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July 21, 2018July 21, 2018

Pi-Zero-UpTime is an UPS for Raspberry Pi Boards and Clones

Since for a headless Raspberry Pi it makes no sense to use a large UPS (Uninterruptible Power Supply) to keep it running in case of power failure, I bought and tested a Raspberry Pi battery kit a couple of years ago. The kit included an acrylic case, a battery charging board, and LiPo battery and it worked most of the time as a UPS. “Most of the time” means the switch from mains to battery would not occur fast enough maybe 10% of the time (it depends on the load), so the Raspberry Pi board would reboot. The kit also did not include a GPIO / I2C interface to report the charge level of the battery, so you would not be able to safely power the board when the battery is almost fully depleted. In recent years, it’s become more and more difficult to get batteries shipped from overseas, so […]

July 14, 2018September 28, 2021

ROC-RK3328-CC Board Review, or the Case for Fast Storage and Adequate Power Supply

Firefly team from T-chip company has send me some of their Rockchip development boards, and we’ve already checked the provided boards and accessories, so today I’ll report my experience with one of the board: ROC-RK3328-CC also known as Renegade. I won’t test it with Android, since I have already reviewed RK3328 Android TV boxes such as Zidoo X7, and I’ve been told the team is hard at work with Android 8.1 SDK, so an Oreo image should be released in a few weeks/months. So I had initially planned to report my experience with one of the Linux images, then show how to install mainline Linux (currently 4.17) to the board, and reports what works. However, I encountered many issues, although likely not directly related to the board or its software support, so instead I’ll write about my experience getting started with the board, and list all the issues I had […]

ArmSoM RK3588 AIModule7 NVIDIA Jetson Nano-compatible SOM

July 11, 2018July 11, 2018

This Soldering Pen Board with Audio Jack Supports Weller RT Tips

The 3.5mm audio jack may be slowly disappearing from new mobile phones, but I’ve recently discovered they were also used in some soldering irons such as the upcoming TS80 USB soldering iron succeeding TS100 model. I initially thought it was a custom design from the maker of TSxxx soldering irons, but this morning I’ve come across the “RT Soldering Pen” board which also features a 3.5mm (audio) jack and can be used to make your own soldering iron by 3D printing your own enclosure, adding some power source, and inserting one of the many Weller RT tips available into the jack. RT soldering pen board specifications: MCU – STMicro STM32F031 Arm Cortex-M0 micro-controller Display – 0.91″ OLED display with 128×32 resolution Compatible with all Weller RT tips with 3.5mm jack. Set-point temperature – 20°C – 400°C with about +/-5°C accuracy (calibration is planed) Maximum measurable temperature – 500°C Heating speed […]

June 15, 2018June 26, 2018

Wemos LOLIN D32 Pro ESP32 Board Supports TFT Displays, Comes with a micro SD Card Slot

Wemos is popular for their low cost WiFi board based on Espressif SoCs. Their most popular board is ESP8266 based Wemos D1 mini thanks to its compact form factor, low price ($5 shipped), and available add-on boards. But they’ve also launched some ESP32 in the last year or so with development boards such as Wemos LOLIN32 Lite. Their latest ESP32 board – LOLIN D32 Pro v2.00 – features ESP32-WROVER module, and beside exposing I/Os via breadboard compatible headers, also offers a micro SD card slot, a TFT display connector, and an I2C header. LOLIN D32 Pro specifications: Wireless module – ESP32-WROVER 802.11 b/g/n WiFi + Bluetooth 4.1 LE module with 4MB Flash, 4MB PSRAM Storage – micro SD card slot supporting SPI mode Display I/F – TFT display connector USB – 1x micro USB port for programming and power Expansion 2x 16-pin headers with GPIOs, SPI, I2C, UART, ADC, DAC, […]

June 12, 2018June 12, 2018

Add a 3.5″ Hard Drive to Your Raspberry Pi with Suptronics X830 Add-on Board

If you ever plan to make your own NAS with an Arm Linux board, the Raspberry Pi board should not be your first choice, as regular readers will already know they are already cheaper and/or better solutions such as NanoPi NEO2 NAS Kit, ODROID HC2, or Popcorn Transformer to name a few. But if you already own one of the Raspberry Pi boards and a 3.5″ hard drive, you considering going with Suptronics X830 add-on boards – also sold under Geekworm brand – instead of a DC powered USB enclosure since it avoids extra cabling and the use of two power supplies. SupTronics X830 board features: SATA connector for 3.5″ SATA drive up to 10TB implemented via USB 3.1 Gen1 to SATA 6Gb/s bridge controller USB 3.0 port to connect to Raspberry Pi board Power Supply Input – 14 to 40V DC input via 5.5/2.5mm power barrel jack (Powers the […]

June 9, 2018June 9, 2018

Close Up Photos of UDOO Bolt Ryzen Embedded V1000 Development Board

The first AMD Ryzen Embedded V1000 development board – UDOO Bolt – was launched on Kickstarter last week, but for whatever reasons, the company did not provide close up photos of the board. But luckily for us, TLS – regular reader & commenter, and occasional contributor for CNX Software – is now at Computex 2018 and spent some time at UDOO’s booth where he took time to take some photos and share with us. The top view of the board shows the two SO-DIMM slots and Ryzen Embedded processor, as well as an better looks at the ports and headers around the boards. The board should support up to 4 displays via its two HDMI 2.0a ports, and two USB type C ports with DP alternate mode. While, AMD Ryzen Embedded V1000 SoCs support 10 GbE, UDOO selected TRXCOM TRJG19901DNL Gigabit Ethernet jack, probably to keep costs under control. The bottom […]

Rockchip RK3568, RK3588 and Intel x86 SBCs and SoMs in 2025

May 22, 2018May 22, 2018

Circumference Datacentre-in-a-Box Features up to 32 Raspberry Pi 3 B+ Managed by a UDOO x86 Ultra Board (Crowdfunding)

We’ve previously seen several clusters made of Raspberry Pi boards with a 16 RPi Zero cluster prototype, or BitScope Blade with 40 Raspberry Pi boards. The latter now even offers solutions for up to 1,000 nodes in a 42U rack. Circumference offers an other option with either 8 or 32 Raspberry Pi 3 (B+) boards managed by UDOO x86 board acting as a dedicated front-end processor (FEP) that’s designed as a “Datacenter-in-a-Box”. Key features and specifications: Compute nodes – 8x or 32x Raspberry Pi 3 B+ boards for a total of 128x 64-bit 1.4 GHz cores max Backplane MCU – Microchip ATmega1280 8-bit AVR microcontroller Serial Comms – FTDI FT4232 quad-USB UART Switched Mode Power Supply Units (SMPSUs): 8x / 32x software controlled (one per compute node) 1x / 4x always-on (microcontroller) HW monitoring: 8x / 32x compute node energy 2x / 8x supply voltage 2x / 8x temperature Remote […]

May 19, 2018May 19, 2018

Arduino Unveils its First FPGA Board with MKR Vidor 4000, Updates UNO WiFi Board with ATmega4809 MCU

Arduino has been busy with new boards announcements in the last week, as after introducing MKR WiFi 1010 and MKR NB 1500 IoT boards with respectively WiFi + Bluetooth, and NB-IoT + eMTC connectivity, the company has now unveiled two new boards. MKR Vidor 4000 is the very first official Arduino board with an FPGA, while UNO WiFi Rev2 is an upgrade of UNO WiFi board featuring the new Microchip ATmega4809 MCU and an U-blox wireless module instead of an ESP8266 chip. MKR Vidor 4000 Preliminary specifications: FPGA part FPGA – Intel Cyclone FPGA with 16K Logic Elements, 504Kbit of embedded RAM and 56 18×18 bit HW multipliers for high-speed DSP System Memory – 8 MB SDRAM Storage – 2 MB QSPI Flash (1MB for user applications) Micro HDMI connector MIPI camera connector mini PCIe connector with up to 25 user programmable pins MCU – Microchip SAMD21 Cortex-M0+ 32bit low […]