Arduino Starter Kit

The Arduino is a small computer or microcomputer that can be used to read inputs from real world sensors like the status of a switch or temperature and then drive real world outputs eg switching on a LED or relay. What makes the Arduino so powerful is that it can be easily programed to switch outputs based on the status of its digital or analog inputs. For example you could connect a motion sensor and a temperature sensor to the Arduino’s inputs and then program the Arduino to switch on a fan connected to one of the Arduino’s outputs only if the motion sensor detected movement and if the temperature was above a predetermined set point.