Sensors
In this chapter, we will cover bend sensors, pressure sensors, light sensors, accelerometer, gyroscopes, and compass sensors. A sensor is a device that can detect events or changes of different kinds and can provide a corresponding output. It is a device that changes some characteristics due to external conditions and can be connected to a circuit, converting the signal so that it can be interpreted by a microprocessor.
With some sensors, you need to build you own circuitry and interpret the data provided by the sensor through code. Some complex sensors have a built-in communication protocol, which enables them to provide data corresponding to their function. The sensitivity of a sensor indicates how much the output data can change.
A bend sensor
The first sensor we will try out is a bend sensor. Sometimes it is also known as a flex sensor, and the name gives a good hint at what kind of sensor this is. As the name suggests, this sensor senses bends. The sensor works similarly to most...