Balloon Launch 1

Hardware

• Arduino Due

• GPS Module

  • Adafruit Ultimate GPS Breakout

Software

Prerequisites

1. Install git

2. Install PlatformIO

3. Integrate your IDE with PlatformIO

   • Atom is recommended but using the PlatformIO CLI directly with your favourite editor is even nicer

Usage

• The Atom IDE is pretty straight forward to use, but here are some useful tips:

  <richard, elaborate on this, what buttons/keyboard shortcuts to compile/upload etc>
  

• If you're using the command-line, here are some common PlatformIO commands (make sure you're in project root):

   # build the project
   platformio run
  
   # upload to board
   platformio run --target upload
  
   # serial monitor
   platformio serialports monitor
  
   # library stuff
   platformio lib

Overall System

• Modules are created once on setup and globally stored in an array
• No dynamic memory allocations except in initialization
• Modules may persist data/send data over uno->radio link by overriding the appropriate methods
• Watchdog added
• Globals.h added
  • Allow writing to Serial using c++ style cout and cin streams
  • WATCHDOG_RESET() method to appease the watchdog
• Added a project editorconfig, makefile, and improved ycm completion

Modules

• Scheduler and Tasks
  • IMPLEMENTED, WORKING: Successful multitasking of modules
• Radio
  • IMPLEMENTED, WORKING: Successful relaying of GPS telemetry (lat,long,time,alt) over due->uno->radio link
  • More testing needed to see if Modules can reliably relay information over the APRS data field
• GPS
  • IMPLEMENTED, WORKING: GPS gets satellite fixes, logs data to SD card, and provides RTC+telemetry to system
  • Only source of RTC for now
• SDCard
  • IMPLEMENTED, WORKING: SDCard reliably persists all data from all modules
• StateHandler
  • IMPLEMENTED, UNTESTED
  • Analyze GPS and Barometer values and relay state changes to system
• IMU
  • IMPLEMENTED, UNTESTED i2c address crashing the due on runtime)
  • Might change implementation and hardware IMU to the mpu6050
• Buzzer
  • IMPLEMENTED, UNTESTED
  • Toggles a digital pin to turn on a buzzer
• Barometer
  • IMPLEMENTED, UNTESTED
• Photocells
  • IMPLEMENTED, UNTESTED
• Temperature sensor
  • IMPLEMENTED, TESTED TODO: Add support for multiple temperature sensors TODO: Decide on the R2 value