Whistler TRX-1 - Nothing to Scan

My year old scanner was working fine, but after plugging it into another laptop and running the desktop application (TRX-1Install_3.35.0.675.exe) , I got the "Nothing to Scan" message on the handheld scanner.  This occurred after updating the PC application with a library import and using the handheld scanner to select objects to scan.

Apparently, in playing around with the desktop app, I corrupted the SD card.  Luckily, I had previously backed up the SD card contents.

Anyway, I figured that the "Nothing to scan" message had something to with the scanner not being plugged into the original PC and desktop app configuration that set up the scanner a year ago.

I decided to start over by turning off the handheld and plugging it into the new PC.

After starting the desktop application installed from TRX-1Install_3.35.0.675.exe ( there is also a setup.exe on the SD card), I performed a library update as follows:

Then I reformatted the SD card with options to reconfigure.

 

 

After the reformat and reconfiguration of the SD card, I turned to setting a V-scanner folder with the following options

After this was set, I closed the desktop application and safely ejected the handheld scanner, which is essentially just the SD card.

 Now when I "Browse Library" looking for objects to scan and assign to Scanlist 001, the scanner scans the imported frequencies just fine.

Whatever I did fixed something.

Now, my main concern is that the back up of the original SD card does not match the current SD card contents, but I won't worry about this unless the scanner stops working.

The new SD card does not contain the setup.exe software for the desktop application, but I can always get it up from https://whistlergroup.com/pages/trx-1-downloads-1

 

WISH and Reddit Wallstreetbets

 Two days ago, I felt compelled to join the meme stock potential of $WISH on Reddit's /wallstreetbets and explain my investment thesis.

 

Google Translate listing languages in dropdown

This code lists languages in a sort of spinner drown down list, which is good for viewing on a mobile device.

<head>
<script type="text/javascript">
function googleTranslateElementInit() {
  new google.translate.TranslateElement({pageLanguage: 'en'}, 'google_translate_element');
}
</script>
<script type="text/javascript" src="//translate.google.com/translate_a/element.js?cb=googleTranslateElementInit"></script>
</head>

<body>
    <div id="google_translate_element"></div>  
</body>

 

This script formats the languages in a pop up box that does not resize or scroll to fit a mobile screen.  This is bad.

<script type="text/javascript">
function googleTranslateElementInit() {
  new google.translate.TranslateElement({pageLanguage: 'en', layout: google.translate.TranslateElement.InlineLayout.SIMPLE}, 'google_translate_element');
}
</script><script type="text/javascript" src="//translate.google.com/translate_a/element.js?cb=googleTranslateElementInit"></script>

Android App with Joystick and Button Animation

I created this app to experiment with button animations and a joystick interface.  None of the interactive elements do anything. That is up to you to fill in with intents, fragments, activities et. al.

Source code and apk:

https://github.com/shimart96/MyJoystick2

 

 

Mossberg 500 Forearm Change

Change forend

https://www.youtube.com/watch?v=QOlH-_Ky2oU

Takedown:

 https://www.youtube.com/watch?v=oahhxCMDFB8

Current set up:

 

 

 

Android Studio and GitHub

Open an Android Studio project that you wish to upload to GitHub. 

Android Studio was not showing a Git or Github option under File | Settings | Version Control.

After installing Git for Windows from https://github.com/git-for-windows/git/releases/download/v2.31.1.windows.1/Git-2.31.1-64-bit.exe,

I then selected File | Settings | Plugins and checked the boxes for Git and GitHub.

Now go back to File | Settings | Version Control to make sure that path is set correctly.

Go to VCS | Enable Version Control | Git and then theoptions should look like this.

Send project to GitHub through the VCS menu.

 

If get the message: Invalid authentication data 404 not found, then go back to http://github.com

and create a Personal Token through dropdown on User Icon | Settings | Developer Settings

After creating and copying the token, go back to Android Studio File | Settings | Version Control | GitHub and add account using the token.

 Now click green arrow in the Android Studio toolbar.

Then share on GitHub through the VCS menu and using the token to login to GitHub

A list of useful links.

• https://stackoverflow.com/questions/37093723/how-to-add-an-android-studio-project-to-githubhttps://stackoverflow.com/questions/37093723/how-to-add-an-android-studio-project-to-github
• https://www.geeksforgeeks.org/how-to-upload-project-on-github-from-android-studio/
• https://code.tutsplus.com/tutorials/working-with-git-in-android-studio--cms-30514
• https://getstream.io/blog/use-github-android-studio/
• https://stackoverflow.com/questions/16644946/how-do-you-synchronise-projects-to-github-with-android-studio

 

Great Circle Calculation

I need to get all MySQL geotags within 10 miles of my current location.

Given that my current location is latitude = 34.034940, longitude = -117.950060 and I have a MySQL table of geotag rows with columns for lat and lng, then my query will be:

SELECT `idtags`, `lat`, `lng` FROM `mygeotags` WHERE (((acos(sin((34.034940*pi()/180)) * sin((`lat`*pi()/180)) + cos((34.034940*pi()/180)) * cos((`lat`*pi()/180)) * cos(((-117.950060 - `lng`)*pi()/180)))) * 180/pi()) * 60 * 1.1515) <= 10 

ORDER BY `idtags` ASC

I derived this query from an example at https://martech.zone/calculate-great-circle-distance/

Another query using radians can be found at https://stackoverflow.com/questions/574691/mysql-great-circle-distance-haversine-formula

This is a version going against my geotag table substituting $lat, $lng for my current location.

SELECT `idtags`, `lat `, `lng`  FROM `mygeotags`  WHERE ( 3959 * acos( cos( radians($lat) ) * cos( radians( lat ) ) * cos( radians( lng ) - radians($lng) ) + sin( radians($lat) ) * sin(radians(lat)) ) ) <= 10 

ORDER BY `idtags` ASC

Helps to visualize parallels of  latitude and meridians of longitude.