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  1. 24-11-2012 #1
    Tom's Avatar
    Lives in Nottingham, United Kingdom.
    Tom
    Last Activity: 11-11-2023 Has been a member for 9-10 years. Has a total post count of 176. Referred 1 members to the community.
    Here's the circuit I've arrived at. The resistance values are 100 ohm for the led, and 6800 ohm for the sensor. The signal gets connected to the parallel port.

    What am I doing wrong?:thumbup:
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