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Light meter

March 11, 2011 by

Light Meter
This is circuit Simple Light Meter, I use Poto Resisitor for sensitivity light. And display ligh value by M1 or mini meter 1mA. …

Simple Light Meter by Photo Resistor
This is circuit Simple Light Meter, I use Poto Resisitor for sensitivity light. And display ligh value by M1 or mini meter 1mA.

Temperature – Light Brightness Meter with LCD
Circuit measures the temperature and ambient brightness of the surrounding environment at the location it is placed.

Simulate the traffic light circuit
This circuit works well. But there are disadvantages. The yellow light will be lit at all times. « Micro ampere meter circuit using uA741 …

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