A modern smartphone is a complex high-tech computing device that is more powerful than the thousands of on-board computers that launched Apollos to the moon half a century ago. Sensors on board the flagship mobile phones are also installed almost more than on board this same Apollo. Each of them imperceptibly, but conscientiously performs his work. What do all these smartphone sensors do and how they work - read on for more details.
The lighting sensor in the smartphone is located on the front panel, usually near the speaker (there are exceptions). Structurally, it is a semiconductor sensor sensitive to the photon flux. Depending on its intensity, the sensor controls the backlight of the display in order to more efficiently consume battery power. It can also perform an auxiliary function for other tasks, working with a proximity sensor.
Proximity sensor
This is an optical or ultrasonic sensor that determines if there are objects in front of the screen. It sends out a very weak light or sound pulse, and if it is reflected, it registers the reflected signal. Due to this, the screen is automatically locked in talk mode or when the smartphone is turned upside down. Traditionally, the proximity sensor is calibrated in such a way that it registers only 2 states: “foreign object closer than N (usually 5) centimeters” and “foreign object further than N cm”.
Accelerometer
This smartphone sensor is located on the board and is a miniature electromechanical device that registers the slightest movements. The responsibilities of this sensor include switching the orientation of the smartphone screen when tilted, controlling games, registering special control gestures (like shaking or tapping on the body), and measuring steps (by counting rhythmic vibrations while walking).
Conventional dual-axis accelerometer in a smartphone
There are two-axis and three-axis accelerometers. A feature of the accelerometer is that at rest - one of the axes will always show a value in the region of 9-10 m / s 2 (in a three-axis three-dimensional accelerometer). This is due to the fact that the Earth's gravity is on average 9.8 m/s 2 .
Gyroscope
The gyroscope is responsible for determining the movement and orientation of the smartphone in space. It also structurally represents MEMS (microelectromechanical circuitry) located on the system board. Its fields of application overlap with those of the accelerometer. The main differences are that the gyroscope has noticeably greater accuracy and measures movement not in m/s 2 but in radians or degrees per second. Due to this, it can be used to track the rotation of the head in a VR headset, as well as more accurately implement gesture control.
MEMS gyroscope under the microscope
Magnetometer and Hall sensor
The magnetometer measures the magnitude of the magnetic field of the surrounding world. It also takes measurements in 3D space (along the three axes of Cartesian coordinates - X, Y and Z). The main function of the magnetometer is to more accurately determine the position during navigation. In this mode of use, it functions as a digital compass. Due to the fact that one of the axes, which is located in the plane with the North Pole of the Earth, registers a constantly elevated background. The magnetometer helps to more accurately determine in which direction relative to the north the smartphone is moving.
Smartphone magnetometer
Often a magnetometer is called a Hall sensor, but these are not quite identical concepts. We wrote more about the Hall sensor in another article. The differences are that the first one is more versatile and sensitive. The magnetometer is capable of measuring magnetic radiation, while only registering its presence/absence and decrease/intensification. In modern smartphones, a separate Hall sensor is usually not installed, since the universal magnetometer fully covers its functionality.
One of the alternative functions of the magnetometer is to search for wiring in the walls. An energized conductor generates weak electromagnetic radiation, and the sensitivity of the sensor is units of microtesla. If you drive your smartphone along the wall, then at the place where the cable is laid, the magnetic background will be increased.
gravity sensor
Measures the force of gravity of our planet in three-dimensional space. At rest (when the smartphone is on the table), its readings should match the accelerometer: on one of the axes, the gravitational force will be close to 9.8 m/s 2 . On its own, this sensor is not usually used, but it helps the work of others. In navigation mode, it determines which way the earth's surface is in order to quickly determine the correct position of the smartphone. When used in VR, due to the gravity sensor, the correct positioning of the picture is carried out.
Linear acceleration sensor in a smartphone
The principle of its operation is almost identical to the accelerometer, the only difference lies in the inertia. That is, the readings of this sensor do not depend on any global external factors (like gravity). The only thing that it registers is the speed of the smartphone in space relative to its previous position.
The linear acceleration sensor is not capable of determining the position of the device in space (there is no reference to external landmarks), but this is not necessary (the gravity sensor and the accelerometer do an excellent job with this task). The absence of reference to external landmarks allows you to rotate objects on the display without reference to these landmarks, for example, in games. Also, this sensor, in conjunction with others, increases the overall accuracy of determining movements.
Rotation sensor
It determines the direction and frequency of rotation of the smartphone relative to one of the axes of three-dimensional space. Like the acceleration sensor, it is independent and is not tied to external landmarks. Often performed as part of a single module with a linear acceleration sensor. Separately, as a rule, it is not activated, but it allows you to adjust the operation of other sensors to improve accuracy. It also helps with gesture control, for example, turning the smartphone in the hand activates the camera.
MEMS gyroscope in section
Temperature sensors
A modern smartphone is abundantly stuffed with digital thermometers. Structurally, they are a thermocouple: a resistor with two leads, the resistance between which varies depending on temperature. Since it is relatively primitive, it can even be performed inside a semiconductor chip.
Every smartphone has a battery temperature sensor. When it overheats, it turns off the charging or reduces the output current to prevent the electrolyte from boiling, which causes a fire or explosion. Thermometers inside SoCs are also common (in quantities from a couple of pieces to a dozen or more). They measure the temperatures of processor cores, graphics accelerator, various controllers. Sometimes there are ambient temperature sensors, but they are not very common. The reason for this is low accuracy, since the heat from the insides of the device and the user's hands distorts the readings.
Pressure sensor (barometer) in a smartphone
The barometer in a smartphone measures atmospheric pressure (in mmHg, bar or pascals). It allows you to more correctly determine the location and height above sea level, since the pressure decreases as you rise. It can also be used as an altimeter, measuring height above sea level, but the accuracy leaves much to be desired as barometric pressure changes with the weather. Even less in demand is the function of adjusting the weather forecast in weather programs and widgets.
Hygrometer
A hygrometer measures the humidity in the air. Its main purpose is obvious, but this sensor is not popular. In theory, it can be used to correct weather forecast data. Knowing the readings, you can also control the indoor climate by turning on a humidifier or dehumidifier. The only known smartphone with a hygrometer is the old Samsung Galaxy S4.
Heart rate monitor or heart rate sensor in smartphones
The heart rate monitor is able to measure the frequency and rhythm of heart contractions. In the process of playing sports, it makes it possible to monitor the work of the heart and adjust the load to increase the effectiveness of training. The disadvantage of a heart rate monitor is the need for a tight contact of the smartphone with a part of the body in which blood vessels are close to the surface (for example, fingers) in order to catch the slightest pulsations. Because of this, it has not gained popularity in smartphones, but it is found everywhere in smart watches and fitness trackers.
heart rate monitor
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If you remove all sensors from your smartphone, it will lose an impressive part of its functions and turn into a rather primitive device. Even actions familiar to users, such as changing the screen orientation when moving the gadget to a horizontal position and automatically turning off the display during a conversation, would not be performed without sensors.
In an effort to win competition in the market, manufacturers of modern mobile technology equip their devices with a huge number of sensors - because this increases functionality. In this article, we will talk about all known smartphone sensors, including those that are installed in the latest models.
Accelerometer– one of the main sensors of the smartphone; it is also called G-sensor. The function of the accelerometer is to measure the linear acceleration of the smartphone along 3 coordinate axes. Data about the movement of the device is accumulated and processed by a special controller - of course, this happens in a matter of fractions of a second. Places a tiny sensor approximately in the center of the smartphone body. Self-replacement of the accelerometer in the event of a breakdown is excluded - you have to go to the service.
Who should thank developers for accelerometers in smartphones? First of all, fans of racing simulators who are able to drive virtual cars by simply tilting the device left and right. It is the accelerometer that allows the gadget to change the screen orientation from portrait to landscape when the user flips the device.
The first accelerometer appeared on the phone 5500 . This sensor caused a storm of enthusiasm among supporters of an active lifestyle, because it allowed the use of a pedometer.
The accelerometer has one significant drawback: it can only fix the position when acceleration- that is, when the gadget moves in space. The accelerometer is not able to determine the position of the apparatus lying on the table. A "partner" sensor called . Such a sensor measures the rate of angular rotation and provides higher data accuracy than an accelerometer. A gyroscope that has gone through the calibration procedure will not have an error of more than 2 degrees.
The gyroscope is actively used in mobile games - in combination with the accelerometer. In addition, this sensor makes possible cameras, panoramic shots (the gyroscope determines how many degrees the smartphone has been rotated), gesture control.
The first smartphone with a gyroscope was 4 . Now the gyroscope is far from exotic; they (as well as the accelerometer) are equipped with most modern devices.
Proximity and light sensors
The presence of a proximity sensor (Proximity Sensor) in a smartphone is an objective necessity. If there were no such sensor, the user would have to endure inconvenience every time they talk on the phone. It would be enough to easily touch the reset button with your cheek - and the conversation is terminated, you need to call the subscriber again. The function of the proximity sensor is obvious: it locks the screen of the gadget as soon as the user brings the device to the ear. This sensor allows the smartphone owner not only to communicate comfortably, but also save battery power.
The proximity sensor "hides" under the front glass of the mobile device. It consists of 2 elements: diode And detector. The diode sends out an infrared pulse (invisible to the human eye), and the detector tries to catch its reflection. If the detector succeeds, the screen "darkens". The sensor is able to register only 2 states: “ foreign object closer than 5 cm" And " foreign object further than 5 cm».
The company has achieved amazing results in experiments with the proximity sensor. Based on this sensor, the Korean manufacturer has created gesture sensor, thanks to which contactless control of the smartphone became possible. The first gesture sensor appeared on the Samsung Galaxy S3 - in 2012 it was a real breakthrough.
The Light Sensor is not in vain considered in tandem with the proximity sensor - as a rule, these two sensors are located in close proximity to each other. The light sensor is the "oldest" of all sensors that are used in mobile electronics. It is also the simplest - from a structural point of view, this sensor is a semiconductor that is sensitive to the photon flux. The function of the light sensor is not as responsible as that of the proximity sensor: Light Sensor only adjusts the brightness of the display in accordance with the surrounding conditions.
Some Samsung models (such as the Galaxy Note 3 and Galaxy S5) have RGB sensors. The RGB sensor is able not only to change the brightness of the display, but also to adjust the proportions of red, green, blue and white colors of the image on the screen.
The developers of Samsung Galaxy Note 4 reached the point of absurdity: they taught the sensor to measure illumination in the range invisible to humans - ultraviolet. Thanks to this curious innovation, the user can, for example, choose the optimal time for sunbathing.
Barometer and temperature sensor
A person with high sensitivity to sudden changes in atmospheric pressure simply needs to have a barometer application in their smartphone. On Google Play, for example, one of these programs is called “Barometer”.
The barometer sensor is able not only to warn the user about the approach of a cyclone - anticyclone; it's not even its main function. The sensor increases the efficiency and accuracy of the gadget's GPS navigator. GPS satellites show where in the world the place you are looking for is located - but not at what height. This shortcoming of their work is eliminated by the barometer. A pressure sensor can help you find, say, the office of a certain company in a multi-story business center building.
Temperature sensors, unlike barometers, are present in most smartphones - however, you cannot measure the temperature on the street with their help. This is about internal thermometers, whose task is to ensure that the gadget does not overheat. One smartphone can have a lot of these sensors: the first controls the graphics accelerator, the second controls the processor cores, and so on. If overheating occurs, the internal thermometer will automatically stop charging or reduce the output amperage.
External thermometers they are also found on gadgets, but they are still “a curiosity”. The first smartphone with a built-in thermometer was the Samsung Galaxy S4. The sensor turned out to be necessary to improve the work of the pre-installed S Health application.
Alas, external thermometers of mobile devices have a significant drawback - low accuracy. The data is distorted due to the heat emanating from the user's body and the insides of the machine itself. So far, the developers have not been able to solve this problem.
For the needs of the S Health application, another curious sensor was installed on the Samsung Galaxy S4 - hygrometer. This sensor measures the level of humidity, giving the user the ability to effectively control the indoor climate.
What sensors allow you to monitor your health?
A person who wants to lead a healthy lifestyle will not hurt to get a gadget that is equipped with the following sensors.
Pedometer (pedometer)
The function of the pedometer is to count the distance traveled by the user based on the number of steps taken. This function is also capable of performing the accelerometer, but the accuracy of its measurements leaves much to be desired. The pedometer as a separate sensor first appeared on the Nexus 5 smartphone.
Pulsometer (heart rate sensor)
The built-in heart rate monitor is one of the innovations of the Samsung Galaxy S5. Samsung developers felt that it was the heart rate sensor that the S Health program lacked in order for it to be considered a full-fledged personal trainer. Among users, the Samsung heart rate monitor has not yet become popular, because it is quite picky. To provide accurate data, the sensor needs close contact with a part of the user's body where blood vessels are shallow, such as the ball of a finger. Jogging while holding your finger on the sensor is a little pleasure.
Blood oxygenation sensor (SpO2 sensor)
This sensor determines the degree of oxygen saturation in the blood. It is present only on 2 Samsung smartphones (Galaxy Note 4 and Note Edge) and is “sharpened” for the S Health application. On devices, the SpO2 sensor is combined with a flash for the camera and a heart rate monitor. It is enough for the user to activate the corresponding application and put a finger on the flash for 30-40 seconds - after which he will see the measurement result as a percentage on the gadget screen.
Dosimeter
The Pantone 5 smartphone released in Japan is equipped with such a sensor. The function of the dosimeter is to measure radiation. For the Japanese, this function is important, because after the accident at the Fukushima nuclear power plant in 2011, they are forced to more closely monitor the radiation background. There are no smartphones with dosimeters on the European market.
Fingerprint and retinal scanners
Users who believe that the first appeared on the iPhone 5S are greatly mistaken. Phones capable of scanning fingerprints have been produced before. Back in 2004, the "" Pantech GI 100, equipped with similar technology, was sold. 7 years later, introduced the Atrix 4g model with a fingerprint sensor. In both cases, users reacted to the technology rather cool.
When Apple built the iPhone 5S Home button into the iPhone 5S in 2013, both experts and ordinary consumers applauded the Apple company. Apple was more fortunate with the era: in the "zero" the issue of the security of cashless payments was not so acute.
The fingerprint scanner relieves the user of the need to use digital passwords to protect data stored on the gadget. Passwords are easy to crack; it is much more difficult to deceive the fingerprint sensor (although it is also possible).
Now it has become fashionable to install fingerprint scanners in smartphones. This technology is used not only by long-term market leaders - Samsung, Apple,. However, this technology became discussed only after Samsung turned to it - Galaxy Note 7 installed iris scanner.
The sensor in Note is different from those found in smartphones from Chinese companies. Samsung's idea can be called revolutionary because the Note 7 has a camera that is responsible just for eye scan. The “Chinese” read information from the retina with a selfie camera.
The method used by gadgets from China is ineffective. The fact is that the eye must be scanned with an infrared (IR) beam, but on the front cameras, the IR spectrum, as a rule, is filtered - because it deteriorates. It turns out that Samsung is so far the only smartphone manufacturer that does not force users to make a choice between high-quality "selfies" and the security of personal data.
Conclusion
Every modern smartphone is equipped with at least 5 sensors. In flagship models, the number of sensors reaches the "damn dozen", and manufacturers are not going to stop there at all. IBM experts predict that as early as 2017, gadgets will have a sense of smell, thanks to which they will be able to warn the user, for example, of a high concentration of fumes and the presence of an influenza virus in the air. We are looking forward to innovations - after all, the continuation should be?
Windows 10 monitors each user - all his requests and location, smartphones are not even discussed - they show the route of the owner and the height (floor) on which he is located and knows geodata and your requests - and can also record your voice without your knowledge , take your photos, and send third parties your fingerprints and scanned retinas
Despite their modest size, modern smartphones are very complex devices with powerful multi-core processors, cameras with autofocus and optical stabilization, high-resolution screens with high ppi values. In addition, any smartphone is equipped with various sensors that make the use of the device more convenient, or, especially in top-end gadgets, expand their capabilities. In our material today, we will talk about sensors, which of them can be found in modern gadgets, as well as how and why they are used.
The first sensor that has become widely used in smartphones is accelerometer, which was also often called G-sensor. As its name implies, this sensor is used to measure the acceleration of the device along three axes. Obviously, there is acceleration only when the device moves or rotates in space, so the accelerometer cannot determine the position of a stationary smartphone. And this means that its accuracy, for example, in games, will be relatively low.
In order to offset this shortcoming of the accelerometer, together with it, in the vast majority of modern devices, including the most budget ones, gyroscope. Unlike an accelerometer, a gyroscope can determine the position in space (the angle of inclination along three axes) even of a stationary device. The error of a calibrated gyroscope in modern smartphones, as a rule, does not exceed 1-2 degrees. The gyroscope and accelerometer are widely used in many mobile games for control, as well as in other applications with a variety of tasks.
The next sensor, which can also be found in almost every smartphone - magnetometer. This sensor reacts to the Earth's magnetic field and thus allows you to determine the cardinal points. This, in turn, along with data about cell towers and Wi-Fi access points in the field of view, is used when navigating in the absence of a GPS signal. The magnetometer is a sensitive sensor, and therefore, with a smartphone with it, you can, for example, look for wiring in the wall if it is walled up shallowly - just download an application that will read the sensor readings.
Almost every modern smartphone also cannot do without proximity sensor. The sensor is an infrared emitter with a receiver, hidden under the front glass of the device. He can detect the presence of an object in front of him at a distance of about five centimeters. Thanks to this sensor, it is enough to bring the smartphone to your ear during a call - and the display will turn off automatically (as well as turn on if you remove the device); there is no need to use the power button for this. It is worth mentioning that some top Samsung smartphones use an advanced proximity sensor that performs the functions gesture sensor, which reacts to various movements of the hand above it.
Many smartphones, with the exception of budget models, are equipped with light sensors. The main purpose of this sensor is to determine the level of ambient light and adjust the brightness of the display backlight in accordance with it.
On this list of common sensors can be considered complete. As you can see, most smartphones have at least five useful sensors, but in more advanced gadgets you can find many other sensors. One of them - barometer. Despite the fact that it first appeared in the Samsung Galaxy Note smartphone a few years ago, it can still only be found in some devices in the middle and top segments. Like a magnetometer, a barometer helps the device to quickly navigate the terrain and catch the signal of GPS satellites. Of course, by downloading one of the many free applications, you can use the barometer for its intended purpose - to find out atmospheric pressure in pascals or millimeters of mercury. It is also possible to use a barometer as altimeter An instrument that measures altitude above sea level. True, the accuracy of its readings in this case is significantly affected by fluctuations in atmospheric pressure, but this is regulated by entering current weather data and a control altitude point for a particular area.
In the smartphone Samsung Galaxy S4 first appeared thermometer. The use of this sensor is more than obvious: using the pre-installed S Health application (however, you can also download one of the third-party programs from Google Play), the user can find out the ambient temperature. The same can be said about the humidity sensor - hygrometer, which also debuted with the Samsung Galaxy S4 and can be used with the S Health app.
A Hall sensor is used to operate Smart Covers, which automatically turn on the device's screen when opened. Like a magnetometer Hall Sensor reacts to a magnetic field, but, unlike the first, has a simpler principle of operation: it does not determine the magnetic field strength along several axes, but simply reacts to its amplification caused by the approach of a permanent magnet hidden in the cover.
Modern gadgets have long learned to perform the functions of a pedometer, but usually an accelerometer is used for this. One of the few devices with pedometer in the form of a separate sensor, the LG Nexus 5 smartphone has become. So far, such a sensor is a curiosity, but it will probably soon be used in other devices.
Another rare sensor - heart rate monitor. At the moment, a separate heart rate sensor can only be found in the Samsung Galaxy S5 and Samsung Galaxy S5 Active smartphones (not counting the smart watches of the same company running Android and Tizen).
A slightly more common sensor - Fingerprint's scanner, allowing you to quickly unlock your device without having to enter a password. To date, this sensor is used in the Apple iPhone 5S, Samsung Galaxy S5, HTC One Max and several other less common smartphone models. Nevertheless, the first device, the iPhone 5S, is rightfully considered the benchmark for its implementation so far.
On this, perhaps, a long list of sensors can be completed, but in the end we still left a completely outlandish sensor for a smartphone - dosimeter. It is known for certain that the Pantone 5 107SH released in Japan is equipped with it - probably, after the infamous accident at a nuclear power plant in the Land of the Rising Sun, they began to carefully monitor the radiation situation around.
As a small conclusion, we repeat: almost any more or less modern gadget is equipped with at least five different sensors. The absolute champion in terms of their number can be called the Samsung Galaxy S5, which, according to our calculations, has as many as 12 sensors. And how many sensors did you count in your smartphone?
Most Android phones have built-in sensors that measure movement, orientation, and various environmental conditions. These sensors will help control the device's 3D movement or positioning, or changes in the environment. For example, the weather app uses the phone's temperature sensor and humidity sensor to calculate the saturation point. Similarly, your app will use the travel geomagnetic field sensor and the accelerometer to find a specific destination. Various sensors on Android devices provide accurate and accurate data to other apps or directly to you.
If you think that your Android phone's sensors aren't working the way they should, you can always check if it's really working properly or not. So, how do you pinpoint what's wrong with your phone's sensors?
Whatever the problem, there are apps that can help you figure out the problem and fix it. Even if you don't have a specific problem, it may still be good to go through a small check-in on your phone to ensure the phone's health. Please note that your device may or may not support all of the sensors mentioned above. This article will list some of the more popular apps available for free to test the sensors on your mobile phone. Most of these applications include short test instructions for each sensor test.
The Android platform supports the following three broad categories of sensors:
Motion sensors
The motion force sensor measures acceleration and rotational forces. Such sensors include accelerometers, gravity sensors, gyroscopes, and rotational vector sensors.
Environmental sensors
The environmental sensor measures various environmental parameters. Examples of environmental sensors are barometers, photometrics, and thermometers.
Position sensors
The position sensor measures the physical position of the device. attitude sensors and magnetometers are examples of position sensors.
Now, before we continue, let's take a quick look at some of the main sensors, what they do and what to do to test these sensors. Later we will tell you about applications that can automatically run sensor tests.
Gyro Sensor
The gyroscope is used to measure 6 directions at the same time. This allows the device screen to rotate from portrait to landscape. You can tilt your phone slowly to check if the gyroscope sensor is working.
Accelerometer Sensor
The accelerometer determines the orientation of the phone and measures the acceleration of gravity, including along three axes. You can turn your phone slowly to check if the accelerometer sensor is working.
light sensor
The ambient light sensor automatically adjusts the brightness of the screen according to the light intensity of your surroundings. You can test the sensor in a dark place and then by moving the phone to an area with bright light. If the screen light changes, it means that the sensor is working.
orientation sensor
The orientation sensor detects the direction status of your Android device. It checks for automatic screen rotation. Rotate your phone to check if the sensor is working properly.
Proximity sensor
The proximity sensor measures the distance of an object from the front of the phone. For example, your phone's screen turns off when you bring it closer to your ears during an active call.
temperature sensor
The temperature sensor checks the battery temperature of your Android device. If you surf the Internet using 3G or play HD games you will experience an increase in battery temperature whereby it becomes quite hot to the touch.
sound sensor
The sound sensor detects the intensity of the sound around you and gives you detailed information about changes in intensity.
Magnetic field sensor
The magnetic sensor measures the field of magnetic fields along the three axes of the phone. It is mainly used to determine the direction. Examples include the Google app and the Compass app. Just move with your phone to check the magnetic sensor.
Pressure sensor
The pressure sensor measures atmospheric pressure. It is used for weather forecasting and for measuring ambient temperature.
CPU-Z
The CPU-Z application collects all the necessary information about the phone and presents it in one window. Each option tab at the top of the window displays the corresponding details.
SOC tab- Displays the System on a Chip (SoC) Architecture details of your Android Smartphone as shown in the image below.
Device tab- Displays device details like model, manufacturer, hardware, screen size, total and used RAM, total and used memory, etc.
System tab- displays detailed information about your smartphone like model, manufacturer, board type, display resolution, android version installed, etc.
Battery tab- Displays battery charging status, level, power supply, status, technology, temperature and voltage, etc.
Thermal tab- displays a list of temperature readings. Since the load on the CPU causes your phone to heat up, it's good to check that the temperature doesn't cross 60°C as this indicates a malfunction of the device. This sensor may not be available in all device models. If it is missing, then the tab will not display any values.
Sensors tab- displays the values of the sensors supported on the device. You can play with your phone to check if individual sensors are working; for example, tilting the phone to check the gyroscope or moving the palms across the screen to check the proximity sensor, etc. If the CPU-Z readings change in response to your actions, then the sensors are fine and working. If you still feel that the sensors are not functioning properly, then you need to check and compare the values with another similar model or device.
Sensor Kinetics
Sensor Kinetics allows you to view, monitor and understand the behavior of all the standard sensors installed on your phone. You can change the delay setting or enable or disable specific sensors. This application demonstrates the use of each of the sensors available on the phone. Thus, you can easily check the sensors in your phone. Each sensor is attached to a viewer diagram with raw and processed data. It also includes documentation with easy to understand examples on how to test each of the sensors on the phone.
Sensor test
Testing the Sensor app is designed to detect and test the functionality of each of the sensors that are available on your phone. It displays default sensors and displays real time data and information about each sensor. It also displays vendor, maximum range, resolution and absorption current for each sensor.
Sensor Box for Android
Sensor Box for Android app is a good looking app with impressive graphical presentation. It detects all sensors that are available on your Android device. The application displays all sensors and a corresponding message appears if the selected sensor is not supported by your phone. This app only detects sensor changes, if any, and displays the values. It may not show the correct temperature, proximity, light and pressure readings unless there is some change.
phone tester
The phone tester app not only checks the sensors on the phone, but also checks the health status of hardware devices, Wi-Fi, telephony, GPS, touch, battery and system information. It also checks for ambient temperature, humidity, step detector, heart rate monitor and fingerprint sensor - as long as it is supported by your device. A Pro An app version is also available which displays additional information such as phone memory, processor speed and SD card memory.
AndroSensor
AndroSensor supports all sensors that an Android device can have, but only displays real-time sensor details for those supported by your device. Detailed information is displayed in graphic and text format. This application also allows you to save sensor data to a CSV file.
Programs and options Others
In addition to the apps mentioned above, there are many other apps available for free from the Google Play Store. All these apps will help you in testing phone sensors. Some of the apps that are worth mentioning are MultiTool sensors, Sensor Checker and Advanced Sensor Checker. You can install and try several applications and see if it provides you with the information that you were looking for.
If you are using a Samsung phone, please dial the secret code * # 0 * # to perform a phone test without having to install any additional apps. Select the sensor tab from the screen that is displayed and follow the instructions to check the supported sensors on your phone.
If you have any questions about this topic, please feel free to ask in the comments section. We at TechWelkin and our reader community will try to help you. Thank you for using TechWelkin!
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