The ATMs let you exchange bitcoin for cash, or vice versa by scanning a QR code from the digital wallet application on your phone. To buy bitcoin with a pre-paid debit card you will have to exchange it locally using LocalBitcoins. Inside a Russian cryptocurrency farm. Ledger Nano S. There is a Bitcoin ATM that offers one-stop solutions to people with cash who want to buy Bitcoin or other cryptocurrencies. Yet a key reason the price of bitcoin keeps going up is, well, because it keeps going up. One you enter your card information press «Bezahlen»: That’s it!