Serial Port Class
Returns a boolean describing whether or not the serial port is connected. Unless you've closed the port, this should probably be true.
if( not port:isConnected() ) then print("The port has been closed."); end
string,boolean serialPort:read() string,boolean serialPort:read(number length)
Reads queued data out of a serial port. If 'length' is supplied, this function will only read up to that many bytes. If 'length' is not supplied, it will read up to the maximum buffer size (10240) in bytes.
This function returns two variables: a string containing the data read and a boolean describing whether or not there is more data left in the queue. If this function fails, it should return nil.
local data,more = myPort:read(); -- Read as much as our buffer can hold (10240) -- or -- repeat -- Keep reading until there's no more left in the queue data,more = myPort:read(4); -- Read 4 bytes at a time until not more
boolean serialPort:write(string data)
Writes data to a serial port. Returns true if the function succeeds, otherwise it returns false.
if( not port:write("Hello World") ) then print("Failed to write data"); end
Closes a serial port. Does not accept any parameters nor does it return anything. A serial port becomes useless after being closed and you must re-call serial.open() if you wish to re-open it.
port:close(); port = nil; -- Set it to nil to delete the object so that it can be removed from memory