Amrita Profile Topics Started Replies Created Engagements Search replies: Forum Replies Created Viewing 1 post (of 1 total) Author Posts February 1, 2012 at 5:44 pm in reply to: Bi Directional Visitor Counter circuit has problem #7099 AmritaParticipant also it assumes that when there will be an obstruction between IR-TX & IR-RX the output will be high, which is wrong, the output from OPAMP will be low. Author Posts Viewing 1 post (of 1 total)