EnOcean Remote Controle

[Tee_Trinker]

i create a virtual object, then the event based script....changed the lamp addrres, but its the same.
what do i wrong?

lampAddress= '0/0/24'
value = event.getvalue()

lamp = grp.getvalue(lampAddress)
if value == false then
  if (lamp == true) then
    grp.write(lampAddress, false)

    else
    grp.write(lampAddress, true)
    end
end