Urna SemperInstructor ' s NameJune 14, 2014Briefly:Customize the Raspberry Pi to a wireless portable surveillance camera, plug in a USB camera, plug in the USB WiFi, then encode the data of the camera, push the encoded data to the streaming media server, others can watch the data collected by the Raspberry Pi camera th
One: Perform an upgrade on the Raspberry Pi:
1 : Updating the software source
$ sudo apt-get update
2 : Replace the old package
$ sudo apt-getupgrade
3 : Perform a Raspberry Pi firmware upgrade:
1, Raspberry Pi firmware: Can be
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
/opt/ros/indigo
Common errors:
The compilation process compiles more than 180 package and installs it in the/opt/ros/indigo directory, often reporting ' collada_parser ', ' collada_urdf ', ' Rviz ', ' Visualization_ Tutorials ', ' rqt_robot_plugins/rqt_rviz ' these packets are faulty and the installation is interrupted. The solution is to remove the packages from the directory ~/ROS_CATKIN_WS/SRC directory and recompile the entire Ros. Finally, a separate workspace is created and the packages a
Use a network cable to connect directly to the computer without going through the router. The biggest feature of this method is to play Raspberry Pi with the least tool.I. Materials: Raspberry Pi, network cable, and laptop.1. Raspberry P
Starting with the Windows IoT Core 14986 release, Microsoft has added the Cortana voice assistant feature. Before, we could only use local speech recognition, and we needed to write the application to download it to the device. From now on, Microsoft has integrated the Cortana voice assistant from the system level, enabling users to start Cortana and interact with Cortana in real time with system settings. Let's try the process of using Cortana as a Windows IoT core device with
Raspberry Pi assembly and operating system installationFirst, the original Raspberry Pi1, Raspberry Pi 2 Model B Development Board2, SD card (this experiment project selects memory 8G SD card)3, network cable a root4, HDMI cable 15. LCD display6. Power supply7, USB wireless
I want to build a Raspberry Pi cluster to serve as the front-end of the website. The website is written in php without a database. I want to know how many Raspberry Pi is required to achieve the same performance as an E3 server (or other pc servers). has anyone done a similar test? I want to build a
ArticleDirectory
Introduction
Introduction
Some time ago, someone posted a Post saying that Raspberry Pi could send FM radio signals, so they all played around and found that the effect was good. So they wanted to expand their functions.
Fmemission functions implemented on the Internet have limitations:
Only files in WAV format can be played, and wav files must be16 bits 22.5 kHz mon
Raspberry Pi can do a lot of interesting things, it is equivalent to a small computer, installed on the system can be used as a small server home.
With this small server, you can implement an "offline" Download machine. But offline download here is not really offline, because the Raspberry Pi is still online-since the
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, Headers=apiheaders, Data=json.dumps (payload))I
Tags: Raspberry Pi sqlite0 PrefaceThis article describes how to use the SQLite database to store CPU temperature data in a Raspberry Pi. SQLite is a lightweight 0 configuration database that is ideal for use in Raspberry Pi and ot
There should be a lot of students in how to use WiFi for Raspberry Pi connection encountered some bottlenecks, the internet said that generally need a router, in fact, we download a 360 free WiFi can, equivalent to the computer as a router to share the network, Xiang Fine steps are as follows:Step one: Download 360 free WiFi, set up your username and password.View 360 free WiFi IP address, enter ipconfig in
Tags: Raspberry Pi sqlite python0 PrefaceThis article uses Python to insert the Raspberry Pi temperature data into the SQLite database, and the SQLite database contains a record table with only three fields-parameter name, time and temperature values. This article mainly explains Python operation SQLite's specific meth
So that your computer can connect to Raspberry Pi without entering a password. You only need to generate an SSH key.
1. Check for existing SSH keys (check the existing SSK key)
First, check whether your computer (the device you use to connect to Raspberry Pi) has an SSH key:
ls ~/.ssh
If you see
Id_rsa.pubOr
Id_dsa.pu
Raspberry Pi System I was playing bad ....Probably ran a little bit of this thing, causing problems with the systemsudo apt-get UpgradeUpgrade feature: Update software without changing existing software settingsUse caution in this function!!! Because after the update may be the graphics card driver updated, resulting in the interface!!!I am now a typical Raspberry
! [GY-85] (http://images.cnblogs.com/cnblogs_com/hangxin1940/466697/o_gy85.jpg "GY-85 ")
9-axis IMU sensor (GY-85 module) can also be seen as three modules 'itg3205 Three-Axis Gyroscope sensor ''' adxl345 three-axis accelerator tilt sensor ''' hmc5883l Electronic Compass'
The GY-85 Module Interface is I2C and can be easily linked to the Arduino/Raspberry Pi.
# PreparationsMake sure the system has installed
To telnet to the Raspberry Pi GUI via vnc, the Raspberry Pi must have a VNC Server service installed on one side, and a few simple configurations are required to make the operation more convenient, as detailed steps below.1. Installing the VNC server component--tightvncserversudo Install Tightvncserver2. Set up a VNC p
Environment: Raspberry Pi, System Raspbian, System comes with two versions of Python and Pygame.1. ArtboardsThe procedure is as follows:1! /home/pi/game_1.py2 ImportPygame3 4width = 6405Height = 4806RADIUS = 1007Fill = 18 9Pygame.init ()#Initialize PygameTen Onewindow =Pygame.display.set_mode ((window, height)) AWindow.fill (Pygame. Color (255, 255, 255))#fill t
Setting up Windows Ten for IoT on your Raspberry PiThis week on the BUILD conference in San Francisco Microsoft released the first preview of the Windows IoT (Internet of Thi NGS) for Raspberry Pi 2 (AS-well-lovely devices like the Intel Galileo and Minnowboard Max).First, as I mentioned in February the Raspberry
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