Share My Creation RC plane Center of Gravity finder (automatic)

Hi all,

I have just published on Hackaday a new electronics device to find Center of Gravity onRC planes.

Link is here : https://hackaday.io/project/202834-rc-plane-center-of-gravity-finder

Of course an Android App is there to display this kind of information :

It's based on two digital scales controlled by an ESP32 MCU.

It works with big or small planes !

• Everything open source open hardware : https://github.com/f2knpw/RC_plane_Cog_finder
• PCB available here : https://www.pcbway.com/project/shareproject/RC_plane_CoG_finder_390a1266.html
• 3D printed parts (or laser cut ones) here : https://www.printables.com/model/1263687-rc-plane-center-of-gravity-finder-automatic

 

[freedom2000]

And here is a video showing how it works :

 

[klaus]

I had a look at your video.
Very nice project !!!

 

[freedom2000]

Just added a rotary encoder and a small Oled display for those who do not have an android phone (shame !)

 

[freedom2000]

The android App allows now to keep track of all planes into ta database.

The data base is accessible here on top of the screen

There is also an option to export the whole database into a .csv file that you can open with any spreadsheet viewer

I must say that I hate more and more Android's "authorisations" to access file system. It becomes a complete mess... just to read and write a text file :-(