how to calibrate accelerometer

iOS New Accelerometer Event"iOS New Accelerometer event "1, iOS5.0 before, you can use Uiacceleration to monitor the accelerometer event.2, after the Bug iOS5.0, Uiaccelerometerdelegate has been depreacated, as follows:　　Deprecated is not to say, but it means that in the future version will be deleted, so if you do not want to update knowledge, use Uiacceleromete

Cocos2d-x event distribution mechanism-accelerometer event monitoring, cocos2d-x Accelerometer Event monitoring mechanism In the previous article introduced the cocos2d-x touch event mechanism, this to introduce the next game is also often used in the accelerator events, these are the game is often used. An important input source on a mobile device is the device direction. Most devices are equipped with an

Tags: trait is Ted systems axes osc eset Android noteOperating system: Windows8.1 Graphics: Nivida gtx965m Development tools: Android Studio 3.0.0 | Cardboard 1.0 Before discussing the implementation in depth, it is necessary to understand the relationship between the IMU sensor and the coordinate system of the Android system and the relationship transformation, so that the coordinate system can not be mixed in the implementation and application. In this loan opportunity to translate Nvdia an

Coremotion is a framework dedicated to motion, which contains two parts of accelerometers and gyroscopes, before iOS4 the accelerometer is the Uiaccelerometer class responsible for collecting data, Now generally use coremotion to deal with the acceleration process, but because Uiaccelerometer is relatively simple, the same people are used. Accelerometer is determined by three axes, the user's most common op

ObjectiveBefore someone made a mobile phone anti-theft app through the iphone's accelerometer, and it was through this anti-theft app to get Angel investment. From then on gorgeous turn, the company develops the vivid. Although this project is not very good at the end, but it is really a nice idea.Maybe you don't know, every iphone has an accelerometer built in. This allows the built-in

Transfer from http://blog.csdn.net/a345017062/article/details/6459643A gyroscope is an internal gyroscope, whose axis is always parallel to the initial direction due to the gyro effect, so that the actual direction can be calculated by deviations from the initial direction. The gyroscope in the cell phone is actually a very sophisticated chip with ultra-tiny tops inside.Accelerometers are used to detect the size and direction of the acceleration that the phone is subjected to, while the mobile p

Final:Cocos2d-x, the inheritance structure of layer layers:As you can see from the image above:several direct sub-categories of emphasis are: Control, ScrollView, Menu, Layercolorwhere Layercolor can make a layer color the subclass of control, which is all the classes that interact with the user, such as: button, slider, etc.0. Cclayer OverviewA game can have a lot of scenes, each scene may contain more than one layer,The layers here are generally cclayer objects. The cclayer itself has almost n

Acceleration SensorThe acceleration sensor of the mobile phone is calculated by the offset of the x, Y, z three axes.The basic API in code is mainly focused on the Accelerometer typeThe main thing is to use this type of object to capture readingchanged events to monitor the change in acceleration values.X, Y, Z acceleration sensing values1 StackPanel>2 TextBoxx:name= "Txtx"Header= "X:"/>3 TextBoxx:name= "Txty"Header= "Y:"/>4

example a delegate to the accelerator, the program example for declaring an example is as follows: UIAccelerometer *accelerometer = [UIAccelerometer sharedAccelerometer]; You can set the update rate of the instance. You can use the following program to set the update rate, which indicates that the update is performed once every 30 seconds. accelerometer.delegate = self;accelerometer.updateInterval = 1.0f / 30.0f ; After setting the delegate, you m

This paper introduces the characteristic principle and application scenario of the-LIS3DH accelerometer sensor for wearable devices. ST's LIS3DH is widely used in smart wearable products such as smart hand loops and smart step shoes.LIS3DH has two ways of working, one of which is that it has built-in algorithms to handle common scenarios such as standstill detection, motion detection, screen flipping, weightlessness, position recognition, click and do

Memsic2125 Acceleration Meter MEMSIC2125 is a two-axis accelerometer that can measure the acceleration of positive or negative 2g in two directions (g represents the gravitational acceleration). Its pin design is simple: Only two data output pins, one for the x axis and one for the Y axis. Its data output pins will output different pulse widths according to the size of the acceleration (do not know what the pulse width is please see this article). The

Source Address: http://www.geek-workshop.com/thread-1695-1-1.htmlThis post is translated from the IMU (accelerometer and Gyroscope devices) guide used in embedded applications.This article mainly introduces the mathematical models and basic algorithms of accelerometers and gyroscopes, and how to fuse the two, focusing on the discussion of algorithms and ideas.IntroductionThe purpose of this guide is to introduce inertial MEMS sensors, especially accel

An accelerometer is a sensor that can sense the linear acceleration of a device. It is widely used in guidance and control of aviation, navigation, aerospace and weapons. There are many types of linear accelerometer. Currently, three-axis accelerometer is used in mobile devices such as IOS. It can be used to sense the linear acceleration changes in the direction

Cocos2d-x mobile game mobile IOSAn accelerometer is a sensor that can sense the linear acceleration of a device. It is widely used in guidance and control of aviation, navigation, aerospace and weapons. There are many types of linear accelerometer. Currently, three-axis accelerometer is used in mobile devices such as IOS. It can be used to sense the linear accele

Recently before the improvement of the visual fixed-point algorithm, there was only one location ring, now ready to cascade a series of speed loop, but to solve the drone translation speed is still quite a headache, the online information is very small, we need to move our own brain to solve this problem.The first step is to measure the level of speed, the traditional method is GPS, I designed the UAV in the application scene of the GPS signal although there is, but not so stable, followed by th

Summary You can calibrate the lithium-ion batteries on iBook, PowerBook, MacBook Air, or MacBook Pro for optimal performance. The battery has an internal microprocessor that provides an estimate of the battery power consumption during battery charging and discharging. Battery needs to be recalibrated from time to keep the battery time and percentage displayed on the screen accurate and to ensure the highest battery efficiency. You shall execute this p

HP HP Designjet Z2100 How to do color calibration 1. Do not use transparent or translucent paper to calibrate colors. It is recommended that you use paper or paint to get the best quality. Make sure that the transparent cover is turned off because if there is a strong light source near the printer during the alignment of the printhead, the alignment will be affected. 2, through color calibration, your printer can be based on the specific

One, the "filter" of the dataThe raw data obtained directly from the accelerometer is often not used directly, but some disturbing data needs to be removed, a process called "filtering". The word "filter" is derived from the process of radio signal processing in radio technology. In fact they are the same from the mathematical point of view, they are some kind of sampling signal, this "filtering" process is very complex, to achieve "filter" by Fourier

mtoast;mtoast = ToaSt.maketext (Shakeactivity.this, "hehe, success!. \ n Try it again! Mtoast.show (); Mvibrator.cancel (); Mshakelistener.start ();}}, 2000);}); Define vibrate public void Startvibrato () {mvibrator.vibrate (new long[] {500, 200, 500, 200},-1);//The first {} Inside is the rhythm array,//The second parameter is the number of repetitions, -1 for non-repetition, non-1 to start repeating} @Overrideprotected void OnDestroy () {Super.ondestroy () from the specified subscript of patte

BIN CHEN May 23, 2012, Evening 10:34 12 Some mobile phone players and enthusiasts are interested in the components of some mobile phones and even want to know how they work. Now, both mobile phones and tablets are basically built-in acceleration sensors to identify the direction of the device's rotation. Bill Hammack, an engineer from Illinois University, briefed us on how this acceleration sensor works and is not a tedious sermon, but an animated film to help explain it.Bill Hammack used Andr