Nightwatch is capable of determining if the current ambient light level is 'light' or 'dark'
Dependent on: a threshold value for ambient light level.
Could be hard coded initially but, preferably a user setting using some form of persistent memory present
Nightwatch must be able to detect the ambient light level.
Requires some research on connecting and reading values from ADAFruit VEML 7700 I2C Lux sensor (adafru.it/4162)