how to calibrate accelerometer

In the Android2.3 gingerbread system, Google offers 11 types of sensor supply layer usage.? 1234567891011 #define SENSOR_TYPE_ACCELEROMETER 1 //加速度#define SENSOR_TYPE_MAGNETIC_FIELD 2 //磁力#define SENSOR_TYPE_ORIENTATION 3 //方向#define SENSOR_TYPE_GYROSCOPE 4 //陀螺仪#define SENSOR_TYPE_LIGHT 5 //光线感应#define SENSOR_TYPE_PRESSURE 6 //压力#define SENSOR_TYPE_TEMPERATURE 7 //温度#define SENSOR_TYPE_PROXIMITY 8 //接近#define SENSOR_TYPE_GRAVITY 9 //重力#define SENSOR_TYPE_LINEAR_ACCELERATION 10/

in turn.1 Acceleration sensorThe accelerometer is also called G-sensor, which returns the acceleration values for the X, y, and Z axes.This value contains the effect of gravity, in units of m/s^2.Put your phone flat on the desktop, the X axis defaults to the 0,y axis default 0,z axis default 9.81.Place your phone face down on the desktop with a Z axis of-9.81.Tilt the phone to the left and the x-axis as positive.Tilt the phone to the right and negat

Let's look at these 11 sensors in turn.1 Acceleration SensorThe accelerometer is also called G-sensor, which returns The acceleration values for the X, Y, andz axes. This value contains the effect of gravity, in units of m/s^2. Put your phone flat on the desktop,x -axis defaults to 0,y - axis default 0,z Axis default 9.81. Place your phone face down on the desktop with az axis of -9.81. Tilt the phone to the left and thex -axis as positive. Tilt the

I wrote an example of gravity sensing yesterday. I think this example is useful. I will share it with you: 1) Obviously, after ios4, you can use the coreMotion framework to add UIAccelerator for backward compatibility, [Html]# Import # Import @ Protocol IFAccelerometerDelegate -(Void) accelerateWithX :( NSNumber *) x withY :( NSNumber *) y withZ :( NSNumber *) z withTimeInterval :( NSTimeInterval) timeInterval;@ End@ Interface IFAccelerometer: NSObject {UIAccelerometer * _

Recently a quick look at the sensors of the Android system. The more commonly used is the accelerometer accelerometer, which can be used to achieve "shake a shake."At first, the accelerometer is the name itself to understand, that is, the measurement of acceleration, that is, if the phone is still, the accelerometer sh

Study on the feasibility of gravity induction gameA. Gravity sensing components in mobile phonesMany people know that the mobile phone has the function of gravity sensor, but what is gravity sensor is not very understanding. Gravity sensor is not a camera, people know how many pixels, not touch screen, people know whether it is capacitive screen or resistive screen, gravity sensor like shrouded in the fog of the valley, it is difficult to explore. The gravity sensing components are described in

This year is to do is photoelectric upright, the program is mainly referred to the official website above the Tsinghua program. The principle of what is not specific research, the scheme and the paper is very detailed.There are three main parts: 1 angle control, 2 speed control, 3 direction control. It also uses the complementary filter to calculate the angle and use the PID algorithm to control.The first is the angle control, using the gyroscope integral to calculate the angle, and because the

Cocos2DStudy NotesUIAccelerometerThe accelerator is the content to be introduced in this article.UIAccelerometerAcceleration is counted as an instance. Let's see the content.UIAccelerometerThe accelerator is used to detect the acceleration of the iphone on the x. y. Z axis. To obtain such calls: UIAccelerometer*accelerometer=[UIAccelerometersharedAccelerometer]; At the same time, you need to set its delegate. UIAccelerometer*

Now wireless control has become the mainstream of the field of electronic science, this time to teach you to do a mainstream mainstream-wireless control of the car, first to show you the final product demo Video:://v.youku.com/v_show/id_xmty2mzazndazng==.html?spm=a2h0k.8191407.0.0from=s1.8-1-1.2first, introduce the materials you need to use.:TPYBoardv102 Development Board two piecesCar Chassis OneLora Wireless module two piecesRechargeable Treasure One90,143 Pole Tube Two (why do you use it, bac

A lot of sensors are built into the phone, such as: light sensor, humidity sensor, temperature sensor, distance sensor, etc.The development of sensor-related things must use the real machineIn the spiral and accelerometer all two ways push and pull, push way is always detected, pulling the way is required to obtain the detection value/*Steps to use the accelerometer push:1. Create a campaign manager_mgr = [

Well, thanks to the recent development requirements for smart hardware, so the recent days to share the blog is roughly linked to intelligent hardware, like a piece of Bluetooth sharing, I believe that many readers have seen, then today I bring you the knowledge of the Android sensor introduction and use of methods, for the use of sensors , different versions of the Android phone may have larger hardware differences, but same, this article will be through the most common sensors, the infiltratio

follows it cannot know if an exception occurred (the only way to do this is by server). Second, this is not accurate. Once the NTP server goes down, the server that follows it will not be able to synchronize time. Unlike this, the NTPD is not only able to calibrate the computer's time, but also to calibrate the computer's clock. Third, this is not elegant enough. Because it is a jump, rather than m

pyjnius jpeg png kivyiv. code :First, import the key modules:Import kivykivy.require (' 1.8.0 ') from Kivy.app import appfrom kivy.uix.widget import widgetfrom Kivy.uix.label Import Labelfrom Kivy.core.window Import windowfrom plyer import notification, vibrator, TTS, email, accelerometerfrom kivy.cloc K Import ClockNext, set up the graph:#setup graphicsfrom kivy.config Import configconfig.set (' graphics ', ' resizable ', 0) #Graphics Fixfrom Kivy.core.window Import Window; Window.clearcolor =

vector then it is sped upSlightly by multiplying the vector length by 1.03. The maximum lengthOf the vector is capped at the max value passed into the method.Vector is not allowed to have a negative length. I 've also added a method to the vector2d class to scale the length of the vector. 123456789101112 - (void)scaleLength:(CGFloat)factor;{ length *= factor; if(length This method simply multiplies the vector length by the scale factor.When the length of the vector beco

I. Manual code and illustrations Ii. Process description 1, Angle calculation function description//============================================================================//function name: void Anglecalculate (void)//function return: none//parameter description: None//Function Summary: Body angle calculation. //============================================================================voidAnglecalculate (void) { //Reading AccelerometerMma8451_read (); //Read GyroscopeLs3g4200d_read (); //t