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. Stopthread () self.serial.close () OK = False while not ok:dialog_serial_cfg = wxserial Configdialog.serialconfigdialog (None,-1, "", Show=wxserialconfigdialog.show_baudrate|wxserialconfigdialog. Show_format|wxserialconfigdialog.show_flow, serial=self.serial) result = Dialog_seri Al_cfg. ShowModal () Dialog_seriaL_cfg. Destroy () #open port if not called on startup, open it on startup and OK too if result = = Wx.id_ok O R event is not None:try:self.serial.open () except serial. Serialexception
same as the previous cont.
routines, Ssh+vnc.
Now the small partners, whether it is the network cable straight, or WiFi hotspot we are connected to small pi, in order to later we can the small Pi overlord the bow, we have to prepare some tools--ssh and VNC. reason: ssh+vnc simple rough Connection Small pi Brief Introduction: No, oneself Baidu a bit ~ Tools: Sma
#文中设置均基于最新版的Raspbian系统2016-Version 11
Raspbian in the desktop environment, the system will go into hibernation after a period of time. Tried some methods such as directly with Xset close DPMS, is not successful.
Raspbian uses a lightweight desktop display manager that is LIGHTDM, which allows you to set up Xserver desktop session interaction \ Display, and so on.
1. Open the terminal;
2. Edit/etc/lightdm/lightdm.conf
3. Locate the ' Xserver-command '
Realize the WiFi disconnection automatically, the principle is to use Python to monitor whether the network is disconnected, if the disconnection will restart the network service. Next to everyone to share the implementation of code, need to refer to the friend
1.Python code autowifi.py, placed in the/HOME/PI directory:
#!/usr/bin/pythonimportos, Time whiletrue: if ' 192 ' not in Os.popen (' ifconfig | grep 192 '). Read (): print ' \n**** * * W
The raspberry Pi2, introduced in February 2015, cannot be installed Lazarus with the previous method, and when installing the FPC, the following problem stops the installation.Find a solution from http://otapi.com/2015/02/10/raspberry-pi-2-freepascal-lazarus-and-delphi/:1. Installing Subversion and unzipSudo apt-get UpdateSudo Apt-get Install Subversion UNIZP2. g
To play a video, use the "cd" command on the command line terminal to switch the path to the directory where your video file is located, and then enter the following command:Omxplayer example.mp4In this case, the full screen upload example.mp4 file can be exited by pressing CTRL + C.Example video sample: big buck bunny (example Video: taoxiao rabbit)Here is an example video that can be played on Raspberry
Raspberry Pi has two audio output modes: hdmi and headphone interfaces. You can switch between the two modes at any time.
If your HDMI monitor has a built-in speaker, the audio can be played through the HDMI interface. You can also switch to the headset interface to use the speaker of the headset or other headset interface to play the video. If your monitor requests support from the speaker, the sound is ou
This blog will show you how to install three different text-based Web browsers on Raspberry Pi. The original article can be found here or at the bottom of this article. Most Web browsers run a little hard on the small school, or consume a lot of resources, so an alternative solution is to use a web browser based on command line.
So far, text-based browsers have not been able to do anything that a common bro
Reference: RPi Serial ConnectionThis article from: Http://www.raspberry-projects.com/pi/programming-in-c/uart-serial-port/using-the-uartUsing the UARTIf you is running Raspbian or similar then the UART would be used as a serial console. Using a suitable cable, such as the Ttl-232r-3v3-we, you can connect it to your PC and using some simple terminal software Set to 115200-8-n-1 use the command line interface
To set the time zone for the Raspberry Pi, use the following command:
sudo dpkg-reconfigure tzdata
After executing the command, you need to wait a little bit, then come out the time zone selection interface:
Note that if you do not see this interface after executing the command, but instead see a bunch of garbled characters, then you need to set up SSH or other termi
Raspberry Pi 2 install the latest version FPC and Lazarus 1.5
The Raspberry Pi2 launched in February 2015 does not support Lazarus installation using the previous method. When installing fpc, the following problems occur.
Slave:1. Install subversion and unzipSudo Apt-get updateSudo Apt-get install subversion unizp2. Obtain and compile the latest FreePascal Compil
On-line tutorials, general Python with Rpi.gpio to control the Raspberry Pi Gpio, and C + + generally use WRINGPI library to operate Gpio,rpi.gpio too simple, many advanced features do not support, such as I2C/SPI library, etc., but also lack of high-precision timing and other advanced features. In contrast, WIRINGPI is rich in functionality, but in fact WRINGPI already has Python bindings that can be very
Uwsgi_params;Uwsgi_pass Unix:/tmp/uwsgi.sock;}}Then use the LN command to create a link to/etc/nginx/sites-enable/, Link's name is also called site, delete the Sites-enable directory under the default link:sudo ln-s/etc/nginx/sites-available/site/etc/nginx/sites-enabled/( Note: This is ln's lowercase command )sudo rm/etc/nginx/sites-enabled/default4) Start deployment1. Start Uwsgi, command is sudo uwsgi-x myapp_config.xml, will play a lot of words, if not loaded project success can be seen from
that the appropriate content is modified according to the actual situation:
[Unit]
Description=wireless Static IP Connectivity
Wants=network.target
Before=network.target
[Service]
Type=oneshot
Remainafterexit=yes
Environmentfile=/etc/conf.d/wifi
EXECSTART=/SBIN/IP Link Set Dev wlan0 up
EXECSTART=/SBIN/IP addr Add 192.168.34.1/24 broadcast 192.168.34.255 Dev Wlan0
EXECSTOP=/SBIN/IP addr Flush Dev Wlan0
EXECSTOP=/SBIN/IP Link Set Dev
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