Card 2.0® is a paper-thin, flexible computer platform in a payment card form factor. The device is designed to be as thin, flexible, and durable as a traditional payment card and last over three years on a single battery charge. The device includes a number of peripheral management circuits that are directed to power management, timing, and control. Accordingly, a number of peripherals may be added to the platform - such as buttons, to allow a user to enter information into the card, and displays, to allow users to receive information from the card.