26.03.2024, 08:27
Hi,
Im trying to create a solution to send every object update (sync all knx data) to mqtt using your code.
Why the value is not updating ?
MQTT:
campusdst
out
setpoint = 23
status = 1 >> value not updated automaticaly, why ?
in
status = 0 >> actual value (update with success every publish)
Im trying to create a solution to send every object update (sync all knx data) to mqtt using your code.
Why the value is not updating ?
MQTT:
campusdst
out
setpoint = 23
status = 1 >> value not updated automaticaly, why ?
in
status = 0 >> actual value (update with success every publish)
Code:
------------------------------------------------------------
------------------- MQTT SUBSCRIVER ------------------------
------------------------------------------------------------
if not broker then
-- MQTT settings:
broker = '192.168.xxx.xxx'
port = 1883
username = "xxxxxxx"
password = "xxxxxxx"
-- topic to object map
mqtt_to_object = {
['xxx/in/status'] = '32/1/2',
['xxx/in/setpoin'] = '32/1/3',
}
-- object to topic map
object_to_mqtt = {
['32/1/2'] = 'xxx/out/status',
['32/1/3'] = 'xxx/out/setpoint',
}
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
log("change address: " .. addr .." to value :"..payload)
grp.write(addr, payload)
end
end
mclient.ON_DISCONNECT = function(...)
log('mqtt disconnect', ...)
mclientfd = nil
end
function mconnect()
local fd
mclient:login_set(username, password)
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
![[Image: test.png]](https://i.ibb.co/r43RnTP/test.png)
