The aim is to support visually impaired and blind people with a device, that allows to record audio in the .WAV format on a SD card and call that information by an NFC tag.

So in this device is an actual NFC reader and writer! So why is it interesting? Not everyone has a smartphone and some people cant cope with the complexity of an smartphone or don’t want to. This device has two buttons. One for recording, one to play the recorded audio and if both buttons are pressed the NFC tag will be assigned to the actual audio. This project is explicitly a prototype and can be developed further. I would be happy to read about your approaches and ideas to get a better device!