Create a Night Light
This is an example of using an input (sensor) component to change an output of an output component.
Supplies
Circuit Board | |
Breadboard | |
Jumper Cables | |
Photoresistor (light sensor) | |
Standalone LED Light (any color with 2 leads) | |
100 Ohm Resistor | |
220 Ohm Resistor |
Diagram
The photoresistor data (yellow) is connected to pin A0 (analog) and the LED data (orange) is connected to pin 2 (digital).
Code
This code gets the amount of light coming in via the sensor and if it's dark enough, the LED will light up.
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