The following Arduino device settings are also available, but are only for advanced users. Changing these settings requires a change to the Arduino C/C++ code as well; basically, don’t mess with these settings unless you really know what you’re doing.

define baud = 115200 Define the baud rate to use as a number.
The baud rate controls how fast the computer will talk with the Arduino.  Faster is normally better, because it allows the the computer to send more commands to the Arduino, and the Arduino to send more data back to the computer.  However, sometimes faster can introduce communication problems between the computer and the Ardunio.  If you experience communication problems between the computer and the Arduino then you can try lowering the baud rate.In the Arduino code around line 64 is the line:
You can change this to one of the values below, and then re-upload the code into the Arduino.

Please don’t hesitate to contact us for more details if you are not comfortable changing the Arduino C code.

Possible values are 300, 600, 1200, 2400, 4800, 9600, 14400, 19200, 28800, 38400, 57600, or 115200, and the default is the fastest – 115200.
NOTE: If you change this you will need to change it in the Arduino C/C++ code as well.

define parity = “None” Define the baud rate to use as a number; the default is “None”.
The valid options are “None”, “Even”, “Odd”, “Space”, and “Mark”.
NOTE: If you change this you will need to change it in the Arduino C/C++ code as well.
define stopbits = 1 Define the stop bits to use as a number; the default is 1.
The valid options are 1, 1.5, or 2.
NOTE: If you change this you will need to change it in the Arduino C/C++ code as well.

Any changes to these values after the device has been created are ignored. Additionally, any “devices” that share the same serial port (in the example below, COM3) will only use the baud, parity and stopbits defined in the first device for that COM port. This shouldn’t be a problem for most users because I strongly recommend that you do not change these values anyway. :-)