My first AVR32 project

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Uses a UC3B0256 as an add-on board for our existing seismic data acquisition system.

Measures temperature, humidity, barometric pressure, and has a SDI-12 interface for interfacing to a commerically available weather station.

Has plug in analog input boards, the one shown is one channel, 24 bit, with a selection of output frequencies of 40, 20, 10, and 1 Hz. We also plan on doing a 3 channel version for 3-axis sensors.

Communicates with the host using 115Kbaud RS-232. Phase locks it's TCXO to the host's GPS time to a few microseconds for accurate sampling.

Started back in October, I did most of the hardware design and all the software and the customer did the PC board design and manufacture.

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