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Github:https://github.com/hicrater/raspberry-dht11-temperature.gitFirst, look at the wiring Wiring diagram Vcc Cathode Pick up the Raspberry Pi 3.3v power supply (choose one on the line) GND Negative Pick up the Raspberry

First, sign up for a NOIP account .Refer to this tutorial: http://www.cnblogs.com/infopi/p/3991407.htmlCreate a DirectoryLine 1th enters the current user's home directoryLine 2nd establishes the Noip subdirectory, line 3rd enters the Noip subdirectoryCD ~mkdir NoipCD NoipDownload Noip client source, installThe 1th line to download the source code, the 2nd line decompression source code, 3rd line into the extracted source directory4th line compilation, line 5th installationwget http://www.no-ip.c

and is easily downloaded and modified by the reader.The following books will not be introduced, share the graphic coverHere is still to recommend my own built Python development Learning Group: 725479218, the group is the development of Python, if you are learning Python, small series welcome you to join, everyone is the software Development Party, not regularly share dry goods (only Python software development-related), Including a copy of my own. 2018 Latest Python Advanced materials and high

. BOARD) Gpio.setup (GPIO). Out) P =gpio. PWM (0.5) P.start (1) Input (' Click enter Stop: ') # in Python 2 you need to use Raw_inputp.stop () Gpio.cleanup ()The following is an example of switching LEDs between light and dark:Import Timeimport Rpi.gpio as Gpiogpio.setmode (GPIO. BOARD) Gpio.setup (one, GPIO). Out) Gpio.setup (GPIO). Out) p = GPIO. PWM (P11) = GPIO. PWM (one, P.start) (0) p11.start (0) T

at the time of the connection, it's simple to do, just add the library to the. Pro file, as shown in:And then compile again, under normal circumstances will be compiled successfully, into the project directory, we will find a very long name of the folder, which is the QT in the compilation of the time produced by some intermediate files, of course, we compile the generated executable is also in the inside, the name and work name, open the console, Enter the directory with the CD command. and th

Objective Last year's Raspberry Pi has been in the drawer to eat ash, the previous array of Debian 9 released, there is no accidental support for the Raspberry Pi. Then re-took out the card reader and re-installed on the Debian Desktop version of the system. Introduced Now this thing is just a little bit more about Py

Today to change the play, do not continue to explore Raspbian system, research on the official website recommended another method of installation noobs.So what is noobs? It is an operating system management tool designed for easy-to-use graphical interfaces built for Raspberry Pi. All called: New out of theBox softwareOfficial as follows:The original purpose of this tool is to simplify the

dwc_otg.lpm_enable=0 console=tty1 ROOT=/DEV/MMCBLK0P2 ROOTFSTYPE=EXT4 Elevator=deadline rootwait2. Modify /etc/inittab Enter the following instruction: sudo nano/etc/inittab comment out the last line: #t0:23:respawn:/sbin/getty-l ttyAMA0 115200 vt100OK, restart the next Raspberry Pi now can write their own program to test the serial port. I am the TXD and rxd

500ms} led.state=0;}//led.close ();//Process.exit (); //Exit ProgramThere is also a component cur.jsvarHTTP = require ("http");//Utility function that downloads a URL and invokes//callback with the data.function Download (URL, callback) {http.Get(URL, function (res) {vardata =""; Res.on ('Data', function (chunk) {data+=Chunk; }); Res.on ("End", function () {callback (data); }); }). On ("Error", function () {Callback (NULL); });} Exports.dow

In the previous article--Installing the ROS package on the Raspberry Pi, I joined openni2_camera and openni2_launch , if you follow my step by step, compile to a certain step, you will certainly encounter the compilation error, Haha, so I left a last article at the end of the sentence "How to predict the funeral , please listen to tell. "The package that needs to be installed in the previous article needs t

Manual CheckChecked the mmcxxx0,mmcxxx0p1,mmcxxx0p2 in the/dev directory.The first two can be mounted normally, and the third mount will prompt for superblock errors.So Baidu a bit0 byte 1024x768 bytes), or it may be in block 0. The data in the Super block is actually the control information part of the file volume, or it is a volume resource table, and most of the information about the file volume is stored here. For example, the size of each block

Label:Recently started a Raspberry Pi, a whim to make a small home server, at home for the hour has been hanging. 　 Really is very small, only slap big, to Raspberry Pi bought some accessories, shell, small fan, 2 fins, 32G SD card, HDMI line, after the effect of assembly. You can update the next software before inst

Original: HTTP://SHUMEIPAI.NXEZ.COM/2014/09/30/RASPBERRY-PI-LED-STATUS-DETAIL.HTML?VARIANT=ZH-CNLED Light Status LED Color function Normal State ACT Green Card status Flashing: The SD card is active (similar to a computer's hard drive light) PWR Red Power Not blinking: normal FDX Orange