raspberry pi 2 ble

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

it here."2" Installation Wiringpi, previously mentioned, check the Gpio pin assignment after installation. The PIN diagram is as follows:"3" according to the figure line, TXD is 8 feet connected to the MAX232 Rx Rxd on the TX, the TTL level to RS232 level so that the computer can recognize.Writing code in "4" Eclipse#include intMainvoid){ intFD; if(FD = Serialopen ("/dev/ttyama0",9600)) 0) {printf ("Serial err\n"); } while(1) {uartbuff[0]=Seri

configuration files are written /var/~/var/run/php5- The path location is written in path_info forwarding. change location location ~ .*\.php(\/.*)*$ You can solve the problem. 5. The Intranet access is normal. The typecho homepage accessed through the dynamic domain name of the peanut shell is completely white. The CSS file cannot be loaded and the second-level webpage cannot be opened. In WordPress, there is a blog address setting that can be used to regulate the pointing and forwarding of se

/images/spacer.gif "style=" Background:url ("/e/u261/lang/zh-cn/ Images/localimage.png ") no-repeat center;border:1px solid #ddd;" alt= "Spacer.gif"/>650) this.width=650; "Src=" Http://s5.51cto.com/wyfs02/M02/83/F0/wKioL1eAs93hsQofAAA0dzzSTgE347.png-wh_500x0-wm_3 -wmp_4-s_1937063563.png "title=" 2.png "alt=" Wkiol1eas93hsqofaaa0dzzstge347.png-wh_50 "/>Deploy Zen database, use MySQL database locallyYou can log into the Zen road system later.Get a

Http://blog.csdn.net/c80486/article/details/8460325 If Raspberry Pi is made into an electric appliance, several actions must be supported when it is powered on. 1. Automatic Logon 2. automatically run the startx startup Window System 3. After the window system is started, it automatically runs the custom program (generally the main interface of the application)

The complete effect of these 4 battles is: Let the Raspberry Pi send its own IP address to the mailbox automatically by mail.Combat 2 : http://blog.csdn.net/make_app/article/details/47305179Combat 3 : http://blog.csdn.net/make_app/article/details/47305337Combat 4: http://blog.csdn.net/make_app/article/details/473053870. System EnvironmentRaspberry

40 Gpio on a Raspberry Pi is the best thing to play.They can be directly controlled by c,/c++, Python, Java and other languages.Now, let's see how to do the same thing with node. js.Before you try, install node. js, and move to: 1. Prepare the Test foldermkdir/home/pi/documents/test-gpio-demo/2. Create a file Package.j

Python implements the example code of Raspberry Pi WiFi disconnection automatic reconnection, pythonwifi Enable Automatic reconnection of Wi-Fi disconnection. The principle is to use Python to monitor whether the network is disconnected. If the network is disconnected, restart the network service. 1. Put the Python code autowifi. py in the/home/pi directory: #

Ubuntu Raspberry Pi 2b cross compiling environment, ubuntu2b Generate executable code on another platform. Why is cross-compilation costly? One sentence: The last thing is. Sometimes it is because the target platform does not allow or cannot install the required compiler, and some features of the compiler are required. Sometimes it is because the resources on the target platform are poor, it is impossible t

!). ） 3.2) Turn on the forced HDMI output: (Many of the current monitors are not recognized on the Raspberry Pi)In the TF card partition, open the Config.txt file (post-boot location:/boot/config.txt), modify the following:config_hdmi_boost=4 #开启热插拔Hdmi_mode=#分辨率为适应屏幕分辨率的选择hdmi_group=2 # 1:CEA TV monitor 2:DMT com

Use a command line-based Web browser in Linux/Raspberry Pi This article will show you how to install three different text-based Web browsers on Raspberry Pi. Most Web browsers run a little hard on the small school, or consume a lot of resources, so an alternative solution is to use a web browser based on command line.

Reference: http://programmingadvent.blogspot.hk/2012/12/raspberry-pi-uart-with-pyserial.htmlRaspberry Pi UART with pyserial os:occidentalis v0.2Hardware:raspberry Pi Revision B with CobblerSetup:serial Loopback (Connect RX and TX pins on GPIO pins)Linux attempts to treat all devices as file system like devices, the UAR

First, basic settings 1 sudo raspi-config Move to the fifth "Enable Camera", enter, press the TAB key to switch to "enable" to confirm the return. Back to the main menu, tab to "Finish" to confirm the return. The Raspberry Pi will restart automatically.or execute a command to manually shut down the machine 1 sudo shutdown-h now Warning!!!!!!!!!

According to ArchLinux official website operation, if in doubt, refer to the official website: HTTP://ARCHLINUXARM.ORG/PLATFORMS/ARMV6/RASPBERRY-PIWith my own installation process example, my SD card is mounted on ubuntu14.04 for SDB.I. Using FSIDK partitioning[Email protected]:/home/alexknight# fdisk/dev/sdasda sda1 sda2 sda5 sdb Enter o. Enter P . Enter n, enter p , enter 1, press ENTER, and finally enter +100m . Enter t, a

Prepare the hard driveAccording to the online introduction that if it is FAT or NTFS format may appear permissions problems, and then simply formatted as EXT4 format.Working with the Minitool Partition WizardWith a small USB flash drive, you can format the Raspberry Pi directly, the command is:mkfs-t EXT4/DEV/SDB1Installing SambaSet the shared folder to/samba$ Mkdir/sambaSet access Permissions$ chmod 777/sa

The DHT11 is a temperature and humidity sensor with calibrated digital signal output. Precision humidity +-5%RH, temperature +-2℃, range humidity 20-90%rh, temperature 0~50℃. I bought a good package of modules, the top with a pull-up resistor, directly to the Raspberry Pi can be gray, purple, blue respectively represents data, 3.3V, 0V, to the