ethernet News - Page 4 of 26 - CNX Software

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% […]

June 9, 2025June 9, 2025 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

Arduino UNO SPE Shield adds Single Pair Ethernet and RS485 to Arduino boards

Arduino UNO SPE Shield adds Single Pair Ethernet (SPE) and RS485 to Arduino UNO and compatible boards, notably the Arduino UNO R4, via a Microchip LAN8651 SPE controller. Single Pair Ethernet relies on just two wires to carry data and power, allowing for much more compact designs and simpler wiring compared to traditional RJ45-based solutions with Cat 5 cables. It especially benefits IoT and IIoT applications for buildings, factories, and process automation. Arduino UNO SPE specifications: Networking – Single Pair Ethernet (SPE) via Microchip LAN8651B1 10BASE-T1S MAC-PHY Ethernet Controller with SPI Data rate: 10 Mbit/s over a single balanced pair T1SP and T1SN available on screw terminal block Dedicated T1S SPE connector Maximum Distance – Supports up to 25 meters in multidrop topology (multiple nodes on a single segment) Up to eight nodes in a multidrop network Serial – RS485 via MaxLinear XR33058 Half duplex RS485 Data rate: 20 Mbit/s […]

May 30, 2025May 30, 2025 by Debashis Das - No Comments

DFRobot Edge101 ESP32 industrial IoT controller offers isolated RS485 and CAN Bus interfaces

DFRobot Edge101 is an industrial-grade IoT controller built around the ESP32 MCU, designed as a bridge between development boards and industrial IoT systems. Housed in a full metal enclosure, it comes with various protection features including surge, ESD, lightning, overvoltage, and reverse polarity protection, and supports continuous 24/7 operation in harsh environments. It integrates RS-485, CAN bus, Ethernet, Wi-Fi, Bluetooth, and RTC, and supports expansion via a PCIe slot for 4G LTE cellular communication, making it suitable for automation, environmental monitoring, and remote data acquisition in industrial or outdoor settings. The IoT controller also offers flexible mounting options such as DIN rail or ear mounting. DFRobot Edge101 specifications: Wireless MCU – Espressif Systems ESP32 CPU – Dual-core Tensilica LX6 microcontroller @ up to 240 MHz Memory – 520 KB SRAM, 16 KB RTC SRAM Wireless – WiFi 4 and Bluetooth 4.2 Storage – 4MB SPI NOR flash, MicroSD card slot Connectivity […]

May 8, 2025May 8, 2025 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

HydraLink USB-to-Automotive Ethernet dongle works over a single twisted pair (Crowdfunding)

HydraLink is a compact USB-to-Automotive Ethernet dongle that supports 100BASE-T1 and 1000BASE-T1 standards over a single twisted pair (no large RJ45 connector needed) and provides a solution for diagnosing, testing, and prototyping automotive networks. The rationale behind HydraLink is that the automotive sector is undergoing a shift from CAN-based systems to advanced Automotive Ethernet networks like BroadR-Reach (802.3bw) that allow multiple in-vehicle systems to simultaneously access information over unshielded single twisted pair cables. So as I understand it, the HydraLink is the modern equivalent of OBD-II USB scanners relying on Ethernet instead. HydraLink specifications: Networking – 100 Mbps or 1000 Mbps automotive Ethernet via 2.54 mm pin header (Note: the board below features a Broadcom BCM89811 BroadR-Reach automotive Ethernet RGMII transceiver limited to 100BASE-T1 data rate) USB – USB 3.0 Gen 1 Type-C port Misc – Link activity and link speed LED indicators Power Supply – 5V via USB interface […]

April 20, 2025April 20, 2025 by Jean-Luc Aufranc (CNXSoft) - 5 Comments

ESP-HDMI-Bridge is an ESP32-P4 HDMI streaming adapter with USB, Ethernet, WiFi, and microSD card

ESP-HDMI-Bridge is an ESP32-P4-based HDMI streaming adapter based on Lontium Semiconductors’s LT8912B MIPI-DSI to HDMI bridge chip outputting MIPI-DSI video signal of ESP32-P4 to HDMI devices. It allows the user to connect a computer to an HDMI display or projector through USB, Ethernet, or WiFi, or use it directly as a digital signage player or live dashboard connected to an HDMI display. The current solution is based on the ESP32-P4-Function-EV-Board connected via its MIPI DSI connector to a 50x40mm board with the LT8912B bridge, a MIPI DSI input connector, LVDS and HDMI video outputs, and a 12-pin header with I2C, I2S audio, etc., with everything housed in a plastic enclosure. The best is to watch the video below, which shows various demos: USB to HDMI up to 720p30 or 1080p15 Ethernet to HDMI WiFi to HDMI up to 1080p40 using the ESP32-C6 2.4 GHz WiFi 6 module on the ESP-P4 […]

April 15, 2025April 15, 2025 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

Cervoz M.2 SFP Ethernet expansion modules support long cables (up to several kilometers) for robotics

Cervoz M.2 MEC-LAN-2001-SFP and MEC-LAN-2002-SFP are M.2 SFP Ethernet expansion modules delivering gigabit Ethernet speed over long distances for robotics using an Intel i210-IS controller compliant with IEEE 802.3x and 802.3z standards. Small Form-factor Pluggable (SFP/SFP+) cages are usually associated with high-speed Ethernet connections of over 10 Gbps, but another advantage of SFP cages over RJ45 jacks is that they allow for data transmission over several kilometers, while RJ45 Ethernet is typically limited to about 100 meters. The Cervoz M.2 SFP Ethernet expansion modules would allow laying out long cables in logistics centers, smart factories, transportation hubs, and energy management facilities where Autonomous Mobile Robots (AMRs) operate across long distances. Cervoz M.2 MEC-LAN-2001-SFP and MEC-LAN-2002-SFP specifications: Ethernet 1x or 2x Gigabit Ethernet connectors via Intel i210-IS controller(s) Support Wake-on-LAN and Hot-Swap function 1x or 2x SFP cages via MEC daughter board Host interface – M.2 B+M Key edge connector with […]