Written instructions
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Where is the default SyncThing folder in Windows
Syncthing is a great program for file sync between devices.
When you set it up on a new device, it can sometimes be a bit difficult to find a folder that you have shared with the new device in the actual file system. The path might by default look like ~MyFolderName
That actually translates on Windows to C:\Users\SyncthingServiceAcct
So go into that folder and you will be able to find your SynchThing files!
How to import Bitcoins from a paper wallet to the Mycelium app
How to pause browser execution when F8 is not working
Let’s break down a simple trick that can help you manipulate and understand your code better.
To begin with, access your developer console. This can usually be found in your browser’s Developer Tools under the ‘Console’ tab. Depending on the browser you’re using, you might need to use different shortcuts (like F12) or methods to open it. But don’t worry, a quick search on how to open the developer console in your specific browser should get you on the right track.
Once you’ve opened the console, the next step involves entering a particular command. All you need to do is simply paste the provided command line in the console. This is what we’re going to use to manipulate our code. After pasting the command, hit the ‘Enter’ key to execute it.
document.addEventListener('keydown', function (e) {
if (e.keyCode == 119) { // F8
debugger;
}
}, {
capture: true
});
Now, your code should still be in an ‘unpaused’ state. But when you press F8 on the keyboard, it should pause. It’s like freezing a moment in time, letting you thoroughly inspect and understand how your code behaves for specific elements. This can be especially useful when debugging hover-effects and mouseovers.
With this simple trick, your web development toolkit has a new superpower! Experiment, explore, and let your code reveal its secrets to you. Happy coding!”
Do this today! :)
How to Go back in time with a Github Repository
In this video we are loading an older version of a Github repository in order to inspect the code at an earlier point.
Developer tools: Pause code execution with a breakpoint only when a certain loop index is true
If you want to pause your code execution in Chrome developer tools only after a certain iteration number of a loop has been reached, simply right click on the line number and choose “add conditional breakpoint”. Then just type in your condition and your done. Now the execution will only pause if the variable value is what you defined!
Google Family Link: After Unlocking your child’s device with parental access, how do you re-lock it?
I have been using Google Family Link recently in order to keep my child’s mobile phone online while safeguarding it against mature content.
Sometimes I have logged in to the device using the parent access code and that has brought up a question that doesn’t seem to have great answers in the manual of this software: How does one logout from the child’s device after accessing it with the family link parent code?
Here’s the answer: in order to quit accessing the child’s device as a parent, go to the Google Family Link app on the parent’s device and right beneath the circular image on the top, there should be your child’s device listed. Click on the name of the device and click on “lock”. Now the device should only be available if there is screen time left and the time is withing the allowed time limits.
Best free 3D-scanning app for iPhone in 2023
I have been testing out a lot of 3d-scanning apps for my iPhone 12 Pro recently. The Lidar sensor on the phone was one of the major reasons why I decided to make at least a temporary switch from the Android ecosystem to the iOS world. I’m especially interested in creating 3d-versions (or digital twins) of different rooms and spaces. Here are some of the apps I have already tried:
DotProduct ios app
3D Scanner app
Scandy Pro
Qlone
Kiri Engine
Widar
RTAB-Map
3D Scanner
Scaniverse
Modelar
Polycam
RoomScan
Pix4DCatch
Metascan
Heges
Trinio
ItSeez3D (iPad only)
Most of the apps in the list use the freemium model, where you can do a basic scan for free, but in-app purchases are often required at the export stage. There were two exceptions that were free from start to finish:
3D Scanner App and RTAB-Map of which the latter is open source.
I did some scans of the same space with both apps and the process was quite enjoyable with both. The quality was however somewhat more limited with the 3D Scanner App and in the end I was able to to get best results with RTAB-Map. So out of these scanner apps that I tested I would recommend RTAB-Map. It has versions not only for iPhone, but turns out it’s a very versatile app used for many purposes and it has also desktop releases for the major operating systems, including Windows, Mac and Linux.
I did experience some problems when I tried to do a really detailed scan. RTAB-map probably ran out of memory on my iPhone and crashed quite frequently when post-processing the scans. Luckily it turns out that you can simply export the database from the iPhone in order to do the processing on the desktop version instead. It might not be obvious at first how the RTAB-Map database can be accessed or exported on the iPhone, but you simply need to long-press on a scan in the library and choose “share”.
After you haved shared your database and downloaded it to your desktop computer, you can simply import it to the desktop version of RTAB-Map. I must say I found the interface to be rather confusing. For example, when I was looking for the option to export a textured mesh, the way to do it was to choose the “export 3d clouds” option, although one might thing that a mesh is not exactly a “cloud”. And there wasn’t a typical option to just “export a textured mesh” but you have to check the “meshing” checkbox and then the “texturing” checkbox for the texture options. And after that I actually had to close and the re-open the export to be able to see the “save” button. So quite quirky, but it worked out well in the end.
One more piece of information I want to share about using the RTAB-map on the iPhone: one time I had it crash right after a scan and at first I thought the scan had disappeared completely but after some searches in the “issues” page of their Github, I found out that some kind of recovery might be possible in the latest version. The problem was that I just couldn’t find any recovery option in the app interface. Finally I gave up and decided to do a rescan and when I chose to do a new scan, that’s when the recovery dialogue for the previous scan finally appeared and I was able to recover my crashed scan.
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