Devlog 2 - Software Progress

Overview

Hey everybody, I’ve been on vacation and haven’t been fully locked on Stardance, but I’ve still been able to get some work in that I would love to share with you all.

Flightscope

If you’re new here, this is the hardware side of my big summer project, Flightscope. Find my other work in this project.

What’s New

In this chunk of work. I have (for now) completed the subsystem code for FlightCore (my flight computer, powered by an RPi Pico 2). Here is a map of how the program works:

      ┌────────┐
      │ LiPo Battery │
      └────┬───┘
                      │
                     ▼
    ┌───── ───────┐
    │ Raspberry Pi Pico 2│
    └──────┬── ───┘
                          │
       ┌─────┼──────┐
      ▼              ▼                  ▼
┌───┐ ┌────┐ ┌─── ──┐
│ IMU  │ │ BMP  │ │ microSD│
│Accel│ │Altim. │ │ Logger   │
└─┬─┘ └─┬──┘ └──┬── ┘
      └── ──┼ ──────┘
                      ▼
     Sample Sensors (200 Hz)
                       │
                      ▼
     Pre-launch Ring Buffer
                       │
                      ▼
     Launch Detection Logic
                       │
                      ▼
      Flight State Machine
                       │
     Boost → Coast → Descent
                       │
                      ▼
       Write Flight CSV
                       │
                      ▼
      FlightScope Dashboard
                       │
                      ▼
  Graphs • 3D Replay • Analysis

Conclusion

Flightcore is making some great progress on the software side, and here’s a picture of the fun I’m having in Onshape designing the avionics sled! Look out for that in the next devlog. Thanks for getting this far! I would love to see what cool things you guys are working on too. Leave a comment, and I would love to check out your projects!

Edit: I apologize for the attachment spam, I can’t find the option to delete them.