> hi all, i am working on a IR transmitter receiver design and using
> sharp IS1U60 receiver. But i cant detect transmitter signals 50 cm.
> far from the receiver. i try to amplify current with opamp but i does
> not do any good. what shall i do?

give some details:
- which code/encoding etc are you using
- which send diode
- what is the (peak) current through the diode

and which current are you trying to amplify with an opamp??

Wouter van Ooijen
--
Van Ooijen Technische Informatica: http://www.voti.nl
Jal compiler, Wisp programmer, WLoader bootloader, PICs kopen

--
http://www.piclist.com hint: The PICList is archived three different
ways.  See http://www.piclist.com/#archives for details.