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Archive for the ‘TCP/IP’ Category

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16

MicroModem, For Data Transmission Explorations

afsk, APRS, arduino hacks, modem, serial, TCP/IP, wireless, wireless hacks Commenti disabilitati su MicroModem, For Data Transmission Explorations 

modemThem kids with those Arduinos don’t know what they’re missing. A serial connection is just too easy, and there’s so much fun to be had with low bandwidth modems. [Mark] made the MicroModem with this in mind. It’s a 1200 baud AFSK modem, capable of APRS, TCP/IP over SLIP, mesh network experimentations, and even long-range radio communication.

As the MicroModem is designed to be an introduction to digital wireless communication, it’s an extremely simple build using only 17 components on a board compatible with the Microduino. The software is built around something called MinimalProtocol1, a protocol that will be received by all other listening stations, features error correction, and automatic data compression. There’s also the ability to send TCP/IP over the link, which allowed [Mark] to load up our retro site at a blistering 1200 bps.

The code is extremely well documented, as seen on the Github for this project, with board files and even breadboard layouts included. [Mark] has three PCBs of his prototype left over, and he’s willing to give those out to other Hackaday readers who would like to give his modem a shot.


Filed under: Arduino Hacks, wireless hacks
Feb
11

A new Wi-Fi Shield to connect your Arduino to the Internet

arduino, internet, TCP/IP, Wi-Fi, Yun Commenti disabilitati su A new Wi-Fi Shield to connect your Arduino to the Internet 

WifiShield2-500x378

Boris Landoni @ open-electronics.org writes:

Since now on, it will be easy to provide your Arduino with Internet connectivity by using this shield. The shield sports a TCP/IP stack manager, in order to free up the Arduino from some basic tasks. It’s also essential to equip the board with a library, that communicates with the TCP/IP manager and makes it easier to program the Arduino and to let it communicate with other computers via the Internet.

Despite the proliferation of hardware to connect Arduino with the web, and especially despite YUN, we considered useful to design and propose a new WiFi shield for Arduino, which replaces the one already presented.

A new Wi-Fi Shield to connect your Arduino to the Internet - [Link]



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