How would I go about sending commands? I want to send a command which will turn on the led in pin 13.
Many thanks,
Jordan
How would I go about sending commands?
The Arduino IDE has a build in serial monitor you can use to send data characters to the Arduino via the USB serial connection. You can also send characters to an Arduino with any PC serial terminal program. Also if you can write programs on your PC in any language that can access the serial ports that also can be used.
In all those cases you must first write a arduino sketch for you board to utlilize the serial commands and must work out a protocol of what characters are expected, how many, and what action to take.
Here is a link to lots of ways to communicate with an Arduino via serial communications:
http://www.arduino.cc/playground/Main/InterfacingWithSoftware
Lefty