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The Internet of Things (IoT) and Bitcoin (Bitcoin) are all fun new things today, so what's the point of putting them together? In short, it is the use of Bitcoin networks for secure, autonomous trading of transactions involving computing resources, storage resources, bandwidth, data, and even public displays that can help other devices display content. The middle will involve sensors, IoT short-range communication protocols, cryptographic currencies and block chains, MapReduce and Hadoop, machin
Recently I used Raspberry Pi to create a Git private server for all my Git repositories. I spent some time to make everything work correctly, but now it can run.
Install Git
First, install Git on Raspberry Pi.Sudo apt-get install wget git-core
This will install the Git server and necessary client software.
Install SSH
Files group), and o (other users) and the Permissions r (read), w (write), and x (execute). Using would chmod u+x *filename* add execute permission for the owner of the file.CHOWNThe chown command changes the user and/or group that owns a file. It normally needs to be run as root using sudo e.g. would change the owner to Pi and the sudo chown pi:root *filename* group to root.Sshsshdenotes the secure shell. Connect to another computer using a encrypte
244.43Core i7 930 **** 1764.75 428.00Core i7 860 #### 2004.31 381.97Core i7 3930K 2529.73 746.01Core i7 4820K $$$1 2671.15 892.04Core i7 4820K $$$2 2684.05 895.54Core i7 3930K OC 3112.94 926.92Raspberry Pi is not suitable for high-performance environments in terms of design. but in another scenario, it is still promising to use the arm-based server solution.
Forwarding
1.
0 PrefaceThis article explains how to install Mosquitto on a Raspberry Pi. In this article, two simple examples of how to use the MQTT protocol for message subscriptions in the Raspberry Pi include the mosquitto_sub instruction to implement message subscriptions and Paho-python extension libraries to enable remote cont
Raspberry Pi is abroad, which may be slower when used domestically, where the source is modified to the source provided by Aliyun . To facilitate my first installation of the Vim software, because it is not used to the Raspberry Pi with the VI software.
sudo apt-get updatesudo apt-get install vim -y
Then
What's this?"Roomblock" is a robot platform consists of a Roomba, a Raspberry Pi 2, a laser sensor (RPLIDAR) and a mobile battery.The mounting frame can be made by 3D printers. ROS navigation system enable to make a maps of rooms and use it to reach to the goal autonomously.Who need this?Anyone want to learn the cutting-edge technologies of robotic navigation, ma
prompt the following warning:You should understand that overclocking may cause your Raspberry Pi life to be shortened. If you overclock to a certain frequency causing the system to be unstable, you should try to lower the frequency. Hold down "shift" while the system is booting to temporarily disable overclocking.4.8 Advanced Options4.8.1 OVERSACNThere are a lot of different sizes for the old TV screens, a
$ RTL-SDR dongle to find it yourself)
A source. wav file
Make and Libsndfile1-dev
Pifmrds from GitHub
To start, let's take care of the software requirements by running apt-get update and apt-get install upgrade
Apt-get Install make Libsndfile1-dev
Step 2:download Configure pifmrdsConnect your Pi to a HDMI display or SSH into it fr
# Assuming that the source code in the/home/pi/linuxcd/lib/modulesmkdir 4.1.y #先随便建立一个目录, may need sudo, as appropriate to add, the following no longer promptCD 4.1.YLn-s/home/pi/linux BuildLn-s/home/pi/linux SourceThe next step is to get the kernel configuration now running the kernel, which can be automatically compiled based on this ready-made configuration (
.ip_forward=13. Download the basic image and enable the shell terminal:
docker run -t -i resin/rpi-raspbian /bin/bash
Download the docker sample project
We created a sample project that can be packaged in a docker container [Google's coder project] (http://googlecreativelab.github.io/coder/). To run it, exit from the shell in the previous steps, run the following command:
docker run -d -p 8081:8081 resin/rpi-google-coder
After executing the preceding command, you can enter https: //
How to
a network cable directly connected to the Raspberry Pi, the specific reference http://www.whatled.com/post-1526.html
Before you copy the Raspberry Pi LCD driver to/boot, do the following (external USB keyboard required)1 Tar xzvf/boot/lcd-show-2 CD lcd-show/3 ./lcd5-show
After rebooting, install the LC
black-pearl.local (192.168.2.113): Data bytesBytes from 192.168.2.113:icmp_seq=0 ttl=64 time=5.697 ms
Then, deploy your regular SSH key to Raspberry Pi.$ ssh-add$ ssh-keygen-r 192.168.2.113$ Ssh-copy-id pirate@192.168.2.113
Now we can login to Raspberry Pi without the password.$ ssh pirate@192.168.2.113
$ uname-aLi
Temperaturedefget_cpu_temp (): Cpu_temp_file= Open ("/sys/class/thermal/thermal_zone0/temp") Cpu_temp=Cpu_temp_file.read () cpu_temp_file.close ( )returnFloat (cpu_temp)/1000defMain (): whileTrue:strftime=time.strftime ("%y-%m-%dt%h:%m:%s") Print "Time :", StrftimePrint "cpu_temp:", Get_cpu_temp ()#Sleep 60 secondsTime.sleep (60)if __name__=='__main__': Main ()2nd step: Become the Yeelink platform developer and complete the configuration of the Raspb
it has been a great success.In order to make scratch with the Gpio interface of the Raspberry Pi, the first thing you have to do is to open the program, enter the editing interface, choose to start the Gpio server. Then you can use the broadcast block to identify the Gpio interface you want to use. In the above, these two broadcast blocks point to Config19out an
that can connect to the HDMI interface, or a monitor that transfers the VGA interface using the active HDMI to VGA module.
2. Software SettingsWrite the Windows IoT Core system image for Raspberry Pi, note that the version is more than 14986, preferably the latest version 15026. Insert the system-burning TF card into the Raspberry
overheating, we need to restart the Raspberry Pi, and then open the Raspberry Pi application again. This will bring a lot of trouble to our daily operations. Watchdog (watchdog) can make Raspberry
Cross-compiled Raspberry Pi 2 kernel in CentOS
Cross-compilation toolchain in CentOS 6.6 x64 requires glibc-2.14 support (x86 is not needed), so first install the glibc-2.14
Install the relevant compilation tools before installation. Here I will install the entire group directly.
Yum groupinstall "Development tools"-y
Download the glibc-2.14 source code, compile, install
Wget http://ftp.gnu.org/gnu/glibc/gl
software package is ready and can be released;
Iii. Cross-compiling source code
1. Environment
Ubuntu
2. Install Raspberry Pi cross compiling tool
Step1. download Raspberry Pi cross compiler tool https://github.com/raspberrypi/tools
Step 2: place the source code in a folder that users can share, such as/usr/tools.
Ste
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