Barionet 500 IO

Callback and direct access functions for the digital inputs and outputs of the Barionet 500

Library

barionet-io.lua

Functions

Initialisation

dio = require "barionet-io.lua"

Set Output

dio.setio(function, value)

function: IO pin (1,2,3,4 for the relays)

value: 0 or 1 for off/on

Get Input Value

x = dio.iostate(function)

function: IO pin (201,202,203,204 for the digital inputs)

return value: 0 (off) or 1 (on)

Start monitoring (for callback)

dio.start(tim,iocallback)

tim: poll time for the io (in ms)

iocallback: function to be called when an input changes its value

Callback Function

This function is called from the background when an input has changed

iocallback(function,val) -- this is the function you have to give to the start monitoring call

function: is the input address which changes

val: is the new value of the input pin

Example program

local uv = require 'luv'

local dio = require 'barionet-io'

​

function iocallback(adr,val)

  print(string.format("io callback adr %u val %u",adr,val))

  dio.setio(adr-200,val)

end

​

dio.start(100,iocallback)

​

uv.run();