want ir LONG RANGE ciruit for reflected type ir sensor

hey guys i am using tsop 1736 but nw the problem is the out of tsop1736 is not getting low.,.when the IR signal recieves the voltage from 5v to goes to 4v as a result the controller take it as HIGH signal..help me..!

Who is sending IR signal? How you are checking voltage levels? if its going to 4v from 5v after IR signal is available. it usually means its working.

m using this receiver side..!

Similar kind of circuit is used in one of the project on our website. You can take reference from that circuit and try it.

http://www.8051projects.net/download-d119-automatic-room-light-controller-visitor-counter-updated.html

check receiver circuit.

hey guys i am using tsop 1736 but nw the problem is the out of tsop1736 is not getting low.,.when the IR signal recieves the voltage from 5v to goes to 4v as a result the controller take it as HIGH signal..help me..!

lucky6772

What transmitter are you using ?
You need a continuous signal at the right frequency to get a response.

Similar kind of circuit is used in one of the project on our website. You can take reference from that circuit and try it.

http://www.8051projects.net/download-d119-automatic-room-light-controller-visitor-counter-updated.html

the receiver circuit given not working...

project is working.. so receiver should also work... So probably your transmitter is at fault then.

nope transmitter m using is tv remote...it cant b faulty..! m not getting any out change at output of 555timer its alwz remains 5v or high.!

check TSOP output, is it going low as soon as you press remote key?

Yes the out of tsop is goin low but not so much 5v to 4v. The voltage is drop but not so much