You have two fundamental problems here.

1)      Most the optics I have seen want +5 VDC, you might have blow something b
y
 hooking it up to +9V.

2)      The optic probably does not have enough drive current for an LED, you'll
 want
 to look at the output with a scope.

        Do an exhaustive we search for a data sheet if you don't already have on
e.

Ben


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From:   ctmx1010[SMTP:lpq@CITENET.NET]
Reply To:       pic microcontroller discussion list
Sent:   Tuesday, December 09, 1997 10:46 PM
To:     PICLIST@MITVMA.MIT.EDU
Subject:        INCREMENTAL ENCODER

SOME TIMES AGO A FEW OF YOU GUYS WERE DISCUSSING ABOUT SENSING THE SHAFT
POSITION OF A MOTOR BUT I DONT REMEMBER WHO!
SO MY QUESTION IS TO EVERYONE
I WANT TO TEST  (TO SEE IF IT WORK AND HOW IT WORKS) A OPTICAL INREMENTAL
SHAFT ANGLE ENCODER MADE BY VERNITECH
MODEL VOE 20-250-AO-PU5-1L1-1795
4 WIRES, RED, BLK,GRN,WHITE
SO FAR I CAN'T SEE ANY ACTIVITY ON MY BREADBOARD TRYING TO DRIVE SOME LED
WHILE POWERING WITH 6 AA BATTERY(9VOLT)
PLEASE HELP!!!
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