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Arduino Light Sensor Triggers an LED Tutorial

Light Sensor Trigger LED (photoresistor triggers LED)

In this Arduino tutorial, we’re going to make a a circuit wherein a light sensor triggers and LED to light based on the the level of light in the room. Light sensors are actually light sensitive resistors (or photoresistors). With this type of resistor, its value resistance value changes based on the amount of light […]

Control High Voltage Devices with an Arduino

One of the best features of the Arduino is the ability to control relays.  Relays allow a circuit of one voltage or current to be operated by a circuit of a different voltage or current. In the case of an Arduino that operates at either 3.3V or 5V DC, connecting a relay allows us to […]