As explained by Arduino to Go, each color band on the resistor corresponds to a number but this can differ depending on the band's placement.It's not complicated, but the sheer number of colors ...

- Now connect the other end of the 10K resistor to the negative rail - And the the second (free) leg of the LDR to the positive rail; Pretty much this is what we need for the light sensing. Basic ...

Connect the A0 pin of the Arduino to the same column where the LDR and resistor is connected (Since the LDR gives out an analog voltage, it is connected to the analog input pin on the Arduino. The ...