Current design choices

Board: Arduino MEGA
Interface to Computer/Smartphone: Bluetooth
- Have PoC working with Sparkfun Bluetooth Modem - BlueSMiRF Gold
Storage/Logging: SPI EEPROM [part TBD]
Complex Sensor interface: SPI (wired)
- - 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)
- - XBee could substitute for analog wire by using its builtin ADC in, PWM out

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