things to with raspberry pi 3

The raspberry pi system installs Linux and raspberrypi on the SD card. I just got a raspberry pi borrowed by Simon and prepared a 4 GB SD card for Linux. On Windows 7, use the tool Win32DiskImager to write img to the SD card. An error is returned and an error is returned. Fortunately, I have a Linux vmwarevm. Run the

the following two lines of code:http. Handle ("/", HTTP. Fileserver (http. Dir ("HTML")))http. Listenandserve ("0.0.0.0:8080", nil)Step 4: The target environment is modified to CROSS-ARM6, according to "Ctrl+b" compiled, the generated execution file is the source directory "Test", no suffixStep 5: Copy "Test" to your arm Development Board (Raspberry Pi Raspberrypi, Orange pie Orangepi), and authorize: sudo

空，再回车，选择主菜单中的save setup as dfl3、重新进入命令行，输入minicom之后，进入minicom，插上电源，显示开机信息如下（包含解释）：Uncompressing Linux... done, booting the kernel. //解压Linux核心系统 [ 0.000000] Booting Linux on physical CPU 0x0 //加载核心CPU指令集，并初始化CPU [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct

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: #

") while1: Time.sleep (120) Get_webservertime ("www.baidu.com")3. Giving permissionsudo chmod 777 date.py4. Test procedureChange the system time to an expiration time first' 2016-02-03 10:00:00 'To see if the system time has been modified successfullysudo dateExecute a well-written Python program and use the date command after 20 seconds to see if the system time is synchronized successfully!sudo python date.py5. Add Python program to bootEdit the sys

Installation Summary steps: Official website Download system-"brush into TF card-" Set on display and ssh-"Power on-" Enter the system1. Go to the official website to download the system imageDownload page: https://www.raspberrypi.org/downloads/Come to the following pageInstallation under 2.Windows System: (Non-wind system please look down) 2.1) First connect the Ready TF card to the card reader, insert the computer 2.2) download a format SD card tool, format SD cardDownload URL: https://w

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

Tags: Raspberry Pi wiringpi Zookeeper 1. Void pinmode (INT pin, int mode ); This function sets the Input and Output Modes of the pin and the input and output modes of PWM. InWiringpi onlyPin 1 (bcm_gpio 18) supports PWM output. 2. Void digitalwrite (INT pin, int value ); This function is used to set the level of the pin. When we write high or low (1 or 0), the mode of the pin must be the output mode.

The first thing to note is that the Raspberry Pi Debian system is automatically scanning the display, in most cases cannot be displayed in full screen, that is, the actual display of the desktop is larger than the display resulting in some windows can not be displayed or closed, Either the actual displayed effect is less than the size of the display, resulting in black border areas around it. If this is the

Raspberry Pi advanced GPIO library, wiringpi2 for python using notes (4) practice DHT11 decoding, gpiodht11 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 deg C. The encapsulated modules I bought contain the pull-up resistor. After checking the

package for the release. It generates a file with a name similar to "package-version.tar.gz" in the current directory. Package and version are the Am_init_automake (package, version) that we define in configure.in;>>make Distcheck: Generate and test the release package to determine the correctness of the release package. This action will automatically unpack the package file, then execute the Configure command, and do make to confirm that the compilation does not appear error, and finally promp

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

# Modify the configuration file Raspberry Pi has integrated the I2C driver and only needs to be started. Modify configuration file Sudo nano/etc/modprobe. d/raspi-blacklist.conf ! [Configure] (http://images.cnblogs.com/cnblogs_com/hangxin1940/466697/o_rasp_i2c1.png "comment the third line ")Comment out the third line, CTRL + x save Next, start the I2C module. Sudo nano/etc/modules ! [Configure] (ht

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.json{ "name":"Test-gpio-demo", "version":"0.

TargetPress the button in the mobile app to open the bedroom door.Basic principleRaspberry Pi as a control device: It runs a Linux system, so it is powerful and provides a GPIO interface, so it is easy to control the physical door mechanism.Yeelink Platform as a cloud provider: it is very difficult to build your own Web server, Yeelink provides free internet of things cloud services, and open APIs that can

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!!!!!!!!!

Beginner Python , try to change the program that was previously written in C on the Raspberry Pi. Python version of the. Four-bit common yin digital tube and Raspberry Pi Circuit connection method is as follows:A ~ p-------------------------------GPIO0 ~ GPIO7D1 ~ d4-----------------------------GPIO11 ~gpio8Here is the

Raspberry PI Series--bare metal illuminated LED lightsBackgroundRecently just bought Raspberry PI B +, configured to run the official Raspbian system, tossing a week Linux system, feel no meaning, so try to understand the bottom of the start process, through a few days of research, It is found that the boot of the lowe