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Author Topic: optical heart-rate  (Read 2808 times)
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qwerty
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« on: July 24, 2007, 03:02:53 15:02 »

help needed. im a beginner in designing circuit and making schematics. im using proteus. the 1st attachment is the design , the 2nd and 3rd attachment is the schematics i made from proteus. is my schematics correct? when i stimulate , it says something about Pin VEE not modelled for U2. what does it means ? help anybody... sorry if it is a stupid questions. thanks.




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