Lightning with Those AMS AS3935 “Thunder” Boards

Launched in 2012, AMS AS3935 Franklin lightning sensor  is – at its name implies – a lightning sensing IC. The chip was designed for low power, portable or fixed wire-line applications, and beside detecting electrical emissions from lightning activity, it can also provide an estimation of the distance to the head of the storm from 40km away down to 1km, while filtering out other signals from motors, microwave ovens, etc… The chip interfaces via SPI or I2C to the host processor / micro-controller, and comes in a small MLPW-16 (4x4mm) package. Price is $3.55 per unit for 1k orders. Applications include wearables, golf carts, pool safety, portable GPS, bike computers, weather stations, uninterruptible power supplies, smart grid systems, environmental monitoring systems, etc… Basically, AS3935 can be used either for weather monitoring, or safety applications. I’ve found two maker boards with the chip: MikroElectronika Thunder Click board compatible with MikroBUS socket […]

Khadas VIM4 SBC