Production Unit Development Overview
===

This is a document recording notes for the path to creating a working production unit.

Hardware
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* Get SIM5320A GPRS/GPS working
  - Need to automatically start and connect on boot
  - Need to confirm GPRS antennae and GPS antennae work inside or at other positions
    in housing
  - GPRS needs to have some pin tied for automatic power on (potentially rpi controlled)
* Connect/stack SIM5320A in line with screen
  - make sure screen and serial have no physical pin conflicts
* Make breakout board for power connector
* Find solution for speaker amplifier
* Need to figure out case. Stop-gap of retrofitting to current case
  - New case need only to attach to the four screw configuration already in place for
    DIU bottom plate
* Look into brighter screen

Software
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* Add 'quick dim' feature to screen
  - Screensaver will light back up on press
* Better screen diagnostics
* Debug/testing of driver interface