Examples of sensors

This is a sensor

A PIR sensor is designed to respond to motion of humans near the sensor.

This is also a sensor

A microphone responds to the vibrations of sound.

This is a sensor

A camera responds to light hitting the sensor of the camera through a lens.

This is also a sensor

A keyboard responds to people pushing the keys.

So. What is a sensor? What does it do….

Take a pause to think about that before you click to the next page which has the answer on it!