MqTT in Wiser for KNX

[admin]

If you don't have a lot of frequent updates you can use event script to publish new values then disconnect.

Add to Common functions and change username/password:

Code:

function mqttpublish(topic, data)
  local broker = 'mqtt.eniris.be'

  local username = 'xxx'
  local password = 'xxx'

  local port = 1883

  local mqtt = require('mosquitto')
  local client = mqtt.new()

  if type(data) == 'table' then
    data = require('json').encode(data)
  end

  client.ON_CONNECT = function(status, rc, msg)
    if status then
      log('mqtt cloud connected')
      client:publish(topic, data)
    else
      log('mqtt cloud connect failed ' .. tostring(msg))
      client:disconnect()
    end
  end

  client.ON_PUBLISH = function()
    log('disconnecting')
    client:disconnect()
  end

  client:login_set(username, password)
  local status, rc, msg = client:connect(broker, port)

  if status then
    client:loop_forever()
  else
    log('cloud connect failed: ' .. tostring(msg))
  end
end

Event script example:

Code:

topic = 'Actual Temp/Hal A/S2'
data = {
  time = os.time(),
  extraTags = {
    subId = 'T19'
  },
  fields = {
    temperature_degC = event.getvalue()
  }
}

mqttpublish(topic, data)