dji 2

This article wants to introduce the development environment under the basic DJI SDK iOS, but DJI has given a very detailed tutorial on how to run its demo, the following URL:Https://dev.dji.com/cn/guideHere I summarize the steps to build a new project:Step 1: Register an AppThe ID and app key are important. DJI has made restrictions here.For iOS development, the

Before you write this development tutorial, say something first.The first thing to declare is that I am not an employee of DJI, but a fan of DJI aircraft.I've been looking forward to launching the SDK after DJI's Phantom. Previously the first Parrot AR Drone has launched the SDK. But its aircraft performance itself and Phantom is not a magnitude, and the SDK is not updated after the launch, now look at the

In the beginning, I was very excited to see my first blog about DJI's SDK. Unfortunately, after I studied the SDK in depth, I found the following unforgivable restrictions: 1 Not enough GPs can not use the ground station and flight control functions; 2 DJI directly does not provide an interface that can be used to control phantom2 throttle size. Phantom3 and Inspire 1 seem to control the throttle, but Tak

Asynchronous thread activation, the data that should be shared by the asynchronous thread is set to the local variable of the function1) BugActivation to use all data in the official demo test is no problem, but one in their own program to run the report the following error　　My code was glued from the official demo, and the only thing that changed was to change the UI data into my own data, add header files, and declare some variables. The value of Sdk_version is the official own macro definitio

DJI official website video loading animation by css3 animation, css3 Some time ago, when I visited the DJI official website, I found that there was a very good pre-loaded animation, so I took it without a face. If you are interested, you can copy your shoes. Thank you to the front-end engineering masters of DJI.When using it, you must pay attention to compatibility. modern browsers such as chrome, ff, edge,

Dji Data Transmission considerations When using the DJI Mobile SDK and the DJI onboard SDK for data transmission, the demo from mobile device to onboard device was quickly implemented in DJI. But from onboard to mobile but tried many times can not be achieved, later, read a blogger's article, finally found the reason.

Opencv experiences (1) The second chapter of learning opencv mainly introduces some common and interesting functions and data types, so that students at the beginning are more interested in image processing, although I do not understand the internal experiment of the function and the meaning of some defined constants, I am still very happy after learning Chapter 2. At least I know some basics of image processing, such as contour processing; Knowledge

Using formula (n-1) 3=N3-3n2+ 3n-1 Set S3 =13+ 23+ 33+ 43+... + N3 And S2 =12+ 22+ 32+ 42+... + N2 And S1 = 1 + 2 + 3 + 4 +... + n D: S3-3S2 + 3s1-n = (1-1) 3+(2-1) 3 +(3-1) 3+ (4-1) 3+... +(N-1) 3= S3-N3 Therefore, 3S2 = 3s1 + N3-N Bring S1 = n (n + 1)/2 to the upper formula, which can be: S2 = n (n + 1) (2n + 1)/6 That is, 12+ 22+ 32+ 42+... +

Modulo 2 is a binary algorithm, the core ofCRC calibration technology, so before we analyze the CRC algorithm, we must grasp the rules of modulo 2 operation. In the same way as arithmetic, modulo 2 also includes modulo 2 plus, modulo 2 minus, modulo

Public String gefilename (string type){// 4 + months 2 + days 2 + hours 2 + minutes 2 + seconds 2 + milliseconds 3 + 8-bit random numberString year = datetime. Now. year. tostring ();String month = datetime. Now. Month. tostring ();If (month. Length String day = datetime. No

IO redirection:Output REDIRECT:>features: Overwrite outputOutput REDIRECT:>>Features: Append output# set-csuppresses overwrite output redirection to existing files;You can use the force overwrite output at this time: >|# set +cTurn off the above featuresError output stream redirection: 2> 2>> will only output the wrong information to the specified locationmerge Normal output stream and error output stream:(

page's logic. The JSP is compiled into a servlet (the JSP compiles to a servlet), as we have defined clockservlet, which is equivalent to writing the HTML section and evaluating the Java section (that's equivalent to writing Out the HTML portions,and evaluating the Java portions). In a sense, JSPs is just another way to write the servlet code.JSPs is often criticized for being too powerful. Because the entire Java language can be obtained from a JSP, there is a risk that the business logic may

The Art of Atitit MIDI Art Tech MIDI Directory 1. MIDI 1 2.4 Constituent Structure 2 2.1.▪ Sequencer 2 2.2.▪ Interface 2 2.3.▪ standard common MIDI standard by GM, GS, XG 2 3. List of 128 Instruments 2 3.1. Category Music song category "Children's song popular songs 3 3.2.

2-2. Next is the time (15), and 2-2 is the time 15 Sometimes people use four digits to represent a time. For example, 1106 represents. Now, your program calculates the end time based on the start time and the elapsed time. Read two numbers. The first number represents the current time with four such digits, and the sec

SQL Server 2: full-text search (2) Here we will mainly talk about the contains function used in full-text search, extract articles from others, and share it with you. Suppose there is a table named students, where the address is a column for full text search.1. query student addresses in Beijing Select student_id, student_name From students Wherecontains (address, 'beijing ') Remark: Beijing is a word that

protected] "0 "; Cale. A1 = 0; Cale. A2 = 0; Cale. Op = 0; } -(Ibaction) but1 :( ID) sender { If (Cale. Op! = 0) { Cale. A2 = Cale. A2 * 10 + 1; Self. Label. Text = [nsstring stringwithformat: @ "% F", Cale. A2]; } Else { Cale. A1 = Cale. A1 * 10 + 1; Self. Label. Text = [nsstring stringwithformat: @ "% F", Cale. A1]; } } -(Ibaction) but2 :( ID) sender { If (Cale. Op! = 0) { Cale. A2 = Cale. A2 * 10 + 2; Self. Label. Text = [nsstring stringwith

Today I learned the Example 2-2 of "Advanced Programming in UNIX environment", but I am very confused. I created a directory named sample2_2, put the source code in it, compile it, and generate the sample2_2 file. Then copy pathconf. sym and sysconf. sym to this directory. Run the following command: ./Sample2_2 pathconf. sym The result is as follows: No symbol for arg_max Arg_max = 2621440 Max_canon

Int W [2] [3], (* PW) [3]; PW = W;Which of the following is false?A. * (W [0] + 2)B. * (PW + 1) [2]C. Pw [0] [0]D. * (PW [1] + 2) This evening I carefully studied the multi-dimensional array of C and the pointer to the multi-dimensional array (in the final analysis, these two items are completely consistent)The above

There are four threads of 1, 2, 3, 4.The function of thread 1 is output 1,The function of thread 2 is output 2, etc... There are now four file ABCD.The initial is empty.Now you want four files to appear in the following format:A:1 2 3 4 1 2 ....B:

2-11.A program with a text menu. Write a program with a text menu. The menu items are as follows: (1) take the sum of the five numbers; (2) Take the average of the five numbers... (X) and exit. The user makes a selection and then executes the corresponding functions. The program ends when the user selects to exit. This program is useful because you do not need to restart your script over and over again duri