(05.07.2022, 06:36)admin Wrote: Add before multiply function:

Code:

function onofftobool(payload)
  return tostring(payload):lower() == 'on'
end

Then modify mqtt_to_object_conv table:

Code:

mqtt_to_object_conv = {
  ['shellies/shellyplug-s-D9AA39/relay/0'] = onofftobool,
}

(20.06.2022, 13:14)a455115 Wrote:

Code:

if not broker then
  broker = '127.0.0.1'

  function multiply(mult)
    return function(value)
      local num = tonumber(value)
      if num then
        return num * mult
      else
        return value
      end
    end
  end

  -- topic to object map
  mqtt_to_object = {
    ['shellies/shellyplug-s-D9AA39/relay/0'] = '32/1/1',
    ['shellies/shellyplug-s-D9AA39/temperature'] = '32/1/2',
  }

-- optional topic value conversion function
mqtt_to_object_conv = {
  ['shellies/shellyplug-s-D9AA39/relay/0'] = multiply(1),
   ['shellies/shellyplug-s-D9AA39/temperature'] = multiply(1),
}

  -- object to topic map
object_to_mqtt = {
   -- ['1/1/1'] = 'out/topic1',
   -- ['1/1/2'] = 'out/topic2',
  }

  datatypes = {}

  grp.sender = 'mq'
  require('socket')

  for addr, _ in pairs(object_to_mqtt) do
    local obj = grp.find(addr)
    if obj then
      datatypes[ addr ] = obj.datatype
    end
  end

  mclient = require('mosquitto').new()

  mclient.ON_CONNECT = function(res, ...)
    log('mqtt connect status', res, ...)

    if res then
      for topic, _ in pairs(mqtt_to_object) do
        mclient:subscribe(topic)
      end
    else
      mclient:disconnect()
    end
  end

  mclient.ON_MESSAGE = function(mid, topic, payload)
    local addr = mqtt_to_object[ topic ]
    if addr then
      local fn = mqtt_to_object_conv[ topic ]

      if fn then
        payload = fn(payload)
      end

      grp.write(addr, payload)
    end
  end

  mclient.ON_DISCONNECT = function(...)
    log('mqtt disconnect', ...)
    mclientfd = nil
  end

  function mconnect()
    local fd

    mclient:connect(broker)
    fd = mclient:socket()

    -- fd ref is valid
    if fd then
      mclientfd = fd
    end
  end

  mconnect()

  function publishvalue(event)
    -- message from us or client is not connected
    if event.sender == 'mq' or not mclientfd then
      return
    end

    local addr = event.dst
    local dpt = datatypes[ addr ]
    local topic = object_to_mqtt[ addr ]

    -- unknown object
    if not dpt or not topic then
      return
    end

    local value = busdatatype.decode(event.datahex, dpt)
    if value ~= nil then
      if type(value) == 'boolean' then
        value = value and 1 or 0
      end

      mclient:publish(topic, tostring(value))
    end
  end

  lbclient = require('localbus').new(1)
  lbclient:sethandler('groupwrite', publishvalue)

  lbclientfd = socket.fdmaskset(lbclient:getfd(), 'r')

  -- run timer every 5 seconds
  timer = require('timerfd').new(5)
  timerfd = socket.fdmaskset(timer:getfd(), 'r')
end

-- mqtt connected
if mclientfd then
  mclientfdset = socket.fdmaskset(mclientfd, mclient:want_write() and 'rw' or 'r')
  res, lbclientstat, timerstat, mclientstat =
      socket.selectfds(10, lbclientfd, timerfd, mclientfdset)
-- mqtt not connected
else
  res, lbclientstat, timerstat =
    socket.selectfds(10, lbclientfd, timerfd)
end

if mclientfd and mclientstat then
  if socket.fdmaskread(mclientstat) then
    mclient:loop_read()
  end

  if socket.fdmaskwrite(mclientstat) then
    mclient:loop_write()
  end
end

if lbclientstat then
  lbclient:step()
end

if timerstat then
  -- clear armed timer
  timer:read()

  if mclientfd then
    mclient:loop_misc()
  else
    mconnect()
  end
end

(14.10.2022, 06:17)admin Wrote: Use this (1/1/1 is battery object, 1/1/2 is target temperature value object):

Code:

mqtt_to_object = {
  ['shellies/shellytrv-14B457E5C2C8/info'] = '1/1/1',
}

mqtt_to_object_conv = {
  ['shellies/shellytrv-14B457E5C2C8/info'] = function(payload)
    local data = require('json').pdecode(payload)

    if type(data) == 'table' then
      grp.write('1/1/2', data.target_t.value)
      return data.bat
    end
  end
}

(17.10.2022, 10:00)admin Wrote: Try this:

Code:

mqtt_to_object = {
  ['shellies/shellytrv-14B457E5C2C8/info'] = '1/1/1', -- battery level
  ['shellies/shellytrv-ABC/info'] = '2/1/1', -- battery level
  ['shellies/shellytrv-DEF/info'] = '3/1/1', -- battery level
}

function conv_therm(payload, target_t_addr)
  local data = require('json').pdecode(payload)

  if type(data) == 'table' then
    grp.write(target_t_addr, data.thermostats[1].target_t.value)
    return data.bat.value
  end
end

mqtt_to_object_conv = {
  ['shellies/shellytrv-14B457E5C2C8/info'] = function(payload)
    return conv_therm(payload, '1/1/2') -- target temp
  end,
  ['shellies/shellytrv-ABC/info'] = function(payload)
    return conv_therm(payload, '2/1/2') -- target temp
  end,
  ['shellies/shellytrv-DEF/info'] = function(payload)
    return conv_therm(payload, '3/1/2') -- target temp
  end
}

(03.01.2024, 10:19)admin Wrote: You have duplicate keys in mqtt_to_object and mqtt_to_object_conv - this won't work. If multiple devices share the same topic then you need to manually implement logic for distinguishing what kind of data is received and which object must be updated.

(03.01.2024, 10:26)tomnord Wrote:

(03.01.2024, 10:19)admin Wrote: You have duplicate keys in mqtt_to_object and mqtt_to_object_conv - this won't work. If multiple devices share the same topic then you need to manually implement logic for distinguishing what kind of data is received and which object must be updated.

Ok, I was afraid of that. So i need to make logic that only reads topic once, and then sorts out the different values I'm looking for.

---

So I made a function to look up certain names in the table, is there any way to have the mqtt_to_object run without a GA attached? It will only run the first grp.write:

Code:

function conv_shellyTemp(payload)
  local data = require('json').pdecode(payload) 
      if type(data) == 'table' then
               function tableHasKey(table, prefix)
                        for key, _ in pairs(table) do
                      --log(key)
                        if string.match(key, prefix) then
                        return true
                        end
                        end
                        return false
                        end
         if tableHasKey(data["params"],"temperature") then
                   grp.write('33/1/8', data["params"]["temperature:100"]["tC"])
                grp.write('33/1/10', data["params"]["temperature:101"]["tC"])
       elseif
            tableHasKey(data["params"],"switch") then
                   grp.write('33/1/9', data["params"]["switch:0"]["output"])
          else
        log("no data")
        end
    end
  end