GWU-Sat Version 0.4

This is the beginning of the codebase for GWU-Sat which aims to send experimental thruster units into LEO.

Note Salvo Files are not apart of this codebase and need to be aquired. This project is using a large memory model under the pro-lib version of Salvo

Programming Language

This project will be programmed mainly using C for the OBC system.

Things to Do

Priority

• Build inside compiler

  • Run Simulator
  • Include introductory tasks like StartSysten and SystemInit
  • Create basic system tasks

• Build onto PPM D2

  • Get to compile and push, must use pick-it 3
  • Get serial output from Pumpkin Dev Board

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• Begin Testing of components

  • Battery (Dead, need to procure)
  • Transceiver (Dead, procured)
  • EPS (Dead, need to procure)
  • OBC (Alive, long term sims ran smoothly)
  • ADCS (Not tested)

• Create Barebones start-up system

  • Send Pings to each individual component
  • Begin a timer
  • Conduct Long haul test of each version (12 hours)
  • Interact with digipeating system

• Tasks

  • System Task, goes through sys initialization then destroys itself
  • Task Idle, enter this mode when no other tasks are available
  • Status Check, checks all components in this task on a periodic timer
  • Datalogging, Log all necessary data that will then be send to our Endurosat transceiver
  • Creating data processing functions for uplinked commands

• Digipeating System

  • Conduct link budget calculations to ensure enough margin. (See comms document)
  • Create working digipeating system using SDR at 436.42 MHz as per IARU coordiation letter (see comms document)
  • Create 3D printed cubesat mount for digipeating system TinkerCadLink
  • Plug into 3v and Grnd busses on the main system. (This is a completely seperate system so this is all that is needed but waiting for full part procurement)

• Thrusters

  • Inside Main.c and satellite_defs.h make experiments subroutine