IR Photointerruptor Circuit

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Uploaded by on Sep 21, 2007

simple LED/transistor
5V supply
220ohm+LED on phototransistor
24ohm on IR LED

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Entertainment

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Standard YouTube License

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  • Does somebody knows how you make this ?

    I understand the IR led circuit but not the Phototransistor circuit.. please !!

    thx

  • Nice job. I've made something like this.

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