This is an older circuit, which we altered, to try and make more simple.
We decided to try to alter the circuit so we only had two LDR's, for simplicity in the programming, and so that there would be less that could go wrong.
The switch connected to pin 7 is the selector switch.
The LDR's had to be connected to pins 0,1,2 because they are the analogue pins, which were needed to read the signal from the LDR's. Pin 7 is a digital input. As shown, the motor board is the same as the other diagram, just drawn differently.
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