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Please help me to made the simple switch with photo-diode

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Thread Starter

codon

Joined Feb 21, 2009
1
Could some one show me how to built the simplest on-off switch using a photo-diode driving 12v replay.When you block the photo-diode,replay will turn on and turn off when unblock the photo-diode.The diode transmitter and photo-diode about 30cm far.Thanks!
 
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