Hi Tom and thanks for your patient, have done my spelling miss take and up load work fine. Now I will connect it all, and try it out.
I have write the code to read the LDR and serial print data. The relays is Finder 40.62. 40.62.9.012.0000 FINDER - Relay: electromagnetic | DPDT; Ucoil: 12VDC; Icontacts max: 20A | TME - Electronic components
Pin 7 and 2 are not connected in this experiment.
If DMM is multimeter yes I got one.
Kind regards Botvid