Changes

= Current design choices =

** Current design choices

* Board: [http://arduino.cc/en/Main/ArduinoBoardMega2560 Arduino MEGA]

*** Board: [http://arduino.cc/en/Main/ArduinoBoardMega2560 Arduino MEGA]

* Interface to Computer/Smartphone: Bluetooth

*** Interface to Computer/Smartphone: Bluetooth

** Have PoC working with [http://www.sparkfun.com/products/582 Sparkfun Bluetooth Modem - BlueSMiRF Gold]

**** Have PoC working with [http://www.sparkfun.com/products/582 Sparkfun Bluetooth Modem - BlueSMiRF Gold]

** Storage/Logging:  SPI EEPROM [part TBD]

*** Storage/Logging:  SPI EEPROM [part TBD]

** Complex Sensor interface: SPI (wired)

*** Complex Sensor interface: SPI (wired)

*** XBee could substitute be creating simple wireless serial link from "slave" sensor-connected Arduino to Arduino MEGA

**** XBee could substitute be creating simple wireless serial link from "slave" sensor-connected Arduino to Arduino MEGA

** Simple Sensor interface: Analog In Pin [ADC] (wired)

*** Simple Sensor interface: Analog In Pin [ADC] (wired)

*** XBee could substitute for analog wire by doing native ADC in, PWM out

**** XBee could substitute for analog wire by doing native ADC in, PWM out