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CIVA INS'ish V1

my civa ins is based off the real one. If you wish to know more about the real one please this link will help understand the history and functions and even the manual:
https://en.wikipedia.org/wiki/Inertial_navigation_system
http://scr.philippmuenzel.de/CIVA-User-Guide.pdf

Anyways my CIVA works of the similar principle, too simplify it, my CIVA is designed to store 9 GPS co-ord's that can be externally transferred to a GPS autopilot. This has 9 buttons and few lights that tell and dictate the CIVA

BAT: the civa battery is low and needs a external source to charge battery
ALERT: the CIVA is telling the user that they are 1 km before the target waypoint
X/Y is negative: telling the user that the entered waypoint is negative to avoid confusion
WARMED UP: the CIVA is ready for alignment mode
NAV RDY: the CIVA is telling the user, that alignment is complete and nav mode can be enabled

WRITE: takes whatever is in the keyboard and writes that in the selected waypoint
STBY: will turn on the CIVA and enable most functions and begin warmup
ALIGN: will begin to track its own GPS co-ord's and after completion will enable the NAV ready light
NAV: will begin to transmit the selected GPS co-ord's to external connection and will tell the CIVA that it is ready for flight

POS: will display the current co-ord's in the CIVA X and Y
WYPT: will display the co-ordinates in the selected waypoint
WIND: will tell you the direction where wind is blowing TO in the X and wind speed in Y
DIS/TIME: will tell the user the distance from the current POS to the waypoint selected in the X and a estimated ETA in the Y. (distance in km, and ETA in minutes)

large keypad: what will take the inputs and store them into the selected waypoint if write mode is enabled

Instructions on how to use
1. Put CIVA into STBY mode and wait for warmup complete light
2. Enable the ALIGN button and enter in all waypoints
3. If nav ready light is on, then enable the NAV function
4. Check the selected waypoint co-ord's are displaying in target waypoint indicators

requirements:
x1 Wind sensor
x1 Linear speed sensor (in horizontal mode)
x1 The microcontroller
x1 Small battery

This is still a work in progress and if you want to help out in making the future versions from 2 onwards please drop a comment letting me know if you want to help