The sophistication of technology today we can see from the gadget that we have. One of the most popular gadgets and owned by more than 4 billion people is the Smartphone. Yes, almost every year the Smartphone manufacturers release new types of their products. Various advantages we can find and there are even some sensors installed in the Smartphone to help the performance of the Smartphone itself.
Let’s start with the first most used sensor that is accelerometer sensor. This sensor serves to detect the orientation of the device when we change the screen mode from upright (portrait) to landscape (landscape). Usually, this sensor works when we play a game of horizontal type like racing by using the steering by means of the device, this sensor will be active automatically. This sensor can also be disabled when we do not need it.
Almost the same as the accelerometer sensor, this sensor also detects the orientation of a device. The difference is the accelerometer is affected by gravity, whereas the gyroscope is not. Another difference lies in its own function, the gyroscope is more precise by setting the principle of angular momentum. In addition, the gyroscope is also capable of displaying additional dimensions for the information provided by the accelerometer by tracking the rotation of the device.
The next sensor is a sensor that is also commonly found in Smartphone at this time, the magnetometer. From its name, it is predictable that these sensors are capable of detecting magnetic fields. The magnetometer is one of the sensors used in the Smartphone compass application to lead to the north pole of the earth. Applications created to detect metals also use this sensor.
The proximity sensor on the Smartphone works to turn off the screen at the time of calling. This sensor is generally located on the top of the Smartphone or next to the front camera which consists of infrared LED and infrared light detector. The proximity sensor works by emitting a glimmer of reflected infrared light from a nearby object and then being picked up by an infrared detector.
So when the Smartphone is near to the ear then the screen will die with automatic. With this proximity sensor battery usage will certainly be more efficient at the time of calling.