ace-n/Piper

Piper: A bitcoin hardware paper wallet printer and so much more. Check out piperwallet.com for more info!

CoinMachine

A USD Coin to BTC converter.

Hardware Components

• Coin Acceptor: http://www.adafruit.com/products/787
• Thermal Printer: http://www.adafruit.com/products/597

Code Components:

• GUI: Used to display current price and confirm transaction with user.
• Coin Acceptor: Serial connection to coin accepter to recognize pennies, nickels, and quarters.
• Receipt Rendering: Print out a QR code, public key, private key, and the balance.
• BTC Transfer code: Send money to wallet from local wallet or Coinbase API.