Dusk-to-Dawn-Light

Purpose:

Pre-lab: We construct a circuit belove.

The picture of our circuit constructed with photocell, resistor, power sources, and transistor. 

This picture shows the value of the current when the photocell is not covered 

This picture shows the value of the current when the photocell is covered 

Here is the video, but we cannot clearly see between low and high light level since we turned of the light in the room. If we left the light in the room on, we could see clearly that the LED will brighter when we cover the photocell, and vice versa.