DIY Magnetic Strip Card Decoder
Using a magnetic strip reader incorporated with, of course, an Arduino, you can scan what those strips and see the data stored on it. A bit more hacking and you could also write data back onto the card and create duplicates as well. If you’re willing to set up additional hardware, you can check out the Stripe Snoop software. It will turn that computer lingo into actual decipherable characters. Check out the tutorial to get started.
