===== UART RECV =====

With RECV command you can receive one or more ASCII characters from external UART of Carberry.

==== Synopsis ====

  UART RECV [<LEN>]
  
RECV accepts an optional parameter indicating the maximum number of characters to read from UART.

==== Return ====

RECV command returns one (or more) line(s) containing the characters read from UART, followed by a line containing OK.\\
If there are no characters waiting for reading, the command returns only OK line.

==== Examples ====

Receiving some characters:

  UART RECV
  Hello World!
  OK
 
  UART RECV
  OK
 
  
Receiving a maximum of eight characters at a time:

  UART RECV 8
  Hello Wo
  OK
  
  UART RECV 8
  rld!
  OK

  UART RECV 8
  OK