Port:readline()

Port:readline([eol], [capacity])method

Reads data until a End Of Line character sequence is reached.

Parameters

[eol]

A string indicating the End Of Line characters sequence, defaulting to "\n".

[capacity]

An optional number indicating the capacity of the internal read buffer, defaulting to 1024.

Return value

Returns a Task object to perform the read operation asynchronously.
Once the Task has terminated, it will return a Buffer that contains the data, or false in case of error.

Example


--! luart-extensions
import serial

local COM1 = serial.Port("COM1")

if COM1:open() then
    repeat
        local data = await COM1:readline()
        if data then
          print("Received line : ", data)
        else
          error("Error reading COM1 port");
        end
    until not data
end