Artnet | An Art-Net library for Teensy , Arduino and ESP boards
kandi X-RAY | Artnet Summary
kandi X-RAY | Artnet Summary
An Art-Net library for Teensy and Arduino. Also supports Arduino Zero, ESP8266 and ESP32 based boards. Note: this library assumes you are using the standard Ethernet library.
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of Artnet
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Trending Discussions on Artnet
QUESTION
I have a device in the network at 192.168.123.204 which broadcasts UDP datagrams(Artnet) as 2.168.123.204 to 2.255.255.255:6454. (The network address is 192.168.123.204 but the datagram is sent with 2.168.123.204 as source.) The address 2.255.255.255 can't be changed (no setting for that).
My Python script runs on the device 192.168.123.148. I can receive the datagrams there with wireshark: but a Python socket bound to 0.0.0.0:6454 can't receive them. Binding it to 2.168.123.204 or 2.255.255.255 does not work. The script is working, since I can receive Packets from 127.0.0.1.
If it can't be solved with Python can I redirect the UDP broadcast with iptables (linux)?
Network:
Router 192.168.123.1
/ \
Broadcaster: 192.168.123.204 Script: 192.168.123.148
basic script:
...ANSWER
Answered 2021-Mar-17 at 09:35Use raw socket.
QUESTION
I have implemented a custom QAbstractTableModel and I have run it through the QAbstractItemModelTester and there are no more issues in my model. However, I am now trying to implement sorting through a QSortFilterProxyModel and I can't seem to get anything working at all.
...ANSWER
Answered 2021-Jan-26 at 07:25Well it turns out, trying to replicate the issue on a smaller scale made my brain neurons fire enough, that i figured out the problem. My model column count can change and it does change, however, I had not written anything that notifies about column count changing beginRemoveColumns and endRemoveColumns and beginInsertColumns and endInsertColumns. I implemented those in my code like so
QUESTION
I'm creating a cross platform application that uses Artnet and UDP protocol to communicate with a device on the network. I know Artnet is also UDP.
Where it works:
- Windows OS:
- Ethernet. Direct Link and Router controlled.
- Wifi. Direct Link and Router Controlled.
- Android OS:
- Ethernet. N/A
- Wifi. Direct Link only.
- iOS:
- Ethernet. N/A
- Wifi. Direct Link only.
Don't understand why there's 0 communication when there's a router involved on Android and iOS. I tried all the suggested codes I could find online and ticked all the capabilities that I could find for Android and iOS. Wireshark shows there is transmission going on, but my App doesn't capture the packets.
Snipets:
...ANSWER
Answered 2020-Oct-09 at 14:38Ok, because I was creating sockets for each IP group, packets weren't captured on public networks, unless the APP was on a Microsoft OS device. If I create a UDPClient and bind it to a port, instead of the localIP address, it will capture everything coming on that port, regardless of the sender's IP Address. If you check the IP address of the socket, it will be 0.0.0.0:PortNumber.
QUESTION
I'm doing some changes the ArtNet repository. I want to extend it a little but to do that efficiently I had a couple of question where I don't know the answer on. Please consider the piece of code bellow. As you can see I have three structs:
- ArtNetNode: this contains all node identification information. IP and short/long name can off course change during the program.
- ArtPollReplyPack: this struct has the packed argument attached to it. I use this struct later on so send the udp packet. It really is the entire package as specified in the artnet protocol specifications.
- ArtDmxPack: a similar to point two, but is there to prove the point that data from the node struct is used in multiple packets.
Current implemantation keeps a lot of coppies from specifiic information, I refer to IP address, mac, short and long name. If one of these parameters changes i need to change it on all three locations. Which is not very efficient. My question is how can I make this efficient, so I only have to change the node.ip instead of all three location. Searches led me to pointers, which really make sense. However, I this this will mess up the structure packing since ArtPollReplyPack and ArtDmxPack are really the full data set of the package. Can any help me to overcome this? Maybe by example.
Thank you for your time!
FYI: i'm implementing with Teensyduino on a Teensy 3.2 board with Wiz8xx Ethernet port.
...ANSWER
Answered 2020-Jan-23 at 00:07There's no real way to set all three IP addresses to the same value without setting all three IP addresses to the same value.
However, you don't have to use memcpy() function calls... if you want to be very messy you can take advantage of the fact that IP addresses are 4 bytes, i.e., a uint32_t, so if you cast to that you can assign directly instead of using memcpy, i.e.
QUESTION
I cannot listen to messages being broadcast on 255.255.255.255. The ArtNet protocol docs say that ArtNet controllers broadcast onto 255.255.255.255 on port 6454 (see also here.
When I try to listen to 255.255.255.255 using node.js's dgram module, I get an "EINVAL" errror, because 255.255.255.255 is an invalid address.
I've tried subscribing to 192.255.255.255, 192.168.255.255, and 192.168.10.255 (instead of 255.255.255.255). None of these work either. Tested on Windows and Ubuntu.
ANSWER
Answered 2019-Sep-29 at 23:05socket.addMembership() is used to enroll a socket as a destination for multicast traffic. Your use case here is broadcast, not multicast, so don't try to use addMembership() at all.
You shouldn't need to do anything special to receive broadcast traffic. Just bind() your socket to the appropriate port (in this case 6454) as you are already doing, and then your socket's message-event callback should fire whenever a broadcast to that port is received.
If you want to write a test program to exercise your listener by sending broadcast traffic to port 6454 then that test program will need to call setBroadcast() on its dgram socket before trying to send() to port 6454 at the 255.255.255.255 broadcast address.
QUESTION
I wish to have an animated background like this gif:
.
I don't have a mac or adobe after effects software to create a lottie json for such animation, and i want a more command over animation than simply using a gif. From what i have read over the internet, I have to use either TransitionManager or TranslationAnimation , but i am unable to figure out the correct code for it.
I am also interested in knowing if there is a plugin, or some way to make minor edits to already available lottie files like background color change , items color change, items removal, etc just like the way we could do for simple vector images(Using Android Studio, or at the very least, some free software). I found this lottie file which was doing a very great job for me, but i couldn't modify its colors
...ANSWER
Answered 2019-Aug-01 at 21:03found it! When i logged the values of some variables like view.getX() or view.getRootView().getX(), i was able to figure out, that my view will have its location as 0,0 . so After that it was all a need for finding the screen size to finally make this infinite cloud moving animation. I am not sure if this function is good in terms of memory or performance , but on my device, its running smoothly.
QUESTION
I am programming a little script to change the IPv4 address of a specific Wireless80211 or Ethernet network interface. So far everything is working fine. The script sets the IPv4 with the command prompt and netsh (to control it with C# I use System.Diagnostics).
I want to add the feature, that the script disables or enables all Wireless80211 and Ethernet network interfaces (without a specific one) which you can find in "Control Panel>Network and Internet>Network Connections".
The script is mainly used for ArtNet to DMX to automatically prepare everything to use ArtNet (for people, which do not know anything of the Control Panel and to automate the workflow).
I have already tried it with the System.Net.NetworkInformation namespace, but I have only found a way to get enabled network interfaces. As soon as I disable an interface System.Net.NetworkInformation does not show this interface.
ANSWER
Answered 2019-Feb-01 at 20:35NetworkInterface.GetAllNetworkInterfaces()
Then check the OperationalStatus property
QUESTION
On Ubuntu 16.04.4, I suspect some recent update of some Python system package of having broken my Python 2.7 configuration. Whatever package I try to install or reinstall with a basic sudo python setup.py install it always fails because of gitignore:
ANSWER
Answered 2018-Mar-19 at 00:44It looks like some other package that I had previously installed broke my system-wide Python.
Here's how I fixed in order to install package xyz:
- Browsed
/usr/local/lib/python2.7/dist-packagesin search for occurences of "gitignore" - Deleted folders of all matching occurences (including
setuptools_gititself that matches "gitignore") pip install setuptools_git- In package xyz,
rm -rf dist/ build/ *.egg-info/ - Reinstall package xyz, which now succeeds to install
- Use virtual envs as a lesson
QUESTION
I'm trying to create an electron app with polymer. I tried to import a custom element using
...ANSWER
Answered 2018-Mar-02 at 11:22Imports work without "localhost", as i see in "Electron Api demos". In the index.html file, there are some imports like these:
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