hi all
i want to glow led using opto coupler. my actual project is to mount an opto coupler on the aluminium disc in an electric meter. aluminium disc has a small hole in it. when the disc makes a complete rotation and hole passes through the opto coupler mounted at specified place,it will let the tx Ir pass through the hole and the output of optocoupler should result in glow of led attached with opto coupler's output..
i don't exactly know which opto coupler to use .and what should be the circutry for led and opto coupler interfacing.
i want to glow led using opto coupler. my actual project is to mount an opto coupler on the aluminium disc in an electric meter. aluminium disc has a small hole in it. when the disc makes a complete rotation and hole passes through the opto coupler mounted at specified place,it will let the tx Ir pass through the hole and the output of optocoupler should result in glow of led attached with opto coupler's output..
i don't exactly know which opto coupler to use .and what should be the circutry for led and opto coupler interfacing.
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