Port:open()

Port:open([state])method

Open the Port for serial communication with another connected device.

Parameters

[state]

An optional table to configure the serial communication, using the following optional fields :

["rts"] : a string that indicates the RTS mode, defaulting to "off" (see Port-rts.html for other possible values)
["dtr"] : a string that indicates the DTR control signal, defaulting to "disabled" (see Port-dtr.html for other possible values)
["baudrate"] : a number that indicates the transmission speed, defaulting to 9600 (see Port-baudrate.html for other possible values)
["bytesize"] : a number that indicates the byte size, defaulting to 8 (see Port-bytesize.html for other possible values)
["parity"] : a string that indicates the parity mode, defaulting to "none" (see Port-parity.html for other possible values)
["stopbits"] : a string that indicates the stop bits mode, defaulting to "one" (see Port-stopbits.html for other possible values)

Return value

Returns true if serial Port has been successfully opened.
In case of error, returns false. Error message can be obtained with the sys.error property.

Example


--! luart-extensions
import serial

local COM1 = serial.Port("COM1")
if COM1:open() then
  print("COM1 serial port is now open")
else
  print("Failed to open COM1 serial port")
end