Those of you looking for a very text messaging system that's low cost, easy to create and fun to experiment with will enjoy a new service we came across last week by the name of C0ldwater. This is a messaging service that can be used to send simple text messages between users with Arduino-based hardware. Each "terminal" requires an Ethernet-enabled Arduino with an LCD and PS/2 keyboard attached for data entry.
Futhermore there is also software available to communicate with the devices using a Windows or Linux-based computer. Although C0ldwater is still in an experimental state, it appears to work well as demonstrated in the following video:
Certainly an interesting project, and worth a try if you have the hardware. To learn more, click here to visit the C0ldfire website. And for more, we're on twitter and Google+, so follow us for news and product updates as well.
When putting together your next Internet-enabled Arduino project - save time, space and money with the Freetronics EtherTen. Apart from being fully Arduino Uno-compatible, it has onboard Ethernet, microSD socket, full USB interface (so you don't need a costly FTDI cable just to upload a sketch!) and supports optional Power-over-Ethernet.