Initialize Instrument Actions

MSP430
- set echo off

Garmin GPS
- disable all NMEA strings
- enable GPRMC, GPGSV, PGRMT

Medusa
- set echo off
- set SA IP address

Seabird
- get prompt
- set data output: FORMAT=1
- set clock (doesn't seem to work?)

PowerCan/SerialADC
- run P2 APP (may be in picoDOS)
- get attention