development board

Posted on by Jean-Luc Aufranc (CNXSoft) - 14 Comments on Olimex RVPC is a one Euro RISC-V computer kit with VGA and PS/2 connectors

Olimex RVPC is a one Euro RISC-V computer kit with VGA and PS/2 connectors

One Euro RISC-V computer

Olimex RVPC is one Euro RISC-V computer powered by a WCH CH32V003 RISC-V microcontroller and equipped with a VGA port for video output and a PS/2 connector to connect a keyboard. You won’t be able to do much with this device as an end-user, but it does not matter since the RVPC open-source hardware board mostly targets the education market and is offered as a kit to be soldered to lower the selling price and to serve as a soldering learning kit. Olimex RVPC specifications: MCU – WCH CH32V003 32-bit RISC-V2A microcontroller up to 48 MHz with 2KB SRAM, 16KB flash (SOP8 package with 6x GPIOs) Video Output – VGA connector (3x GPIO used for Vsync, HSync, and RGB) Keyboard port – PS/2 connector (2x GPIO used) Programmer port – 2-pin header for CH32V003 programming through a board such as ESP32-S2-DevKit-LiPo-USB Misc – Buzzer (1x GPIO) and Red power LED […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 39 Comments on OpenWrt One WiFi 6 router with Filogic 820 SoC launched for $89

OpenWrt One WiFi 6 router with Filogic 820 SoC launched for $89

OpenWrt One Router

The “OpenWrt One/AP-24.XY” is a Filogic 820-based WiFi 6 router board manufactured by Banana Pi whose software is directly managed by OpenWrt developers with assistance from MediaTek. The router was first announced in January 2024, and developer samples became available sometime in April with some early units auctioned away at the OpenWrt Summit which took place in Cyprus on May 18-19. The good news is that the OpenWrt One is now available to anyone on Aliexpress for $89 including a metal enclosure, a PoE module, three antennas, and a power supply. Here’s a reminder of the OpenWrt One router specifications: SoC – MediaTek MT7981B (Filogic 820) dual-core Cortex-A53 processor @ 1.3 GHz System Memory – 1GB DDR4 Storage 128 MB SPI NAND flash for U-boot and Linux 4 MB SPI NOR flash for write-protected (by default) recovery bootloader (reflashing can be enabled with a jumper) Two types of flash devices […]

Posted on by Sayantan Nandy - 12 Comments on MYiR Tech MYC-LD25X – A compact STM32MP25 system-on-module running Debian 12

MYiR Tech MYC-LD25X – A compact STM32MP25 system-on-module running Debian 12

MYD LD25X development board

MYiR Tech’s MYC-LD25X is a compact 39x37mm system-on-module built around the STMicro STM32MP25 dual-core Cortex-A35 SoC running at 1.5GHz with a Cortex-M33 core, and an NPU capable of 1.35 TOPS. The module comes with up to 2GB LPDDR4 RAM, 8GB eMMC storage, and a range of connectivity options, including Gigabit Ethernet, USB, CAN FD, UART, and SPI. Designed for industrial HMI, edge computing, energy systems, and automation, the MYC-LD25X is suitable for high-performance applications in these fields. Previously, we covered other development boards from MYiR, including the MYD-J7A100T, MYD-YG2UL, MYD-YG2LX, and MYD-J1028X. We also wrote about other STM32MP25-based system-in-package and system-on-module namely the Digi ConnectCore MP25 and Octavo OSD32MP2. Feel free to check them out if you’re interested. MYC-LD25X STM32MP25-based System-On-Module MYC-LD25X specifications: SoC – STMicro STM32MP257D processor CPU – Dual-core Arm Cortex-A35 64-bit RISC core operating at up to 1.5 GHz MPU – 32-bit Arm Cortex-M33 RISC core clocked at […]

Posted on by Debashis Das - No Comments on Portwell PEB-2274 3.5-inch fanless Intel Atom x6425E SBC offers triple display support, dual GbE, three M.2 sockets, and more

Portwell PEB-2274 3.5-inch fanless Intel Atom x6425E SBC offers triple display support, dual GbE, three M.2 sockets, and more

PEB 2274 3.5 Inch Elkhart Lake SBC

Portwell has recently launched PEB-2274, a 3.5-inch fanless SBC built around Intel Atom x6425E Elkhart Lake SoC. Key features include up to 32GB DDR4 memory, two Gigabit Ethernet ports, three M.2 sockets for storage and expansion, and a wide 9V to 36V DC power input. Additionally, it has various display interfaces (HDMI, DP, LVDS), multiple serial ports, USB, and audio options. We have already covered several other 3.5-inch inch Elkhart Lake SBCs with dual Ethernet ports including the Avalue ECM-EHL 3.5-inch SBC, Congatec Conga-PA7 Pico-ITX board, the iBase IB836 3.5-inch SBC, and the AAEON GENE-EHL5 SBC. All these boards support dual Ethernet and some of them have support for triple ethernet ports. But what’s unique about the PEB-2274 is that it has dual GbE ethernet, triple display, and a design specifically for industrial applications. Portwell PEB-2274 specifications: SoC – Intel Atom x6425E quad-core processor @ 2.00 GHz / 3.00 GHz […]

Posted on by Debashis Das - No Comments on Adafruit Feather RP2350 board with HSTX port enables video output and display interfaces

Adafruit Feather RP2350 board with HSTX port enables video output and display interfaces

Adafruit Feather RP2350 with HSTX Port

“Adafruit Feather RP2350 with HSTX port” is a Raspberry Pi RP2350 MCU development board that features an onboard 22-pin high-speed serial transmit interface (HSTX) port. The board also features a built-in 200mA+ LiPo charger, an RGB LED, a STEMMA QT connector, and a USB Type-C port for power and programming. The board is compatible with FeatherWings and supports development with various programming languages. These features make this board suitable for a wide range of applications, from embedded projects and IoT devices to educational purposes and prototyping. Previously we have covered a variety of RP2350-powered development boards, including the MOTION 2350 Pro, designed for robotics and motor control; the Solder Party’s RP2350 Stamp, ideal for space-constrained applications; and the WIZnet Raspberry Pi RP2350 boards designed for IoT and internet-connected applications. Feel free to check those out if you want to take a look at some of the unique development boards. Adafruit […]

Posted on by Sayantan Nandy - No Comments on $15 Makerdiary iMX RT1011 Nano Kit runs Zephyr RTOS on 500 MHz NXP iMX RT1011 crossover MCU

$15 Makerdiary iMX RT1011 Nano Kit runs Zephyr RTOS on 500 MHz NXP iMX RT1011 crossover MCU

iMX RT1011 Nano kit

Makerdiary’s iMX RT1011 Nano Kit is a prototyping board featuring the NXP iMX RT1011 Cortex-M7 Crossover MCU running Zephyr RTOS. It offers 128 KB of on-chip RAM, configurable as TCM or general-purpose memory, and supports high-speed USB, UART, SPI, I2C, SAI, PWM, GPIO, and ADC, making it suitable for a variety of embedded applications. The board also includes a 128 Mbit external QSPI flash with XIP support, flexible power management, a programmable LED and Button, and a USB-C connector. It features a dual-row 40-pin layout (DIP/SMT) with up to 33 multi-function GPIO pins, 15 of which can be used as ADC inputs, along with a Serial Wire Debug (SWD) port. Optional pre-soldered headers are available for added flexibility. We previously covered other iMX RT1011-based development boards, such as the Olimex RT1010-Py running MicroPython and Adafruit Metro M7 with CircuitPython firmware. Be sure to check them out if you’re interested. Makerdiary’s […]

Posted on by Jean-Luc Aufranc (CNXSoft) - No Comments on STMicro STM32C071 Arm Cortex-M0+ MCU adds USB FS interface, targets inexpensive GUI implementations

STMicro STM32C071 Arm Cortex-M0+ MCU adds USB FS interface, targets inexpensive GUI implementations

STM32C071 development board graphical user interface

STMicro has just announced the availability of the STM32C071 Arm Cortex-M0+ microcontroller part of the STM32C0 series with 128 KB of flash and 24 KB of RAM suitable for driving a small 320 x 240 display using an SPI interface and building affordable graphical user interfaces (GUI) for appliances. The microcontroller also adds a crystal-less USB FS device interface, additional SPI and I2C interfaces, and extra GPIOs (up to 61) all of which are 5V tolerant. For evaluation and quickly get started with firmware development, STMicro also offers the NUCLEO-C071RB development board and X-NUCLEO-GFX01M2 display expansion board. STM32C071 low-cost Cortex-M0+ MCU for GUI in appliances STM32C071 specifications: MCU Core -Arm 32-bit Cortex-M0+ CPU @ up to 48 MHz Memory – Up to 24KB SRAM with HW parity check Storage – Up to 128KB flash with protection and securable area Peripheral interfaces Up to 61x fast I/Os, all 5V tolerant 5-channel […]

Posted on by Tomisin Olujinmi - 8 Comments on Zerowriter Ink is an open-source, ESP32-S3-based e-paper word processor (Crowdfunding)

Zerowriter Ink is an open-source, ESP32-S3-based e-paper word processor (Crowdfunding)

Zerowriter Ink e-paper word processor

Zerowriter Ink is an e-paper word processor for writers interested in an open-source, distraction-free writing tool built around the ESP32-S3 wireless microcontroller. It features a customizable, mechanical keyboard with low-profile Kailh Choc switches and a second-edition Inkplate 5 e-paper display from Soldered Electronics. The Zerowriter Ink is a compact, dedicated writing tool that can be tossed in a backpack and taken on the road. It is designed as an open-source, customizable alternative to other portable word processors like the Alphasmart Neo and the Pomera DM30. It builds on the first ZeroWriter project but comes fully assembled. The keyboard is hot-swappable, with a US-English layout and printed legends. The onboard Inkplate 5 e-paper display is powered by an ESP32-S3 microcontroller with support for Wi-Fi 4 and BLE 4. It also comes with a 5,000mAh LiPo battery that can last for several weeks of daily use or a month of standby on […]

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