ethernet News - Page 3 of 26 - CNX Software

August 20, 2025August 20, 2025 by Debashis Das - 3 Comments

Waveshare ESP32-P4-ETH development board supports Ethernet and PoE

Waveshare ESP32 P4 ETH Edge AI dev baord with ESP32 P4 and Ethernet

Waveshare ESP32-P4-ETH is a compact ESP32-P4 development board with Ethernet and PoE support, which looks very similar to the Olimex ESP32-P4-DevKit minus the pUEXT connector. However, we’ve also covered other ESP32-P4 boards with Ethernet (and other features) such as the ESP32-P4-Module-DEV-KIT, the ESP32-P4-NANO board, and the GUITION JC-ESP32P4-M3-DEV. Design wise, the board also looks very similar to the Wiznet boards based on Raspberry Pi RP2xxx microcontroller such as the W55RP20-EVB-Pico, the W6300-EVB-Pico2, and the W5100S-EVB-Pico2 boards, but you can also run multimedia workloads with MIPI camera and display interfaces, hardware video encoding, audio processing, AI speech functions, and advanced security features on the ESP32-P4-ETH board. Waveshare ESP32-P4-ETH specifications: SoC – Espressif Systems ESP32-P4 CPU Dual-core 32-bit RISC-V HP (High-performance) CPU @ up to 400 MHz with AI instructions extension and single-precision FPU Single-RISC-V LP (Low-power) MCU core @ up to 40 MHz Memory 768 KB HP L2MEM (for dual-core CPU), 32 […]

August 19, 2025August 20, 2025 by Debashis Das - 4 Comments

ESP32 Modbus gateway handles RTU, TCP/IP, and MQTT for industrial IoT

Designed by Namnam in Vietnam, the ESP32 Modbus gateway is built to communicate with PLCs and industrial sensors over Modbus RTU (RS-485) or Modbus TCP/IP (Ethernet/Wi-Fi). Designed for use in farms, factories, and electrical cabinets where reliable communication, remote monitoring, and control are required. Key features of this industrial IoT board include Modbus RTU/TCP master and slave support, automatic Wi-Fi/Ethernet switching, multi-Wi-Fi handling, watchdog timer, deep sleep, and FOTA updates via FTP. The board supports a wide input voltage range and can be programmed over USB. ESP32 Modbus gateway specifications Wireless Module – ESP32-WROOM-32 module with ESP32 dual-core processor @ 160 MHz, 520 Kbytes SRAM, 4 Mbit Flash Connectivity 10/100Mbps Ethernet RJ45 port via LAN8720A controller Wifi and WiFi 802.11 b/g/n, Bluetooth 4.2 via ESP32 RS485 – SP485EE transceiver (Serial2, auto DERE) USB – USB Type-C port for programming and power Misc Onboard Red, Blue, and Pwr LED User and […]

July 18, 2025 by Debashis Das - 2 Comments

$14 development board features GUITION ESP32-P4 + ESP32-C6 module

JC ESP32P4 M3 DEV ESP32 P4 evolution board

While searching Aliexpress for new products, I found out about the JC-ESP32P4-M3-DEV from the Maker Go AliExpress store, another ESP32-P4 development board with features very similar to the ESP32-P4-Function-EV-Board or the Wireless Tag WT99P4C5-S1 board, but built around the GUITION JC-ESP32P4-M3-C6 module, which combines ESP32-P4 and ESP32-C6 into a single package instead of having separate chips or modules on most other designs. Features include 32MB of PSRAM and 16MB of flash on the GUITION module, a microSD card slot for storage, a built-in microphone, speaker output via the ES8311 audio codec, and an audio amplifier. The board also offers a 10/100Mbps Ethernet RJ45 port, an RS-485 terminal block, a GPIO header, and expansion connectors for both the ESP32-P4 and ESP32-C6 chips. Additionally, there are three USB ports: two USB-C and one USB-A for power, data, and debugging, along with a few buttons and LEDs. JC-ESP32P4-M3-DEV evolution board specifications: Core module […]

July 15, 2025July 14, 2025 by Jean-Luc Aufranc (CNXSoft) - 5 Comments

Radxa E24C and E54C Rockchip RK3528A/RK3582 network computers features four Gigabit Ethernet ports

Radxa E24C and E54C are mini routers and embedded boxes based on, respectively, Rockchip RK3528A and RK3582 SoCs, and equipped with four Gigabit Ethernet ports, HDMI video output, three USB ports, and an M.2 PCIe socket for NVMe SSD storage. The Radxa E24C builds upon the dual Gigabit Ethernet Raxda E20C mini network Titan, while the Radxa E54C is an “update” to the Radxa E52C mini router with four Gigabit Ethernet ports instead of two 2.5GbE ports. Radxa E24C quad GbE mini router Radxa E24C specifications: SoC – Rockchip RK3528A CPU – Quad-core Arm Cortex-A53 @ 2.0 GHz GPU – Arm Mali-G450 GPU with support for OpenGL ES1.1, ES2.0, and OpenVG 1.1 APIs VPU H.264, H.265, and AVS2 decoder up to 4Kp60 H.264 and H.265 encoder up to 1080p60 Memory – 1GB, 2GB, or 4GB LPDDR4 Storage 8GB, 16GB, or 32GB eMMC 5.1 flash MicroSD card slot (UHS-I) M.2 2280 Key-M […]

July 14, 2025July 14, 2025 by Debashis Das - 4 Comments

Industrial IoT board based on NuMicro M467 Ethernet MCU follows Arduino UNO R4 form factor

Nuvoton NuMaker UNO M4 Cortex M4 industrial dev board

The NuMaker-UNO-M4 is an industrial-grade IoT development board powered by a Nuvoton NuMicro M467 series Arm Cortex-M4F Ethernet MCU and following the Arduino UNO R4 form factor. The board also comes with Ethernet, RS485, CAN FD, and a microSD card slot for data logging. Power options include 5V via USB Type-C, 5–5.5V through a DC jack, and external 3.3V/5V through headers. It also features Arduino-compatible headers, push buttons, status LEDs, and a dedicated high-speed USB for power and programming. Nuvoton NuMaker-UNO-M4 Specifications SoC –Nuvoton NuMicro M467SJHAN CPU – Arm Cortex-M4 @ up to 192 MHz, with FPU and DSP Memory – Up to 512 KB SRAM with 64 KB parity check Storage Up to 1024 KB Flash with dual-bank, FOTA, and XOM support 8 KB LDROM, 3 KB OTP ROM Storage – MicroSD card slot Connectivity – 4-pin 10/100 Mbps Ethernet connector via RealTek RTL8201FI PHY USB – USB Type-C port […]

July 13, 2025September 21, 2025 by Jean-Luc Aufranc (CNXSoft) - 13 Comments

Review of GL.iNet Comet (GL-RM1) KVM-over-IP solution and ATX power control board

GL-RM1 Comet KVM review ATX power control board

GL.iNet sent me a Comet (GL-RM1) remote KVM box for review, along with a GL-ATXPC ATX Power Control Board. I’ll start this review with an unboxing and a teardown, then I’ll use the GL.iNet Comet with a Raspberry Pi 4 SBC to control it from a web browser in the LAN and the GLKVM app from the Internet. Finally, I’ll connect the GL-ATXPC and GL-RM1 to an Orion O6 mini-ITX motherboard to test ATX power control. GL.iNet Comet (GL-RM1) unboxing I received a parcel with two retail boxes: one for the GL-ATXPC ATX power control board and the other for the GL-RM1 Comet Remote KVM. The GL-RM1 ships with an HDMI cable, an Ethernet cable, a USB-A to USB-C cable for keyboard/mouse emulation, and a USB-C to USB-C cable for power, as well as a card with a QR code to connect with GL.iNet, and a getting started guide in […]

June 25, 2025June 25, 2025 by Debashis Das - 3 Comments

ESP32-Stick-PoE-A-Cam – An ESP32-S3 camera board with active PoE, machine learning examples

Esp32 Stick PoE A Cam(N16R8) ESP32 s3 camera PoE board

The ESP32-Stick-PoE-A-Cam(N16R8) is an open-source ESP32-S3 development board with Ethernet, camera, and active PoE support designed for machine learning applications. Compared to similar boards like M5Stack M5PoECAM-W V1.1 and the Waveshare ESP32-S3-ETH, this board features 17 usable GPIO, active PoE (IEEE 802.3af) with 700mA power delivered, built-in USB-UART, and pin-to-pin compatibility across Stick-Cam boards. Built around the ESP32-S3 SoC, this module supports OV2640 and OV5640 cameras and integrates the W5500 Ethernet controller and Si3404-A PoE chip for power and connectivity. The board has a total of 36 GPIOs, of which 17 are free when using Ethernet and a camera. Applications include remote surveillance, smart home automation, edge AI processing, and other IoT applications. ESP32-Stick-PoE-A-Cam(N16R8) specifications: Wireless module ESP32-S3R8 MCU – ESP32-S3 dual-core LX7 microprocessor @ up to 240 MHz with Vector extension for machine learning Memory – 8MB PSRAM Storage – 16MB SPI flash Connectivity – WiFi 4 and Bluetooth 5 with […]

June 25, 2025June 25, 2025 by Debashis Das - 2 Comments

XIAO W5500 Ethernet Adapter: PoE-enabled ESP32-S3 device aims to improve network reliability

Seeed Studio has recently announced the XIAO W5500 Ethernet Adapter with Power over Ethernet (PoE) support and built around the XIAO ESP32S3 Plus WiFi and Bluetooth module, and a WIZnet W5500 10/100 Mbps Ethernet SPI controller. PoE is implemented through an MQ7813T120 module and a 5V regulator with a TPS563201 buck converter. The XIAO W5500 also features an external 2.4GHz antenna for WiFi and BLE, a reset button, status LEDs, and a USB-C port for power and programming, all enclosed in a 3D printed case. XIAO W5500 Ethernet Adapter specifications: Main Module – XIAO ESP32-S3 Plus module Networking Wireless – External 2.4GHz antenna (2.81dBi) for WiFi and BLE Ethernet W5500 Ethernet controller 10/100 Mbps Ethernet with RJ45 connector Integrated isolated PoE module for data + power USB – USB Type-C connector for power and programming Misc Power and User LED Reset buttons Power MQ7813T120 PoE module with isolation (IEEE 802.3af-compliant); 86% […]