week 2
1. Design Compared with the design of the plane mask in the first week, we further improved the arrangement of the shade panel in this week to make it more effective. In the last vision of the plane we found that when in some special dgree the sigle shade panel will affect several other photoresistors, which may cause light source identification error. In the new vision, the number of photosensitive resistors is reduced to three, and the four shade panels have be replaced by a T shape shade panel, the photosensitive resistors below the shade panel is used for shuffling control and the photosensitive resistor under the shade panel can do the swing up and down control. When all three photosensitive resistors can come into the light, the platform will face the light. 2. Hardware On the hardware side, we have designed the circuit schematic diagram is the picture below. The pin A0 to A2 is used to connect the photoresistances to get the light signal. The pin D1 to D5 is be connected to