STA's PocketQube

Python repository

Development repository for our PocketQube-project.

How to use

Put contents of lib-folder into lib-folder of E:\CIRCUITPYTHON drive on your board. Put code.py into root folder.

Architecture

flowchart TD


style Node1 fill:#ede26b,stroke-width:2px,stroke:#000000

subgraph "Modules and sensors"
  
  Node20[LTC2934] --> Node1{OBC}
  Node100[IMU2968] --> Node1
  Node40[DRF1268T] --> Node1
  style Node20 fill:#bbf
  style Node100 fill:#bbf
  style Node40 fill:#bbf

end

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graph LR
    C{Main Loop} --> G
    subgraph State Machine
    G{{Read sensors}} -->|Look at thresholds| I{{Choose next state}}
    end



    I -->|Transmitting| K{{Transmit data}}
    subgraph Communications
    K --> M((Idle))
    M -->|Signal received| N{{Execute commands}}
    end
    M -->|Timeout| L
    N --> L
    I -->|Not transmitting| L[Next loop]


    style G fill:#a2e0cd,stroke-width:2px,stroke:#000000
    style I fill:#a2e0cd,stroke-width:2px,stroke:#000000
    style C fill:#ede26b,stroke-width:2px,stroke:#000000
    style L fill:#ede26b,stroke-width:2px,stroke:#000000
    style K fill:#bbf,stroke-width:2px,stroke:#000000
    style N fill:#bbf,stroke-width:2px,stroke:#000000
    style M stroke-width:2px,stroke:#000000
    

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States

Idle

Threshold to Enter

No others met.

Functions

• Log sensors & state
• Reading all sensors

LowPower

Threshold to enter

Certain voltage reached.

Functions

• Log state
• Read only critical sensors

Comms

Threshold to enter

Antenna having received signal.

Functions

• Receive commands
• Log sensors & state
• Transmit log

TODO

Encoding for Comms

Command Parsing

API for analogueIn devices

State Machine & Power modes

Non intrusive Exception handling that ensures stable runtime

Globally updated log to downlink, log == stdout?

Testing of libraries for external modules