ESP32 s3 file injector

[Segamegadrive]

Hello, I would like to know how could I make my ESP32 s3 act as a file injector where when the esp would be connected to a device it would create a really small string for example “hello” in its internal memory and automatically paste it as a txt file into the root folder of the device.

[Sprite]

You need to be a bit more clear on what you want: what device are we talking about, how do you expect the ESP32S3 to interface with it (USB, Samba, SPI, ...?), were does the string come from, ...?

[Segamegadrive]

The device would be a graphing calculator that I wanted to interface with through usb. I want to make this as a proof of concept so I was thinking if the string would only be a 1-3 bytes it could be stored directly on the esp.

[Sprite]

Okay, sounds like it is possible. Does the calculator just look like an USB stick if you plug it into a PC, or do you need to run special software to talk to it?

[Segamegadrive]

It pops up in the file explorer and I can read/write files from and to it without any 3rd party apps

[Sprite]

Sounds like it works like a standard USB mass storage device then. In that case, this example should already do most of what you want.

[Segamegadrive]

In that case I am guessing I should install esp idf for vs script?

[Segamegadrive]

Posting an update. Everything worked perfectly and the esp creates a folder in the calculator with files inside. Big thanks to sprite for helping me find the example I needed and I will no be able to continue working on the project

[Sprite]

Glad to hear you got it working!