The exec function callback has error, stdout and stderr arguments passed to it. See if they can help you diagnose the problem by spitting them out to the console: exec(‘~/./play.sh /media/external/’ + req.params.movie, function (error, stdout, stderr) { console.log(‘stdout: ‘ + stdout); console.log(‘stderr: ‘ + stderr); if (error !== null) { console.log(‘exec error: ‘ + … Read more
I think this might be an XY problem. What I have understood is that you want to send a button press from the micro:bit to the RPi via Bluetooth Low Energy (BLE). If that is the case, then there is a more efficient way to do this. In the Bluetooth Profile for the micro:bit there … Read more
Download .Net Core 3.1 SDK from HERE Make Directory: sudo mkdir /usr/share/dotnet/ PATH to environment: export PATH=$PATH:/usr/share/dotnet/dotnet export DOTNET_ROOT=/usr/share/dotnet/dotnet or just a symlink sudo ln -s /usr/share/dotnet/dotnet /usr/bin/dotnet Copy by Extracting: sudo tar zxf dotnet-sdk-3.1.100-linux-arm.tar.gz -C /usr/share/dotnet/ Confirm Installation: dotnet –info you can find in detail from Here
There appears to be some backward compatibility issues with SocketIO. You can uninstall python-engineio, python-socketio (and Flask-SocketIO just to be on the safe side) and reinstall lower versions. The combination that worked for me was: Flask-SocketIO==4.3.1 python-engineio==3.13.2 python-socketio==4.6.0
What does the “not found” in this case mean ? This usually means that the executable cannot find one or more (shared) libraries to satisfy its external symbols. This usually happens when no libraries are stored in the initramfs, or there is a shared library missing that the executable needs. This can also happen if … Read more
movie is not a sub package of pygame Use it like this: movie = pygame.movie.Movie(“file.mpg”) Note however: The movie api is deprecated and your pygame will most likely not contain any code for this api. The code will just throw a NotImplementedError exception. Sadly you cant use pygame for movies like this anymore. Here Lenard … Read more
Another, perhaps simpler option might be to use Redis. Redis is a very high performance, in-memory data-structure server. It is simple to install on a Raspberry Pi, Mac, Linux Windows or other machine. It allows you to share atomic integers, strings, lists, hashes, queues, sets and ordered sets between any number of clients across a … Read more
Set the option after the socket has been successfully initialized. So, after: sockfd = socket(AF_INET, SOCK_STREAM, 0); if (sockfd < 0) error(“ERROR opening socket”); You can add (with standard C99 compound literal support): if (setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, &(int){1}, sizeof(int)) < 0) error(“setsockopt(SO_REUSEADDR) failed”); Or: const int enable = 1; if (setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, &enable, sizeof(int)) … Read more
As per your question your Chromium binary is of version 56.0.2924.84. So keeping this constraint in consideration the solution would be to download either of the following ChromeDriver version from ChromeDriver Google Storage ChromeDriver v84: Supports Chrome v84 ChromeDriver v83: Supports Chrome v83 ChromeDriver v82: Was intentionally skipped ChromeDriver v81: Supports Chrome v81 ChromeDriver v80: … Read more
Yes! You can use your Raspberry Pi to scan for iBeacons. We’ve put together a script below that does this, you can also do it yourself with these steps: Start a background process that does a bluetooth LE scan: sudo hcitool lescan –duplicates & With the –duplicates setting the scan will not ignore multiple packets … Read more