How do I add a sensor to my Arduino?
How do I add a sensor to my Arduino? Plug the three pins of your sensor into three different rows on your breadboard. Connect a wire from the 5v on your Arduino to row containing the 5v pin on your sensor. Connect a wire from A0 on your breadboard to breadboard row containing the pin marked with an S. How does Arduino detect light? Arduino - Light Sensor By connecting a pin of the photoresistor to an analog input pin, we can read the analog value from the pin by using analogRead() function, and then we can know the light...