CNX Software - Embedded Systems News

April 15, 2025April 15, 2025 by Jean-Luc Aufranc (CNXSoft) - 4 Comments

Xero MCU is a compact USB-C board based on STM32F411 microcontroller (Crowdfunding)

Xero MCU is a small STMicro STM32F411 Arm Cortex-M4F microcontroller board with a USB-C port, twenty through and castellated holes for GPIOs, a Debug connector, Reset and Boot buttons, and a few LEDs. The 100 MHz MCU embeds 512KB flash and 128KB SRAM, and the board is said to be designed for hobbyists, students, and professionals. For reference, the Xero MCU board features the same STM32F411CEU6 microcontroller found in the Black Bill board. However, it’s quite shorter at about half the size, and features castellated edges, making it suitable for soldering on a baseboard. Xero MCU specifications: Microcontroller – STMicro STM32F411CEU6 Arm Cortex-M4F MCU @ 100MHz with 512KB Flash, 128KB SRAM USB – 1x USB Type-C port for power and programming Expansion – 2x 20-pin through and castelled holes with up to 17x GPIO, I2C, 2x SPI, 2x UART, 4x ADC, 5V, 3.3V, and GND Debugging – 4-pin debug connector […]

April 14, 2025April 14, 2025 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

W6300-EVB-Pico2 board combines RP2350 MCU with WIZnet W6300 QSPI Ethernet controller for 80+ Mbps data rate

W6300-EVB-PICO2 board with Raspberry Pi RP23500 and W6300 QSPI Ethernet controller

WIZnet W6300-EVB-Pico2 is a development board that combines a Raspberry Pi RP2350 MCU with the company’s new W6300 QSPI Ethernet controller capable of 80+ Mbps data rates. WIZNet has made several 10/100Mbps Ethernet controllers over the years that connect to microcontrollers via SPI, but the speed is often limited to 15 to 70 Mbps due to a low SPI clock frequency and small buffers. The WIZNet W6300 Ethernet controller can deliver higher speed thanks to a 150MHz system clock, a QSPI interface with four data lines, 64KB SRAM, and 4KB TX/RX buffer for each of the 8 sockets. W6300 QSPI Ethernet controller W6300 features and specifications: Host Interface – High-speed QSPI (MODE 0/3), system bus with 2 address signals & 8-bit data Internal 32KB SRAM for Tx/ Rx buffers (64KB in total) 8x independent sockets with 64KB Memory 10BaseT / 10BaseTe / 100BaseTX Ethernet PHY Integrated Auto negotiation (Full and […]

ArmSoM RK3588 AIModule7 NVIDIA Jetson Nano-compatible SOM

April 14, 2025 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

Allwinner T536 quad-core Arm Cortex-A55 & RISC-V industrial SoC supports ECC RAM, up to 3 TOP AI accelerator

Forlinx OK536-C Allwinner T536 development board

Allwinner T536 SoC features four Cortex-A55 cores, a 600 MHz RISC-V core, and a low-power RISC-V for power management, as well as support for ECC memory and an optional NPU with up to 3 TOPS of AI performance. The processor is designed to work in the industrial temperature range (-40 to +85°C) and offers plenty of I/Os, including two Gigabit Ethernet, a USB 3.1 DRD and PCIe Gen2 conbo, MIPI DSI, RGB, and LVDS display interfaces, paralle CSI and MIPI CSI camera interfaces, CAN FD, SPI, I2C, UART, several ADC, and more. The SoC is designed for interactive terminals, smart manufacturing, and other Edge AI industrial equipment. Allwinner T536 specifications: CPU cores Quad-core Arm Cortex-A55 @ up to 1.6GHz Single-core E907 RISC-V core @ up to 600 MHz Single-core E902 RISC-V MCU for low-power management GPU – G2D hardware accelerator with rotate, mixer, and scaler functions ISP Max resolution – […]

April 14, 2025 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

Pimoroni Presto – A Raspberry Pi RP2350-powered 4-inch wireless desktop touch display

Pimoroni Presto is a 4-inch desktop color touch display powered by a Raspberry Pi RP2350 microcontroller, and equipped with a Raspberry Pi RM2 wireless module for WiFi 4 and Bluetooth connectivity. The display comes with 16MB of SQPI flash and 8MB of PSRAM, seven RGB LEDs for ambient lighting, a microSD card slot, a piezo speaker, a Qwiic/STEMMA QT connector for expansion, a USB-C port for power and programming, and a 2-pin JST connector for an optional battery. Pimoroni Presto specifications: Microcontroller – Raspberry Pi RP2350B MCU CPU Dual-core Arm Cortex-M33 @150MHz with Arm Trustzone Dual-core 32-bit Hazard3 RISC-V @ 150MHz Up to two cores can be used at the same time Memory – 520KB SRAM Package – QFN-80; 10×10 mm Memory – 8MB PSRAM Storage 16MB QSPI flash MicroSD card slot Display – 4-inch square IPS LCD screen with 480 x 480 resolution, capacitive touchscreen Wireless – Raspberry Pi […]

April 13, 2025April 14, 2025 by Jean-Luc Aufranc (CNXSoft) - 8 Comments

Battery-powered Seeed Studio IoT Button features ESP32-C6 SoC, supports ESPHome or Zigbee firmware

Seeed Studio IoT Button is an inexpensive ESP32-C6 button powered by a rechargeable 18650 battery and designed to easily and quickly control Smart Home devices over WiFi 6 or Zigbee wireless protocol. It will be especially handy to Home Assistant users since the device is pre-flashed with ESPHome firmware for easy integration (over WiFi), and the company also provides a Zigbee firmware for Zigbee Home Assistant (ZHA) integration. The hardware is pretty basic with a button, three LEDs, and a USB-C port for charging the replaceable 18650 battery. Seeed Studio IoT Button specifications: SoC – ESP32-C6FH4 CPU Single-core 32-bit RISC-V clocked up to 160 MHz Low-power RISC-V core @ up to 20 MHz Memory – 512KB SRAM, 16KB low-power SRAM Storage – 320KB ROM, 4MB flash Wireless – 2.4 GHz WiFi 6, Bluetooth 5.0 LE/Mesh (somehow not used here), 802.15.4 radio for Zigbee 3.0 and Thread. Matter compatible. USB – […]

April 12, 2025April 12, 2025 by Jean-Luc Aufranc (CNXSoft) - 9 Comments

BPS is a GPS alternative working over ATSC 3.0 digital TV signals

Broadcast Positioning System (BPS) is an alternative to GPS designed for timing and positioning over ATSC 3.0 digital TV signals, and mainly designed as a backup solution for national security. GPS is critical in providing not only location data, but also timing data for critical infrastructure such as power grid, telecommunication networks, and so on. However, GPS signals can be spoofed, and/or satellites could potentially be damaged or even taken down. That’s where BPS comes in as an alternative with a much broader network of base stations, and both GPS and BPS signals can be compared, meaning it can be used to detect spoofing as well. It works by adding a preamble with timing data and a Data PLP (Physical Layer Pipe) with tower information and location. One tower is enough for timing data, and positioning will also be possible with four towers within range. Time accuracy is 100ns (95% […]

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

April 11, 2025April 12, 2025 by Debashis Das - 2 Comments

Topaz Tz170b FPGA devkit features hardened LPDDR4 controller, hardened MIPI D-PHY up to 2 Gbps per lane

The Topaz Tz170b FPGA devkit from Efinix is a compact FPGA evaluation platform built around the Efinix Tz170 FPGA. This FPGA is built around a low-power, high-density 16 nm Quantum fabric and comes in a compact 484-ball FineLine BGA package. The company mentions that the board supports hardware-level MIPI D-PHY with data rates of up to 2 Gbps per lane and hardware-level LPDDR4 memory controller, making it ideal for high-speed embedded systems, vision processing, and custom SoC designs. Additionally, it includes 256 Mbit of LPDDR4 memory, dual SPI NOR flash memories, and high-speed QSE connectors for Efinix or custom daughter cards. Expansion is further enabled by a low-pin-count FMC connector, a microSD slot, user LEDs, and push buttons. Clock options include 33.33, 50, and 74.25 MHz oscillators, and a full range of onboard regulated power sources for stable operations. These features make this device useful for applications like edge AI, […]

April 11, 2025April 11, 2025 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

Radxa Dual 2.5G Router HAT adds 2.5GbE networking and M.2 NVMe storage support to Raspberry Pi 5-compatible SBCs

The Radxa Dual 2.5G Router HAT is an expansion board adding 2.5GbE networking and an M.2 PCIe x1 socket for NVMe SSD storage to the Raspberry Pi 5 and compatible SBCs with a PCIe FFC connector. We had previously seen Raspberry Pi 5 HATs with 2.5GbE such as the Pineberry HatNET! 2.5G, or even one with 2.5GbE and NVMe SSD (52Pi W01 U2500 HAT), but the Radxa Dual 2.5G Router HAT is the first to implement two 2.5 Gbps Ethernet ports to enable routing, and also features an NVMe SSD as a bonus. Radxa Dual 2.5G Router HAT specifications: Supported SBCs – Raspberry Pi 5, Radxa ROCK 2F, Radxa ROCK 2A, Radxa ROCK 5C, the upcoming Radxa 4D (RK3576), and potentially others PCIe Switch – ASM2806 PCIe 3.0 switch chip with PCIe Gen3 x2 upstream and four PCIe 3.1 lanes downstream up to 8GT/s Storage – 1x M.2 M-Key socket […]