Button dimming (8-bit value)

[Daniel]

Hi
You can do it as fallow.
Create 4 bit dim object 3.007 and let all parameters as default.
Create event based script on this object and use this script.

Code:

step = 10    --dimming step stepTime = 0.5  --- dimming interval ballastAddress = 1   gatewayID='internal' ----------------------------------------------------------------------------------------------------- valuein = event.getvalue() require('user.dali')    res, err = dalicmd(gatewayID, 'queryactual', { addrtype = 'short', address = ballastAddress })  -- read ok         if res then      status = res:byte()         end while( valuein==11 ) do  status = status + step     if (status >254) then              dalicmd(gatewayID, 'arc', { addrtype = 'short', address = ballastAddress, value = 254})          else      dalicmd(gatewayID, 'arc', { addrtype = 'short', address = ballastAddress, value = status})     end  valuein = grp.getvalue(event.dst)  os.sleep(stepTime) end     while( valuein==3 ) do  status = status - step      if (status <0) then          dalicmd(gatewayID, 'arc', { addrtype = 'short', address = ballastAddress, value = 0})          else        dalicmd(gatewayID, 'arc', { addrtype = 'short', address = ballastAddress, value = status})      end    valuein = grp.getvalue(event.dst)  os.sleep(stepTime) end

Modify parameters
Add this object on to visu and test.
Should work :
Dalli arc is logarithmic curve so you will have slower dim on low values and fast on bigger.

BR