e information here, including source code to use the displays.C language is used, so it should be very easy to adapt to Arduino.It is a synchronous serial transfer.These displays make circuits much easier and faster to build, as well smaller and cheaper.Starting at $3.98 for 3 digits!More info here: <a href="http://pic.hitechworld.org/serial_led.htmlIf">http://pic.hitechworld.org/serial_led.htmlIf</a> requested, I have a micro Arduino here, and could adap