LUX Meter Module Based On OP-Amp

LUX Meter project has been design to measure the illumination.  Illumination is luminous flux falling on surface area of photo diode.  This illumination converted to corresponding voltage using Op-Amp circuit. Specifications       Supply 9 VDC PP3 Battery @ 20 mA      Onboard Photo Diode      Onboard preset for calibration      Range selection via jumper 10mV/LUX, 1mV/LUX, 0.1mV/LUX      Interfacing

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