This is a clock that turns ON after 2 minutes, after another 10 sec. OFF and then always ON after 20 sec and OFF again after 10 sec until the shutter release goes to OFF.
Note: Please unpack the zip file with a packing program (e.g. 7-Zip) or call up the properties of the downloaded zip file and check the “Allow” box if you are on the safe side. Otherwise the dll files will be blocked!