adafruit rpi

Cross-compiled raspberry pi 2 kernel in CentOS, centosraspberry 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/glibc-2.14.tar.xzmkdir /usr/local/glibc-2.14tar xvf glibc-2.14.tar.xzcd gl

problems using the uncompressed kernel, but the zimage worked fine.However, I still didn ' t get my touch-screens working, but this seems to bee a problem of the device aliases.Still working on it.Steffen Posts: 7 Joined: Sat, 3:55 pm Byn1ks»tue Feb 12:40 pm If You run rpi-update you should find Egalax touchscreen module have now been added to the Kern El. (with tested on vanilla Raspbian install using

Step One: Install the Raspberry Pi cross-compilation environmentEnvironment used: ubuntu13.041. Download the cross-compilation toolwget https://s3.amazonaws.com/RTI/Community/ports/toolchains/raspbian-toolchain-gcc-4.7.2-linux32.tar.gz2. Unzip to the system directoryTar-xvzf raspbian-toolchain-gcc-4.7.2-linux32.tar.gz-c/opt3. Add the appropriate path to the environment variableVi/etc/profileAdd on last lineExport path= $PATH:/opt/raspbian-toolchain-gcc-4.7.2-linux32/binStep two: Compile the kern

data forwarding rules: Iptables-t nat-a postrouting-o eth0-j SNAT--to-source 121.121.121.121 Copy CodeIf the IP of the external network is assigned dynamically, you can use the Iptables-t nat-a postrouting-o Eth0-j Masquerade Copy CodeThis avoids the need to manually modify the corresponding IP address each time you connect to an external network.At this point, the client can access the Internet over a wireless AP.Step 7, let the

Arrange reprint, original link http://www.eeboard.com/bbs/thread-5191-1-1.htmlThis post I intend to use qa way to write, so it is easier for everyone to see clearly the content of the entire post, hierarchical, clear conditioning, the following are my personal to the Raspberry Pi after the actual use of problems and solutions.1. Q: How does the Raspberry Pi start?A: Use Win32diskimager to write the system mirror img file to the SD card, then plug it into the Raspberry Pi card slot and power up t

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/glibc-2.14.tar.xzMkdir/ usr/local/glibc-2.14Tar xvf glibc-2.14.tar.xzCd glibc-2.14Mkdir buil

Build a Qt cross-compiling environment for Raspberry Pi 2B and Raspberry Pi 3 The lab project needs to use Qt to develop a user interaction interface on Raspberry Pi. Although Raspberry Pi's hardware configuration is constantly improved with version updates, it still cannot meet the requirement of Qt development directly on Raspberry Pi. The first thing to do is to build a cross-compilation environment. Follow these steps: Experimental Platform: Raspberry Pi 2B (later I conducted an experiment o

bool Address Comment string' xml: ', comment "' } V: = person{id: -, FirstName:"John", LastName:"Doe", Age: the, Sex:"Female"} v.comment ="need more details." V.address = address{"Hanga Roa","Easter Island"} V.ewa = elementwithattr{"Attribteone","Attributetwo"} V.ewachild ="Elementwithattrchildnode" ENC: = XML. Newencoder (OS. Stdout) Enc. Indent (" "," ")ifERR: = Enc. Encode (v); Err! = Nil {fmt. Printf ("Error:%v\n", err)}}funcMain () {pi: =3.1415926 BUF: = bytes.

Lab 4: Add a system call to raspberry Pi1. Download the compilation tool, the Kernel source file, and the Firmware. $ Mkdir rpi$ Cd rpi$ Git clone git: // github.com/raspberrypi/firmware.git PRiFirmware$ Git clone git: // github.com/raspberrypi/linux.git RpiLinux$ Git clone git: // github.com/raspberrypi/tools.git RpiTools The download takes a lot of time and requires network stability.2. Obtain the. conf

If It happens as using SSH, this is a fault on the SSH client, not the RPi. For example using an Ubuntu machine as the SSH client would cause this problem.To the "fix this" ssh problem, edit the file/etc/ssh/ssh_config on the SSH client (not the RPi) and remove the lineSendenv LANG lc_*This is stops the client sending invalid locale information to the RPi. The

$sudo python rpi-2.2tft-kbrd.py Or $sudo python rpi-2.2tft-jstk.py Or $sudo python rpi-2.2tft-mouse.py Note: Uinput's key value is generally uinput. Key_xx (XX is the key, such as the letter A, is uinput. KEY_A) Python-uinput Library can be used for reference (HTTPS://GITHUB.COM/TUOMASJJRASANEN/PYTHON-UINPUT)Reference to the use of the Rpi.gpio Library (http://p

Raspberry Pi on the Cloud (1): Environment preparationRaspberry Pi on the Cloud (2): Uploading sensor data to AWS IoT and leveraging Kibana for presentation1. Sensor installation and configuration 1.1 DHT22 installationThe DHT22 is a temperature and humidity sensor with 3 pins, the first pin on the left (#1) is the 3-5v power supply, the second pin (#2) is connected to the data input pin, and the rightmost pin (#4) is grounded.The Raspberry Pi 3B has a total of 40 pins (gpio,general Purpose I/O

self.state! = "Off":Os.system ("Echo 0 >%sbrightness"% self.led_path)Self.state = "Off"LEDs = [Simpleled (i) for I in range (4)]While True:For j in Range (4):LEDS[J]. On ()Time.sleep (1)For j in Range (4):LEDS[J]. OFF ()Time.sleep (1)You like to use CLOUD9 to open a file to paste the above code up, and then run, or command line execution, the same effect. Flash ...Adafruit What's wrong with that I don't study. Hands-on, clothed. It's very simple. The

school students. howcast-Learn small skills in everyday life through video. Memrise-uses the concept of gameplay to learn the language. Schooltube-for primary and secondary students, said there are 500,000 videos. instructables-a DIY website. Creativelive-teaches you the skills of photography, music, design, etc., to pay. Do It yourself-teach you to become a home improvement person. Adafruit Learning system-offers free DIY

steps, you can compile a 32-bit program. For 64-bit systems, 32-bit, 64-bit applications can run, but 64-bit programs run only on 64-bit operating systems.a.32 bit MinGW GCCLibusb-win32-bin-1.2.6.0\lib\gcc\libusb.ab.64 bit MinGW GCCConnect directly to Libusb0.dll or create your own import Libc.32 bit MSVC (=microsoft Visual C + +)Libusb-win32-bin-1.2.6.0\lib\msvc\libusb.libd.64 bit MSVCLibusb-win32-bin-1.2.6.0\lib\msvc_x64\libusb.libc.64 bit MSVC for IA64Libusb-win32-bin-1.2.6.0\lib\bcc\libusb.

, atmega328p provides an internal reference source of 1 v. When measured at room temperature, the output voltage of lm35 is several hundred MV magnitude. Therefore, an internal reference source can be used to obtain a higher measurement resolution. If the 5 V power supply voltage is used as the reference source, the measurement resolution is 5000mV/1024 = ~ 9mV, corresponding temperature 0.49 °C; If the internal reference source of 1.1v is used, the measurement resolution is 1100mV/1024 = ~ 1

1, what is the raspberry pie. Raspberry Pi (Chinese named "Raspberry Pie", abbreviated as RPi, or RASPI/RPI) is designed for students ' computer programming education, and only card-type computers with credit cards size are based on Linux. The raspberry pie was developed by the Raspberry Pi Foundation, a charitable organization registered in the UK, Eben upton/Es Upton is the project leader. March 2012,

Google has finally released its Fuchsia/magenta kernel of the Raspberry Pi version, the following describes how to compile and run Ready to work, first need to have an HDMI screen, I'm here is the 800x480 HDMI screen, then the keyboard Download Magenta code from Google src or github Https://fuchsia.googlesource.com/magenta In the running directory Scripts/download-toolchain Download the tools needed, I am here because of using MacOS, so download is Darwin's tool Then switch to working directory

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 understood as the Raspberry Pi bios, boot programs and the like, this part of Bo Tong not open source, to the Raspberry Pi added new features mainly through the firmware to achieve. 2, Raspbian system kernel: That is, the Linux kernel, this part is completely open sour

The Yocto Project testing:"Bitbake" the poky distribution with meta-raspberrypi layer for RASPBERRYPI2 B + board.After I finished the build process successfully,I use the following command to write the SD card"sudo dd if=tmp/deploy/images/raspberrypi2/rpi-hwup-image-raspberrypi2.rpi-sdimg of=/dev/sdb Bs=1M"Then insert the SD card, something goes wrong and the boot process, it cannot boot with normal stuff.P