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  1. I

    How to Step up Voltage? DC to DC converter or Op Amp

    Hi KrisBlueNZ, With the LDR Buffer build above, it will provide a range of 0V to 5V range of output to the Arduino? Also what does CW and CCW stand for? Is it continuous Wave?
  2. I

    How to Step up Voltage? DC to DC converter or Op Amp

    On the schematic here, where is VR1 on this Op AMP Diagram? So I can know where to place the Bourns 3296W trimpot. The goal of my project is to use a fiber optic cable that can take in different spectrums of light and run it into a photo-resistor to provide (Through the diagram) a range of 0-5V...
  3. I

    How to Step up Voltage? DC to DC converter or Op Amp

    I would line an analog signal ranging from 0-5V depending on the amount of light on the photo-resistor. I'm using the NTE941M op amp. What do I have to change to create an analog signal ranging from 0-5V based on the schematic I provided?
  4. I

    How to Step up Voltage? DC to DC converter or Op Amp

    Hi everyone, I have a circuit with a photoresitor in it (and an OP amp) that gives out a voltage range of 0-.135V. Is there anyway I can expand the range of the voltage from 0-.135V to 0-5V to get a more dramatic change in voltage when light hits the photoresistor?
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