Let's Make Robots! | RobotShop
    I'll detail here a simple implementation of a EIA485 bus with PICAXE RS485 : 3 wire bus (half duplex), upto 1200m (400ft) @ 200kbps ,  50 m @ … Read more
Price: $25 USD
An other cool component from web4robot http://www.web4robot.com/SerialLCD.html   see it in action : http://www.youtube.com/watch?v=5JkdyQWzqT4   Read more
I've found this multifunction chip on ebay,  the official webpage is http://www.web4robot.com/ I've just bought a pair, I'll come back to post with my … Read more