• Concept

    SUF • 05/04/2015 at 07:54 • 0 comments

    Here I want to define the project phases

    - Collect a few Arduino shields for testing and to make the pinout as compatible as possible (I've Pololu Zumo robot, Seeedstudio Starter shield, Freescale sensor shield, an Ethernet and a MP3 shield already on hand)

    - Design a power supply what is flexible enough to handle the 3.3V and the 5V requirements. I think about the following:

    Power sources:

    1. Launchpad's 3.3V (3.6V ?)

    2. USB connector on the booster pack

    3. External power connector on the booster pack (let say 3V-15V ?)

    Automatic switching between the sources

    - Handle the level shifting requirements between the 3.3V and the 5V (also on I2C and maybe on analog side)

    - Handle the pin shortage - The MSP430G2553, what I intend to use only has 16 usable data pins. It looks like this will not be enough for some of the Arduino shields. I want to use some I2C or SPI based bus extender to handle this.