App note from FTDI/Bridgetek demonstrating LED control over Ethernet. Link here (PDF) In an increasingly connected world, more and more devices are going online. To enable online connectivity typically requires an MCU with Ethernet or Wi-Fi capabilities. To demonstrate the principle, this Application Note describes an implementation of a web server which allows for control […]
Boris Landoni from Open Electronics writes about a new open source project Ethernet Relay board: The project we are introducing in this article wants on to take on that task by creating, through dedicated connections, the possibility to remotely control your entrance gate, your fish tank, the garden lights, the watering system and so on, […]
Ken Shirriff documented his experience building a gateway using the BeagleBone single-board computer to communicate with the Alto’s Ethernet we covered previously: I decided to build a gateway that would allow the Alto to communicate with a modern system. The gateway would communicate with the Alto using its obsolete 3Mb/s Ethernet, but could also communicate with […]
Martin Melchior has been experimenting with switch-selectable configurations for a TP-Link TL-WR703n router. The setup allows for quick changes in configuration dictated by changes in location or circumstances. It allows the router’s use as a Ethernet to WiFi bridge (Access point), since it’s handy to have your own WiFi at a friend’s house or hotel; […]
Luca Dentella has informed us of his latest project using an ethernet shield based on the ENC28j60 driver from Microchip. SDWebServer is a complete webserver that can retrieve static elements from an SD card (including a user-defined default webpage) and can also create dynamic pages. This is the latest post in my tutorial about using […]
Mark McKillen shared his EthNode – ATMega based Ethernet board in the forum: Taking inspiration from the good folks at Nanode and an Instructable I saw recently, I’ve come up with “another” AVR based Ethernet board that can be programmed and used like an Arduino. It’s a simple design based on the ATMega and Microchip’s ENC28J60 […]
Here is an app note from Microchip describing the basics of Ethernet. It is intended as a reference for people developing Ethernet applications on PIC microcontrollers. Seeing as it’s theoretical, most of the article can be applied to other microcontrollers as well. This document specifies the theory and operation of the Ethernet technology found in […]
XPG is developing an IPv6 stack for the MSP430 microcontrollers using the ENC28J60 Ethernet IC for MAC/PHY. He demonstrates his proof-of-concept by having the MSP430 send HTTP requests to a custom PHP server at a push of a button, as seen in the video above. Now, as the 2553 only has 512 bytes of RAM […]
Today we added two relatively hard-to-solder parts to our library. Both come in QFN lead-less packages. First is the Texas Instrument’s TPS6120x DC/DC converter (pictured above) with an integrated switch. The second is the Micrel KSZ8851SN embedded Ethernet controller (pictured below).
Kmmankad designed and built an Ethernet adapter for his EzPSoC3 Cypress PSoC3 development board. It features the Ethernet to serial IC ENC28J60 and an open source stack he has written, that is available at github. Via the forum.
Jobytaffey is designing an Ethernet to radio bridge. This prototype uses an ENC28J60 for ethernet, and an XRF radio module. The XRF module is a UART-controlled 863.8 MHz transceiver with 250 Kbps transfer rates. Via Flickr.
The HanRun HR911105A RJ45 ethernet connector used by the Web Platform and Linux development board is cheap in China, but hard to find at your local distributor. Nexus found them at ITead for $3 a piece. Via the contact form.
Microchip jumped into open source last spring with the chipKIT Arduino-compatible development boards and open compiler/IDE. They wanted to tap the existing tutorials, enthusiasm, and customer base of Arduino community, and they were going to play nice with open source. A review of the chipKIT situation today is disappointing. The compiler still replies on closed […]
firestorm_v1 from yourwarrantyisvoid has published this detailed tutorial on building and using a passive ethernet tap. His goal in this project is to facilitate network monitoring for intrusion detection purposes, and wanted hardware which will allow the monitoring for traffic without degrading performance.
tempmj built a passive ethernet tap for monitoring and debugging network connections: I basically took 4 Panduit brand modular ethernet jacks and wired between two of them normally, other than the fact that the TX pairs from “Side A” looped through an extra jack and the TX pairs from “Side B” looped through the remaining […]
Ladyada has posted this detailed tutorial over at Adafruit on using Ethernet and SD card with Arduino. It describes how to use the Arduino to browse files on an SD card remotely. This tutorial is targeted at those who already have quite a bit of Arduino or microcontroller experience and are ‘fluent’ in C/C++/Java!
We’re releasing a stalled or abandoned prototype every few days while Seeed Studio is on break. We put a lot of work into these projects, but they’re still missing major components and testing. If an abandoned project sparks your interest, we may have PCBs to get you started. The goal of this project is to […]
We’re releasing a stalled or abandoned prototype every few days while Seeed Studio is on break. We put a lot of work into these projects, but they’re still missing major components and testing. If an abandoned project sparks your interest, we may have PCBs to get you started. The goal of this project was to […]
Here’s a new project we’d like to develop openly, like the recent logic analyzer board . This rough sketch shows a 48 channel LED controller with an ethernet interface. Our primary goals are: 48 channels of 10bit PWM LED control Ethernet interface Up to 120mA of LEDs per channel The networked LED controller would use […]