rahul Profile Topics Started Replies Created Engagements Search replies: Forum Replies Created Viewing 1 post (of 1 total) Author Posts March 7, 2013 at 4:02 pm in reply to: Realtime energy meter reading using GSM #9274 rahulParticipant hey I am also working on this project.. but I am stuck at the optocoupler part.. the voltage levels from the energy meter are faint. I measured them across the LED Author Posts Viewing 1 post (of 1 total)