I don't know what to do

I am a beginner at Arduino, and I want to make a simple file transfer device using an Arduino R3. I want to be able to transfer files to a TI-84 or TI-83 graphing calculator. I am trying to make it possible to upload multiple files with a scroll wheel(potentiometer) to change which file needs to be changed. Any help would be appreciated.

What sort of interface do the calculators have ?

Use your computer, the TI driver and the TI-84 programs you download.

At least the TI-83 got serial.

What would be the benefit of using an Arduino over a computer?

Test season is upon them.

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Oh right!

"You can only use your calculator, no phone or anything connected to internet"
"... didn't say anything 'bout an Arduino.."

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It is not a simple problem. Spend 5 minutes studying the TI communications protocol to see that.

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Use TI-Link cable - but maybe you are a decade or tow too late for that: silver usb cable

You might find DIY-cables here: https://ticalc.org/ - same goes for the serial protocol used by these TI calculators. Also you find some rather old projects on the net, e.g.: GitHub - jw0k/serial2ti83: A program for Arduino Uno that makes it possible to connect a TI-83 calculator to a computer

I mean transferring games, not connecting it to the internet. I want to start selling the games to other people, but not have to use ticalc.link all of the time and just be able to do it right then and there.

Something kind of like what ti connect or ticalc.link does

Do you have documentation on the format of the file transfer? Are there special message formats for the file ID and the end of the file data?

I doubt this story is true.

Why not transfer TI to TI?

Because I cannot find the cord, and I enjoy using unnecessary devices for fun.

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It is mostly just 8xp files

Yes, you can. You just do not want to try. You want others to do your work for you, including mashup the code and hardware for this. Why not learn programming and try. It is your project, after all.

That tells me nothing. Can you give links to the documentation?

That is what I am trying to do, the problem is I have no idea on how to start the code or get other files onto Arduino, after that I can program the hardware and the scrolling mechanism. It is just the file transfer that I do not know how to do.

8XP Binary File Format & Structure Documentation ยท GitHub is this what you mean by documentation.

Exactly what documentation means!

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