raspbian stretch

*image = [UIImage imagenamed:@ "button"];16 //Set background picture [Button setbackgroundimage:image forstate: uicontrolstatenormal];18 //Add button [Self.view addsubview:button];21}Run:As you can see, the effect is very poor. The reason is very simple, because the original size is 24x60, and now the entire picture is stretched to 150x50, the more serious is the 4 corners of the picture.Some people may immediately think of a solution, you call the artist to enlarge the picture

"Point Nine" is a special picture form in the application software development of the Andriod platform, the file name extension is:. 9.png The smart phone has the function of automatic horizontal screen, the same interface will be in the mobile phone (or tablet computer) in the direction of the sensor in different parameters to change the direction of the display, in the interface to change the direction of the interface of the graphics will be due to the long width of the changes resulting in

This is Meelo original play the Raspberry Pi series articleMaterials: Raspberry Pi (already connected to the power supply and inserted SD card to write the operating system) 1 laptop computers PuTTY Step 1: Open the Settings screenThe initial login Raspbian system will automatically open the settings of the interface, you need to make some simple settings according to the actual situation. If you are using Putty original login Ra

mode; (5) Photo time, set to 1 second; (6) image size, set to 640x480. The script will automatically take 78 photos, each of which will apply different special effect parameters. To execute this script, you only need to enter the following command line: $ python name_of_this_script.py Below are some samples captured. Small benefits In addition to using the raspistill command line tool to manipulate the raspicam camera module, there are other methods to use. Picamera is a python library tha

choose to install the standard release version. For regular users, the release is Raspbian, and other distributions are available, such as Openelec (XBMC Media Center) or arch Linux. # # Directory -[NOOBS] ()-[Install image] ()-[SD card (nyf://entry?itemid=1)] () ---------------------------------------- (4) Install the operating system image #安装操作系统镜像 This article explains how to install a tree-skinned system image onto an SD card. An additional comp

Raspberry Pi can be installed on a variety of operating systems, we are using the official Debian-based Raspbian. System Installation Method SeeInstall the system because I use a 7-inch HDMI screen, install the system if the configuration should not be able to cause a part of the right side can not be displayed, so on the Raspberry Pi official website Download Raspbian image, the image burned into the TF ca

At the beginning of the Raspbian, feel the system is good, is the resolution can not be adjusted, online to find a lot of solutions, tinkering for almost a day, still no solution.During the attempt to change several systems, such as RASPBMC, Xbian and so on, finally tried the next Pidora, found that pidora under the normal, but the resolution of 1024x768, rather than I this monitor 1440*900, so think of the relevant configuration modified under, can b

First components to be prepared:1. Raspberry Pi 3 Model B2, SD card one sheet3. Network cable and router4. ComputerRaspberry Pi PackagingRaspberry Pi FrontComponentsOne, SD card system writeFirst of all, download the Raspberry Pi system from the official website!Address: https://www.raspberrypi.org/downloads/Select Raspbian Downloadalso download Win32diskimagerWrite Raspbian system to SD cardSecond, install

Recently began to learn Python, the teacher let the deployment of the Python environment, deployed on the x86 platform is no pressure, think can not be a set of Raspberry Pi. Because using the Raspbian system and Debian is almost a problem when installing Mysql-python. Now record as follows:First Raspbian switch to root modeInstalling the Flask tool SetApt-get Install Python -setuptoolsEasy_install pipPip I

Raspberry Pi launches Laboratory equipment:Hardware preparation:实验主板一块（树莓派）；5V/1A电源一个（手机电源）；microUSB线一根；USB-TTL串口线一根（FT232RL芯片或PL2303芯片）。PC一台（Mac OS）；路由器Software Requirements:PC上的USB-TTL串口线配套的驱动程序PC上的串口终端软件：minicomPC上的SSH软件（Mac自带）交叉编译软件 Experimental steps:Hardware preparation:连接串口线：串口线黑线接地，白线接GPIO14，绿线接GPIO15，如下：Power supply supplied by mobile phone power supply下载一个img文件：[https://www.raspberrypi.org/downloads]插入SD卡到电脑上，将img文件写到SD卡中使用df –h 命令查看所有的挂载设备：为树莓派准备的SD卡的设备名为disk2s1利用dd 命令安装镜像：`sudo dd b

third-generation Raspberry Pi in power supply needs to be paired with a 2.5A USB charger. The author experience is the Raspberry Pi B and the two boards, through AV or HDMI can be output to any display, connect the mouse and keyboard, a complete computer was born. If you do not have idle monitor on hand, Raspberry Pi Board has reserved a CSI interface LCD screen, through NOTRO/FBTFT This open source project, can complete the implementation of Framebuffer drive, so that the Raspberry Pi perfect

Raspiban wheezy is pre-installed Python3 is 3.2.3, this tutorial lets you upgrade to 3.4.1 (currently the latest version).I used a B-plus Raspberry Pi, which was released in 2014-06-20 by Raspbian Wheezy.The entire Raspbian system is upgraded to the latest, and may require a reboot after the upgrade.1 sudo Update 2 sudo upgradeLet's do it in the home directory of the current user, go to this directoryCD ~th

Tags: Raspbian http requires div min password alt mic flowRaspberry Pi-MySQL installation linuxmysql Yesterday is a and tomorrow is a mystery, and today is a gift. Pre-orderMySQL on the Raspberry Pi raspberry the installation and on the Linux on the same, because the online tutorial is only a part of the description and encountered the situation, it is sorted down Installation Because you do not know what

-usb x 2,mini-hdmi x 1,40p In GPIO, MIRCO-SD (TF) x1 Video audio:1080p HD video output. Audio output via MINI-HDMI connector. STORAGE:MICROSD card. Operating System:linux, installed via NOOBS. Posted in Raspberry Pi | Post reply configuration Raspberry Pi Official Raspbian system support several sound card expansion boards of our store posted on November 24, 2015 Objective:This tutorial guides you to configure the Raspberry Pi's official system to u

Tags: span no install Linu target Date list development issuesRaspberry Pi is really a magical instrument ~ ~ Playing with the Raspberry Pi hardware is too much effort, so I still think of it as a tool for me to practice Linux, yesterday after trying to install the LNMP environment after the deployment of a THINKCMF (because the company's background is based on the CMF development, so you try to install the deployment), Results prompt for missing pdo_mysql extensions before deployment. The resul

imagenamed:@"Button"]; - //set a background picture - [button Setbackgroundimage:image forstate:uicontrolstatenormal]; - + //Add button - [Self.view Addsubview:button]; +}Run:As you can see, the effect is very poor. The reason is very simple, because the original size is 24x60, and now the entire picture is stretched to 150x50, the more serious is the 4 corners of the picture. Some people may immediately think of a solution, you call the artist to enlarge the picture is not good, h

Resources and set the startup page through StartupUri. The direct Derived classes of the core base class DependencyObject are Visual, Visual3D, TriggerBase, and Freezable. Visual represents 2D Visual elements, Visual 3D represents 3D Visual elements, and UIElement3D inherits Visual3D represents 3D UI elements. It also has two Derived classes: ModelUIElement3D and ContainerUIElement3D. TriggerBase is used to support the Trigger mechanism. Its Derived classes include Trigger, MultiTrigger, Dat

it, so it looks very unattractive. CSS3 's designers have already taken this into account, and using the round attribute value can avoid this situation. The role of round is to make a slight adjustment to the frame chart, to ensure that each picture can be displayed, adding to the ornamental. #round { border:15px solid transparent; padding:10px 20px; -moz-border-image:url ("/files/4127/border.png") round; /* Old Firefox * /-webkit-border-image:url ("/files/4127/border.png") round;/* Safar

[Cpp]/********************************** * ***** data structure: splay_Tree: Stretch tree; nature: the extension tree is an improvement of the Binary Search Tree. Like the Binary Search Tree, the extension tree is also ordered. That is, each node x in the extension tree meets the following requirements: each element in the left subtree of the node is smaller than x, and each element in the right subtree is greater than x. Unlike the common binary look

[Self.view Addsubview:button]; Run:As you can see, the effect is very poor. The reason is very simple, because the original size is 24x60, and now the entire picture is stretched to 150x50, the more serious is the 4 corners of the picture. Some people may immediately think of a solution, you call the artist to enlarge the picture is not good, how to stretch all right. Yes, it's a solution, but it's not recommended. The reason is simple: 1. The pi