We connected L89 GNSS module to processor via UART. I may running gpsmon and gpspipe commands on board but but not getting NMEA logs. But when we were connected L89 to processor via USB, that time I am getting NMEA logs on gpsmon and gpspipe, what is issue with UART?
I edit /etc/default/gpsd file.
# Default settings for gpsd.
# Please do not edit this file directly - use `dpkg-reconfigure gpsd' to
# change the options.
START_DAEMON="true" command to continue
GPSD_OPTIONS=""
DEVICES="/dev/ttyS1"
USBAUTO="false"
GPSD_SOCKET="/var/run/gpsd.sock"
but I am not getting NMEA data using gpsd...
Related
I want to run 'qmlplayer' example from Qt GStreamer binder on my embedded system. My camera rtsp address uri is:
rtsp://admin:1234#192.168.2.106:554/ipcam_mjpeg.sdp
rtsp path is correct because I can run stream in VLS Player and run example with working camera view on my Ubuntu18 system. When I want run example on my embedded system I got error:
"Could not get/set settings from/on resource."
I checked in terminal:
[root#comp ~]# gst-launch-1.0 uridecodebin uri='rtsp://admin:1234#192.168.2.106:554/ipcam_mjpeg.sdp'
Setting pipeline to PAUSED ...
Pipeline is live and does not need PREROLL ...
Progress: (open) Opening Stream
Progress: (connect) Connecting to rtsp://admin:1234#192.168.2.106:554/ipcam_mjpeg.sdp
Progress: (open) Retrieving server options
Progress: (open) Retrieving media info
ERROR: from element /GstPipeline:pipeline0/GstURIDecodeBin:uridecodebin0/GstRTSPSrc:source: Could not get/set settings from/on resource.
Additional debug info:
gstrtspsrc.c(6441): gst_rtspsrc_setup_streams (): /GstPipeline:pipeline0/GstURIDecodeBin:uridecodebin0/GstRTSPSrc:source:
Could not setup transport.
ERROR: pipeline doesn't want to preroll.
Setting pipeline to PAUSED ...
Setting pipeline to READY ...
Setting pipeline to NULL ...
Freeing pipeline ...
What could be the reason? Missing linux driver? Ping is ok, iptables are droped
I am trying to connect Neo6 GPS module to Rpi3. I referred this link https://sparklers-the-makers.github.io/blog/robotics/use-neo-6m-module-with-raspberry-pi/, but I am unable to receive data from GPS module
.
I made sure serial is enabled with sudo raspi-config. but still it is not receiving data.
I would like to ask if it is possible to receive UDP or TCP packets instead of just the Physical layer by configuring the wifi_rx.grc 1 flow graph in GNU Radio.
wifi_rx.grc 1 is from the example in gr-ieee80211
I am using a LimeSDR-Mini as rx source
You can use the Wireshark Connector block to write the decoded frames in a PCAP file and inspect all layers with Wireshark/tcpdump/tshark just with like a normal WLAN card.
The flow graph you are referring to already contains these blocks albeit they are disabled by default. Click on them and click Enable in the context menu. Then run the flow graph and open the file in Wireshark. If you want live decoding you can write to a Linux pipe. See the rx_demo.sh script in the apps folder on how to do that.
I am running a simple SparkStreaming application, that consists in sending messages through a socket server to the SparkStreaming Context and printing them.
This is my code, which I am running in IntelliJ IDE:
SparkConf sparkConfiguration= new SparkConf().setAppName("DataAnalysis").setMaster("spark://IP:7077");
JavaStreamingContext sparkStrContext=new JavaStreamingContext(sparkConfiguration, Durations.seconds(1));
JavaReceiverInputDStream<String> receiveData=sparkStrContext.socketTextStream("localhost",5554);
I am running this application in a standalone cluster mode, with one worker (an Ubuntu VM) and a master (my Windows host).
This is the problem: When I run the application, I see that it successfully connected to the master, but it doesn't print any lines:
it just stays this way permanently.
If I go to the Spark UI, I find that the SparkStreaming Context is receiving inputs, but they are not being processed:
Can someone help me please? Thank you so much.
You need to perform below.
sparkStrContext.start(); // Start the computation
sparkStrContext.awaitTermination(); // Wait for the computation to terminate
Once you do this , you need to post the messages at port 5554 , for this you will first need to run Netcat (a small utility found in most Unix-like systems) as a data server by using and start pushing the stream.
For example , you need to do like below.
TERMINAL 1:
# Running Netcat
$ nc -lk 5554
hello world
TERMINAL 2: RUNNING Your streaming program
-------------------------------------------
Time: 1357008430000 ms
-------------------------------------------
hello world
...
...
You can check similar example here
I'm working on an iMX23 cpu with linux-2.6.35.3 and wondering if this is even possible to implement.
I can build g_serial and g_multi and use the serial port function, which uses /dev/ttyGS0.
Do I just have to change [console=ttyS0] to [console=ttyGS0] on the kernel command line?
Thanks
Yes, it should be that simple. Just change your kernel command line to "console=ttyGS0,115200" or similar. You'll find it even works with usb ports ie "console=ttyUSB0" for example.
It seems you can easily add another console port just by adding another setting in [/etc/inittab]
::respawn:/sbin/getty -L ttyAM0 115200 vt100
::respawn:/sbin/getty -L ttyGS0 115200 vt100
Adding another line as above will enable you to use USB serial as console too(/dev/ttyGS0).