Can I transfer data to a pen through arduino? I have been searching for options but they all suggested to use a sd shield, data loggers, etc
I am using a standard MP3 chip to my arduino uno to provide sound but at the same time I am storing some data from sensors in my arduino. Now I would like to write all data recorded in a file and transfer to the sd card of the MP3 chip. The goal is transfer that data to my computer through the sd card of the MP3 without adding external resources as a shield (and also, a regular user wouldn't like to have 2 sd card in a device to different purposes).
Does anyone have a suggestion? Thanks