WEEK THREE: June 9, 2016

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1. Cut out inlays for the APRS case and spot GPS case. (Sofia) SEE PICTURES 1 AND 2 SUCCESS

2. Weigh the APRS with the batteries installed, the mass is 453.6g. (Sofia)

3. Worked on the GPS code. (Nick, Patrick)

    Important notes on the gps_raw.py script:
  • Unlike every other program, gps_raw.py opens two files out of concern for the serial bus. If there were two programs running at the same time and making use of the same serial port, the serial might become busy, causing the programs to fail in reading the nmea sentences off the gps. 
  • gps_raw.py will only work when two conditions are met: 1) the microSD card is mounted onto the beaglebone and 2) the microSD card is set to read and write mode. If the microSD card is locked you MUST unlock it with the  SD card adapter. To unlock the microSD card:
    • Insert microSD card into the SD card adapter
    • Flip the switch up  
    • Insert the adapter into a computer (only when the card is in the adapter and mounted onto a computer can the mode be changed). If you want to double check that the card is unlocked, copy and paste a file into the card
    • Then on the computer, unmount/eject the card
    •  Remove adapter from the computer and remove the card from the adapter

PICTURE 1: APRS Well



PICTURE 2: Spot GPS on the side. Vertical orientation.

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