sendSerialString
UART.sendSerialString(port, baud, str, [ezbIndex])
  Parameters
| port | Digital port to send data over. | 
| baud | Baud rate to send data at. | 
| str | String to send. | 
| ezbIndex (optional) | Board index of the EZB to use. | 
Returns
NothingDescription
Sends a string of data over the specified digital port with a baud rate of baud.