Raspberry Pi B + regularly uploads CPU GPU temperature to IOT yeelink, raspberryyeelinkZookeeper Raspberry Pi B + regularly uploads CPU GPU temperature to IOT yeelink
Hardware Platform: Raspbe
Raspberry Pi B + timing to IoT Yeelink uploading CPU GPU temperatureHardware platform: Raspberry Pi B +Software platform:1 Installing the Requests LibraryFirst we have to solve the requests library, when we send to Yeelink POST message will use: R = Requests.post (Apiurl, He
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 Pi A +, system
system on the USB hard drive, but SDcard still has to be able to open the machine. When using an external hard drive, if the hard drive is not external, I am afraid that Raspberry Pi can not be used for so much electricity, it is possible to switch to a USB hub with an external
CodePress Ctrl+o to save, press Ctrl+x to exit, and then enter
sudo reboot
Copy CodeReboot the system, SSH connect after completion, enter
sudo apt-get update
Copy CodeThis speed is definitely much faster than before, and there is no need to find a lot of sources of the situation7. Q: How to use the wireless card, let the Raspberry Pi get rid of network cable bondage?A: First of
connecting to WIFI, the IP address of Raspberry Pi is displayed on the tray icon.
[SHH]
With the IP address, you can use SSH. Use putty to connect to SHH:
User name: pi
Password: raspberry
A dialog box will pop up during the first connection to talk nonsense. Just click OK.
Disable standby]
However, in this case, th
Split Memory allocation, select how much memory to GPU
A4 ssh to run SSH login, it is recommended to open an account this option, after the operation of Pi convenient, network on the line, do not open the screen.
A5 SPI whether the SPI core driver is enabled by default, the novice will have no control.
A6 Audio Select whether the sound is output to the analog or HDMI ports by default
0 Auto Selecti
as follows:
APIKEY="U-ApiKey:ffa3826972d6cc7ba5b17e104ec5xxxx" APIURL="http://api.yeelink.net/v1.0/device/1949/sensor/2510/datapoints" curl --request GET --header $APIKEY $APIURL[Returned results] {"timestamp": "2014-07-28t20: 56: 51", "value": 49.23}
Yeelink V1.1 API: Modify the API version number in the preceding script, and change V1.0 to V1.1. From the returned results, we can find that the API version 1.1 returns more information. [Returned results] {"value": 49.23, "timestamp":
Wow , excited, New year, I in 2016, I bought a card size board, Raspberry Pi, yesterday to the goods, the night began a toss-up tour① There is no wired network connection on the wireless network, in this need to thank one person, he provided the tutorial Duang-max? 1029086180, one of the great gods.② Preparation Tool (Hardware):⒈ Raspberry
mirroring interface:3. Firing system?? After downloading, through a software "Win32diskimager", to burn the system, in the device Select Reader display external device, image file Select just download, and extract the completed image files, and then click on Write, write operation, Because I am the smallest mirror system, so it takes only a few minutes to complete the system burning, you wait a moment, it is finished.?? Burn software:
Note:
0 environmentLinux hosts os:ubuntu14.04 64-bit, running on WMware workstation 10 virtual machinesRaspberry Pi Version: Raspberry Pi 2 Type B.Raspberry Pi Os:debian Jessie Raspbian Jessie1 Raspberry Pi Start-up processThe boot proc
Raspberry Pi (Raspberry Pi) builds a Linux system (PiLFS) from scratch (II), raspberrypilfs
7. Build a temporary system
1. General Compilation Guide
A. Check whether the settings are correct.LFSEnvironment Variable
echo $LFS
B. Assume that you have correctly set the host system requirements and symbolic links.
C. For e
Securi-Pi: Uses Raspberry Pi as a stepping stone for securityGuideLike many readers of LinuxJournal, I have also lived a very common "technology nomadic" life today, from one access point to another between networks, we are in different places in the real world, but we are always connected to the Internet and other networks that are commonly used.
Recently, I hav
expose.NotesThis solution can take care of most restricted network environments, but some firewalls call deep packet checks on external traffic, and they often block out information that is transmitted in the same way as this article does. But I haven't tested it yet behind a firewall like this. At the same time, although I use a lot of cryptography-based tools (OPENVPN,HTTPS,SSH), I have not very rigorously audited this configuration scheme (LCTT: T
Raspberry Pi speaker, using a shairport
A private cloud service owncloud, can be anywhere, including the use of mobile phones, upload download files, synchronization calendar and so on. This service is relatively slow, is the only one let me buy a new version of Pi reasons.
An alarm clock, the hour will Chime (the first time in the morning is the daughter sh
Raspberry Pi (Raspberrypi) common image high-speed downloadRaspberry Pi Official website in the domestic open speed is relatively slow, want to download the image may need to wait for a long time, in order to save time to download the image, I here to organize the Raspberry Pi
快至少5倍以上, 100 seconds to get it done!There is no axel in the system, you need to download the installation by yourself.2. InstallationDownloaded after the file is arduino-1.8.2-linuxarm.tar.xz, need to decompress, the specific steps are as follows:Cd/home/pi/downloads # Go to the file download directoryxz-d arduino-1.8.2-linuxarm.tar.xz #解压得到文件: Arduino-1.8.2-linuxarm.tar, this command takes 30 seconds, you need to wait a momentTAR-XVF Arduino-1.8.2-li
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
temperature and humidity. The commonly used temperature and humidity sensor communicates with the processor using a single bus protocol, and the temperature and humidity measurements are output to the Raspberry Pi end. In this routine, temperature and humidity measurements are made using the grove-temperature and Humidity Sensor Pro module (DHT22). Connection: The temperature and humidity sensor sample cod
First, about open source hardwareThe concept of open source hardware is simple to understand that the electronic hardware design detailed parameters are public, such as circuit diagrams, BOM and PCB layout and so on.Main types: Arduino, Cubieboard, Raspberrypi, Pcduino, Beaglebone, Kiwiboard, and MixteilOpen source China Community-Open source hardware zone Http://www.oschina.net/hardwareSecond, choose Raspberry Pi
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