[APP][FREE]YABLO: Yet another Air BLOwer

[JogglingDroid]

Hello, as a support to videos that we do in Youtube, sometimes we program some applications.
In particular we do experiments on physics for kids and in one video we prepared an Air Blower application
that can turn of a candlelight. (Video:

).
If you download the app, it would be nice to know if it works with your particular mobile phone and at which frequency. The interface is rather minimal as the purpose is more to explain the experiment.

Anyway, all the details are below. Any advice is very welcome. Thanks in advance.

Link to the App in Google Play:
https://play.google.com/store/apps/details?id=com.jogglingdroid.yablo

The Description:
NOTICE: In some phones the application may not work, depending on the speakers that your mobile phone has.
NOTICE: the application was tested on an LG Phone and on an ASUS Tablet.

YABLO is an air blower application to show kids how sound works. In particular the application produces a sound wave with a frequency that can be selected by the user. At a given frequency, depending on the mobile phone, the soundwave can blow air to turn off a near candlelight or move little pieces of paper. In order to help the user in finding the right frequency, the application also provides a small explanation about the frequencies to be used to observe the desired effect on the candlelight.

The application does not store any sort of data. It requires network permissions to show advertisements.

The application allows to set the frequency (between 0 and 2000Hz) of the soundwave and its amplitude (between -16Db and 0Db).

In order to work, the user has to keep the activate button pressed.

See the video or contact us for further information about the application.


Video Presentation:

The interface:

The effect on the flame

 

[Unforgiven]

Interesting. I may try this with my son tonight.

 

[JogglingDroid]

App number 2:

The Italian Race: a toy app.

Link to the APP in the Google App store:

https://play.google.com/store/apps/details?id=com.jogglingdrod.theitalianrace

Description:

The Italian Race is an application for mobile phone vibration races.
It is a toy application, and it all summarize to:
It uses the mobile phone vibration engine and accelerator to move the mobile phone downwards in a slope and produce sound events when a big jump or a big movement (it is relative to the slope) is produced.

The application equips a Q-Learning algorithm that learns the best vibration pattern to move faster on a particular slope, by controlling the vibration engine and receving as reward the medium acceleration produced. During the descent, if the movement is recognized to be particularly quick, the application can produce recorded sounds.

The video description shows an example of usage.

Copyright attributions:
The Logo of the Italian Race was designed by Freepik.com.
The audio tracks where produced by the author of the software, except for the extract from the Rigoletto of Verdi: La donna è mobile (Woman is fickle), canzone from Giuseppe Verdi\s opera Rigoletto (1851) performed by the tenor Enrico Caruso (1908), whose license is:
"Under the Public Domain Mark 1.0, This work has been identified as being free of known restrictions under copyright law, including all related and neighboring rights."
Screenshot 1:

Screenshot 2:

Image 3:

The application is for free, it has ads.
Enjoy!

 

[JogglingDroid]

Hello, third application, after a while

ToyRecognizer with OpenCV, Link:
https://play.google.com/store/apps/details?id=com.jogglingdroid.toyrecognizer

Description:
ToyRecognizer is an OpenCV application that can recognize toys or drawings by means
of computer vision algorithms. The application will match a photo taken by the user with the
5 closest descriptions available in the internal database of the application.
When the user selects one of the descriptions, an image
will be produced, visualizing the result description. The user can then navigate the obtained results.

The application allows to store images of toys taken by the user, indifferently from whether
the model is a drawing or an action figure. The application asks the user to provide a description
associated to the new inserted model in the ToyRecognizer database.

The application depends slightly on the illumination and on the background used for the photos, as it may take keypoints for the matching anywhere in the figure. Pay attention to make sure that the background is not more complex than the main subject in the photo, or probably the results obtained will not be very accurate. Our advice is to position the toy on a monochromatic background (possibly a white/grey/black sheet).

The application does not store user data, it is for free, but it runs advertisements, so it requires the permission to use the internet connection.

Video:

Image 1:

Image 2:

Image 3:

 

[JogglingDroid]

edit

 

[The_R]

Watched the video in the first post. Quite Interesting! Subscribed to your youtube channel!

Also that's a really neat idea for an alarm, great for someone like me who just turns a regular alarm off and goes back to sleep!

 

[JogglingDroid]

Hey thanks ! The channel maker is my wife, I am more the "engineer in the closet" let's say eheheh.