Maybe I should publish the whole script.

--local myDevicename = 148 -- change to the name of the device that will trigger this script
local MyDevices = {1,2,7,8,9,10,11,12}
return
{
on =
{
timer =
{
'every minute',
},
},

logging =
{
level = domoticz.LOG_DEBUG, -- change to LOG_ERROR ...

I would like to forward temperatures, pressure, on/off etc. to mosquitto, but I do not manage to send the values.
Tried different aproaches, but alwasy get errors when creating "myMessage".
Only the one which is commented out works, but it only sends sensorname\nil.

for i,device in ipairs ...