magnetometer in phones

Source: Basic working principle of magnetometerThis article is so good that I can't help but turn around.This article explains in detail the basic working principle of magnetometer, the cause of interference and how to calibrate, how to use the magnetometer and inclination sensor.Original address: http://www.dzsc.com/data/html/2010-11-29/87454.html The electronic compass is an important navigation tool whic

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

Mobile phones have now reached the 3G era. Smartphones are becoming increasingly popular. Because mobile phones are becoming more and more powerful, many friends are at a loss when choosing a smartphone and do not know which operating system to choose. This article describes the advantages and disadvantages of Linux operating system mobile phones, allowing you to

, the system emits a broadcast with a value of Android.provider.Telephony.SMS_RECEIVED, which is the broadcast to listen to. A Smsbroadcastreceiver instance is then created. Then call the Registerreceiver () method to register the broadcast, where Smsbroadcastreceiver instances and Intentfilter instances are passed in, This way the Smsbroadcastreceiver will receive a broadcast when the system receives the SMS.Note that this inside reads SMS, so need to add read SMS permission. Just add some perm

(temp-1 ); } // I-= lowbit (I ); I = I (I-1 ); } Return ans; } Void Update (int I, Int J, int num) { Int temp; While (I { Temp = J; While (temp { C [I] [temp] + = num; // Temp + = lowbit (temp ); Temp = (temp | (temp-1) + 1; } // I + = lowbit (I ); I = (I | (I-1) + 1; } } Int main () { Freopen ("sum. In", "r", stdin ); Freopen ("sum. Out", "W", stdout ); Int x1, x2, Y1, Y2; While (scanf ("% d", Q )! = EOF) // multiple case Input { I

Unity is related to mobile phones. It is related to unity mobile phones.Reprinted please indicate the source: http://blog.csdn.net/u010019717 More comprehensive content please see my game pretty cool address: http://www.unitymanual.com/space-uid-18602.html Windows Phone Application and Store Image, Icon Sizes Application Image Sizes FlipCycleTileLarge-> 691 × 336FlipCycleTileMedium-> 336 × 336FlipCycleTileSmall-> 159 × 159IconicTileMediumLarge-> 1

Google's services must be obvious to all, and they are really excellent. Since mobile devices such as mobile phones can greatly facilitate our lives, why not enjoy Google's services on mobile phones. However, most of Google's services are on the computer. What services can we enjoy on our mobile phones? Let's take a look at the 10 Google services that can be used

We have 10 misunderstandings about mobile phones and 10 misunderstandings about mobile phones.What's mysterious about mobile battery? Or make you desperate? In order to allow our mobile phones to take longer, users have tried many strange ways to improve battery endurance. However, what we hear may not be true. The following are our 10 misunderstandings about cell phone battery: A4d2fffec1945c1.jpg_600x600.

Using the dlna function, you can connect wireless networks including personal PCs, consumer appliances, and mobile devices to wired networks.Formats supported by dlna:Image: jpeg png, GIF, TiffAudio: lpcm AAC, AC-3, ATRAC 3 plus, MP3, wma9AV: MPEG2 MPEG-1, MPEG-4, AVC, wmv9By using the mobile phone dlna function, you can wirelessly play a video from a mobile phone to a computer player, or directly play the video from a mobile phone. I have tried several mobile

HTC is currently making mobile phones for Google and is expected to be officially on the market by the end of 2007, according to news from handset component manufacturers. The news also said that at the end of the year, Google mobile phone shipments can be as high as 1 million, these handsets will be launched in the global market in 2008. It is reported that the Google mobile phone will support the Texas instrument 3G platform and edge platform, but d

Enables quick start of Android virtual phones and Quick Start of android phones There are countless examples of how to enable quick start of an Android Virtual phone by enabling the "Intel Virtual Technology" (Intel virtualization Technology) feature of BIOS, but most of them are not very easy to operate and are not clear, I configured the configuration on the t0000p machine today. The steps are summarized

Blog beautification (3): mobile phones browse blogs perfectly, and mobile phones browse blogs. This article is based on his blog The browsing effect of the blog garden on the mobile phone is not very good, so let's modify it in two steps. Step 1: Add js Code to the top html code 1 Step 2: Modify css code You can use Google's f12 browser to browse the Mobile Phone mode and then modify it. 1 @ media screen a

I bought some mobile phones, such as Samsung, motorcycles, and domestic mobile phones. Basically, I cut down some of Google's services Gmail, calendar, and Google Play e-markets, and I feel very uncomfortable, after all, Google's services are very useful, especially for many Gmail contacts. Synchronize to the mobile phone, so we will give you a way to install these apps on the mobile phone. The simplest met

Obtain basic information about android phones and basic information about android phones.Java code /** * Get the current available memory size of android */ Private String getAvailMemory () {// gets the current available memory size of android ActivityManager am = (ActivityManager) getSystemService (Context. ACTIVITY_SERVICE ); MemoryInfo mi = new MemoryInfo (); Am. getMemoryInfo (mi ); // Mi. availMem; available memory of the current syste

"What cell phone do you use now?" "Nokia." Well, the last one was Motorola. "5 years ago, it was a question-and-answer model that people used. No need to explain, we also understand, ask each other and interested in the mobile phone brand. "What cell phone do you use now?" "Android, but I still want to buy a iPhone4." Now, the new generation of thinking mode is no longer based on the brand of mobile phones, but more on the operating platform of mobile

Flash Animation Last November I attended the Macromedia MAX Convention in New Orleans, and when I got home, I felt exhausted. I've learned a lot about Macromedia's progress in integrating Flash technology into mobile devices, and this integration can give mobile users a rich and compelling experience that is as impressive and personalized as the browser experience. The first time I saw something really impressive on my mobile phone, it was a lot to the phone itself. At the conference, Macromedia

Description Suppose the fourth generation mobile phone base stations in the Tampere area operate as follows. The area was divided into squares. The squares form an s * s matrix with the rows and columns numbered from 0 to S-1. Each square contains a base station. The number of active mobile phones inside a square can change because a phone was moved from a square to another or a phone is switched on or off. At times, each base station reports the chan

　　Mobile Phone How do I transmit data without a data line? Data lines can be used to transmit data and information in addition to charging. The same data line is not a valuable item, who will not buy more, buy a lot of useless, and two different mobile phones, especially the Apple Android one of the users, holding two different types of data lines have been found to be very troublesome. So many people are the situation: the company's home with each

Test Instructions: Within a s*s square, there are two operations1 X y A is at (x, y) this point plus A2 X1 Y1 X2 Y2 query (X1,X2) to (Y1,y2) the number of phones in this rectangular rangeAnd the boundary of the data is also the beginning of the 0 with a tree array to add a processingFor the rectangular area, a small rectangle with a large rectangle to cut three boundariesAns=query (x2,y2)-query (x2,y1-1)-query (x1-1,y2) +query (x1-1,y1-1);4352k547ms#i

; T >>N) - {Wuyimemset (NUM,0,sizeof(num)); the while(Cin >>t) - { Wu if(T = =3) Break; - Else if(T = =1) About { $scanf"%d%d%d", x1, y1, d); -x1++, y1++; - Add (x1, y1, d); - } A Else if(T = =2) + { thescanf"%d%d%d%d", x1, y1, AMP;X2, y2); -x1++, y1++, x2++, y2++; $cout1)-SUM (x1-1, y2) + SUM (x1-1, Y1-1)) Endl; the } the } the } the return 0; -}POJ-1195 Mobile