exploring arduino

(F, low); digitalwrite (G, high ); delay( 300); digitalwrite (A, high); digitalwrite (B, high); digitalwrite (C, high); digitalwrite (D, high); digitalwrite (E, high ); digitalwrite (F, High); delay (300); // fully bright digitalwrite (A, high); digitalwrite (B, high); digitalwrite (C, high); digitalwrite (D, high); digitalwrite (E, high); digitalwrite (F, High); digitalwrite (G, high); digitalwrite (H, high); digitalwrite (D1, low ); digitalwrite (D2, low); digitalwrite (D3, low); digitalwrite

The entire tutorial makes an HTTP client for uploading Yeelink data points.1 Get Account http://www.cnblogs.com/imfanqi/p/4419915.html2 Code Tutorial http://www.windworkshop.cn/?p=1217#include 　　Arduino IDE for ESP8266 Tutorial (iii) HTTP client

(Exception e) {recvmessageclient = "Receive exception:" + e.getmessage () + "\ n";//message Wrap msg = new messages (); Msg.what = 0; Mhandler.sendmessage (msg); }} Handler Mhandler = new Handler () {public void Handlemessage (message msg) {super.handlemessage (msg); if (Msg.what = = 0) {Toast.maketext (Getactivity (), Recvmessageclient,toast.length_short). Show ();//refresh message mechanism} else if ( Msg.what = = 1) {try {String result = recvmessageclient; Toast.maketext (Getactivity (), R

Analogread (), and the detected voltage (0-5V) is mapped to a digital (0-1023) by a number-to- analog conversion technology (ADC) . If the output of the piezoelectric element exceeds a certain limit value (indicating that the vibration has reached a certain strength) your board will be output through the serial port "detected vibration." "This string to the computer. You need to open the serial monitor to see the effect. complete the hardware device required for this example An

Bh1750fvi is a digital ambient optical sensor IC produced by Rohm semiconductor in Japan. Its main features include: I2C digital interface, supporting a maximum rate of 400 kHz Illuminance) Measurement Range: 1 ~ 65535 Lux, minimum resolution Power down Shielding illumination variation interference caused by 50/60Hz Mains Frequency Two I2C addresses are supported and selected through the ADDR pin. Small measurement error (maximum precision error +-20%) Circuit connection Because the modu

); Kinect = new Simpleopenni (this); Kinect.enabledepth ();}Fourth step: Under 3D rendering, draw the point cloud and the frustum (that is, the 3D area visible on the screen. The Kinect frustum means the area that Kinect can see in space. ）void Draw () { kinect.update (); Background (0); Myorbit.pushorbit (this); Drawpointcloud (); Kinect.drawcamfrustum (); Myorbit.poporbit (this);}Fifth step: Finish plot point cloud functionvoid Drawpointcloud () { int[] Depthmap =

Summarize the experience of wireless module debugging. There are already people on the Arduino who have made the library of this module, but according to the manual written also has a certain reference significance.Wireless module is one of the modules that I think is more difficult to debug, because it is a module of mutual interaction, communication failure has two reasons, can not be found from a single code. The code is written, and all sorts of i

I. List of components Arduino Pro Mini GY-30 Second, the wiring Using IIC communication mode, GY-30VCC connect +5v,gnd grounding. GY-30 SDA, SCL respectively A4, A5 Third, the source code #include

Bo Master's first article, Hope Toto support. 1, the first is the wiring. VCC corresponds to Arduino Development Board 5V GND Connection Gnd TXD Connect TX Rxd receiving RX GPI00 Connect Gnd (This is uploaded when used, upload must be grounded, otherwise it will cause upload failure) Wiring is not very simple. Attach a picture 2. Then download the Esp8266 extension library. Open the IDE and click File--preferences, as shown in Fill this URL into t

the problem may occur. The system installs the basic use software, Sogou Input method, Smplayer,tweak and so on, the robot software has the gazebo, has loaded the necessary model storehouse, avoids because the network problem appears the space map the situation; V-rep's edu version, install Rosby example and Learningros for Robotics Programming-second Edition all the libraries, including Opencvnon-free. All software and data in the mirror are copyrighted to the original author. http://wiki.ro

Exploring in IE adding entries to the standard context-related menu (Author: Green Apple Studio compiled February 08, 2001 13:28) This article describes how to add a menu item to its standard context-related menu when executing a URL-specified script in Microsoft Internet Explorer. If you want to add menu items to the standard context menu of Internet Explorer, you should be familiar with the registry and context-sensitive menus. For more information

deal with it:function deepCopy(obj, parent) { let result = {}; let keys = Object.keys(obj), key=null, tem=null, parent_=parent; if (parent_) { if (parent_.originalParent === obj) { return parent_.curentParent; } parent_ = parent_.parent; } for(var i=0; iIn this way, a deep copy function is done, the same applies to arrays, after all, the array is also a special object, of course, the use of third-party libraries in real projects may be more conveni

org.springframework.beans.factory.annotation.autowiredannotationbeanpostprocessor$ Autowiredfieldelement.inject (Autowiredannotationbeanpostprocessor.java:585) ... -Moreprocess finished with exit code1Spring's start-up process reads the configured XML, registering all beandefinition, which is the preparation process. After the preparation is Beanfactory's refresh, this time will be annotated processing, that is, beanpostprocessor.This includes parsing the various annotations contained in th

View | refresh Exploring the refreshing mechanism of materialized views Author:kamus Mail:kamus@itpub.net DATE:2004 year October Today to build a historical query server for customers, with oracle8i snapshot implementation, that is, the 9i materialized view. I did a bit of trace and looked at how Oracle was working backstage at the time of the refresh. Pre-preparation, using the Dbms_support package, this package is not installed by defa

video has led to dramatic changes in the computing industry, From social networking media and amateur digital theaters to improved training and educational change. The tools for decoding and using digital video are widely used every day, but video analysis requires tools for encoding and analyzing uncompressed video frames, such as Open Computer Vision (OpenCV). An easily accessible and powerful digital Video codec tool is FFmpeg; for static images, GNU image processing (GIMP) is useful (see Re

1 Introduction Agile development methodologies are becoming increasingly popular, while most "agile" experts and analysts are discussing agile in isolation, which means ignoring the system "architecture" (Kirk Knoernschild is an exception, he wrote a book called "Java Application Architecture" Books to illustrate this idea). This omission is surprising considering that "agile" is an important attribute or attribute of the underlying entity. An entity has an "agile" feature that must have a high

var addEvent = null has been declared at the top of the function; // 5) return fn ;})();Additional reading The topic list of this article is as follows: How should we understand the working principle of the JavaScript engine? JavaScript exploration: the importance of writing maintainable code JavaScript exploration: exercise caution when using global variables JavaScript exploration: var pre-parsing and side effects JavaScript exploration: for Loop (for Loops) JavaScript exploration: for

have more comments than the code. The most important habit, however, is to keep comments updated in a timely manner, because outdated comments are more misleading than those without comments.Additional reading The topic list of this article is as follows: How should we understand the working principle of the JavaScript engine? JavaScript exploration: the importance of writing maintainable code JavaScript exploration: exercise caution when using global variables JavaScript exploration: var

(foo. hasOwnProperty (I) {console. log (I) ;}} in the preceding example );}} The code of this version is the only correct method. Because hasOwnProperty is used, only moo is output this time. If hasOwnProperty is not used, this Code may cause errors when the native Object prototype (such as Object. prototype) is extended. Conclusion: We recommend that you use hasOwnProperty. Do not make any assumptions about the code running environment, or whether the native object has been extended.Summary Th

ORACLE space management experiment 1: exploring the structure of the data file header under LMT tablespace management and the record directory (?) in the bitmap Area (?) [] The experiment is divided into two steps: 1. the local tablespace managed by LMT. The structure analysis of the data file during ASSM automatic segment management ORACLE11G: 0 operating system block, 1-2 is the file header, and 3-127 is the bitmap information. What is stored at and