2Light-Activated Night-Light
This project is a simple test of a photoresistor’s functionality: we’ll create a night light that gets brighter depending on the amount of light detected.
PARTS REQUIRED
Arduino board
Breadboard
Jumper wires
Photoresistor
LED
10k-ohm resistor
HOW IT WORKS
A photoresistor is a variable resistor that reacts to light; the less light that shines on it, the higher the resistance it provides. This resistance value varies the voltage that’s sent to the input pin of the Arduino, which in turn sends that voltage value to the ...
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