NodeMCU Light Sensor
The ESP8266 ESP-12E has only one analog input, that is A0 (which tolerates a range 0-1 volt).

digitalRead() statements are not appropriate for a photocell within a potential divider since you will simply get a boolean result 0 or 1 from the connected pin. 

You can read one photocell connected on A0 by analogRead( A0 ) assuming it is so connected within a potential divider that a maximum of 1 volt is presented to pin A0.

The Arduino Uno by contrast has 6 Analog inputs which tolerate up to 5 volts