raspberry pi relay switch

sprinkler and an electric rice cooker. Therefore, the Raspberry Pi Plus relay can fully extend its control over external devices. Dry-reed Relay refers to the reed relays, which are compared with the general relays, and their switching speed and life are greatly improved. The use of the

its control over external devices.Dry-reed Relay refers to the reed relays, which are compared with the general relays, and their switching speed and life are greatly improved. The use of the relay is very simple, only the level control of its pin to complete the control of the relay. After entering the source directory, enter in the terminal:CD "Grove-

. Change the default login user?? In general, we are the root of the user's identity to the operating system, so the right to greater, but also more convenient to do some ordinary users are difficult to do things, according to the following: First switch the root user to activate the root user's password configuration option: [Email protected]:~ $ sudo passwd rootEnter New UNIX Password:Retype new UNIX Password:Passwd:password upd

, and intelligently judge with shell scripts to synchronize files from the remote server.And my other Raspberry Pi is a battle-hardened, once used as my Git repository, to be honest, the memory is a bit overwhelming, the installation and deployment of Gogs through Docker can be said to be the most agile git warehouse building. Of course, I'll give the veteran a temperature, humidity sensor, push to the serv

GuideLike many linuxjournal readers, I have also lived in today's very popular "tech nomads" life, between networks, from one access point to another, where we are in different parts of the real world and remain connected to the Internet and other networks we use on a daily basis. Recently I have found that more and more network environments are starting to block common ports such as SMTP (port), SSH (Port 22), and so on. When you walk into a café and want to SSH into one of your servers to do s

http://wangye.org/blog/archives/845/Recently began to toss up Raspberry Pi came, because somewhere in the internet need Ruijie dialing, so I would like to be able to let my Raspberry Pi do, of course, first of all to transform it into a router, the default comes with the network as a WAN port, we also lack a network po

/ BitTorrent Server :/http/blog.snapdragon.cc/raspberry-pi-as-bittorrent-server/ Web Cam Server :http://www. raspberrypi.org/archive S/tag/webcam Weather Station :http//blog.retep.org/2012/07/30/ installing-a-usb-weather-station-on-a-raspberry-pi-part-1/ BitCoin Wallet:https://bitcointalk.org/index.php?topi

file with commands to run the VNC server on the Raspberry Pi, to save have to remember it: -Create a file that contains the following shell script: #!/bin/shVncserver:1-geometry 1920x1080-depth 24-dpi 96 -Save As Vnc.sh -Make the file executable: chmod +x vnc.sh -then you can run it at any time: ./vnc.sh -If you want the mouse on the VNC client to be displayed as an arrow instead of the default "X", add an

connected to the switch (or router) via a network cable respectively, if the Raspberry Pi external LCD screen can be operated directly on the Raspberry Pi, otherwise it can be operated remotely via Putty Software on the PC, however Putty needs to know the IP address of the

From SSH to port forwarding, these advanced technologies will make your Raspberry Pi development easier. When you can enter a command in the command line, you are no longer a beginner in some new settings. Although the progress is not fast, you are indeed learning how to use a computer with a credit card size to satisfy some DIY ideas. This is Raspberry

files from a remote server.My other Raspberry Pi was once used as my git repository. To tell the truth, the memory was a little too powerful, installing and deploying gogs through docker is the most agile way to build a git repository. Of course, I will also bring a temperature and humidity sensor to the old employee and push it to the server through websocket. Then, you only need to visit the browser on y

-gnueabihf-Raspberry Pi Cross compiler toolchain address Https://github.com/raspberrypi/toolsRaspberry Pi Cross-compiling can refer to the Linux host on the implementation of Raspberry Pi cross-compiling and file transfer, remote loginBefore subsequent operation, source this

-disk-utilityIn the graphic environment. Then insert the microSD card back to Raspberry Pi 2 and start the system. At the first startup, it will automatically expand the partition to occupy the entire SD card.Kodi Chinese interface OpenELEC is equipped with the latest Kodi 14.X development version, default skin, English interface. If you connect to a TV through HDMI, you can directly use the TV remote contr