Comment by juergenpabel
1 year ago
I build something very similar, but for playing music/audio books in my kids rooms. But this is not why I am commenting: I found "HERMA 5028 Universal" stickers to be a very good fit for rfid/nfc cards; I don't know if they're available where you live, but here in germany they're a great solution for labeling cards.
PS: I will also publish my solution once I rewrite a few parts of it (cleanup).
I'd be super interested in your writeup, I'd like to build a homemade Tonie for my kids as well. Any way you could contact me when you're finished or do you have a blog I could regularly check out?