X-Sub Telemetry System is preserved as a historical engineering and educational archive. Development occurred primarily in 2015, and the accompanying thesis was submitted in April 2016. A PCB update was committed in 2023.
The archive demonstrates a complete prototype design process, including requirements, architecture, firmware, PCB design, fabrication outputs, operator-side experiments, and academic documentation.
- English documentation;
- repository policy and security configuration;
- GitHub Actions checks;
- primary-artifact integrity hashes;
- the dependency-free Python protocol inspector and its tests.
- proprietary project-format compatibility;
- the original Python 3.4 applications;
- embedded firmware builds;
- hardware sourcing or fabrication;
- vehicle calibration;
- live control, navigation, or mission operation.
- The serial protocol has a terminator but no reliable checksum or authentication.
- The original Python code contains broad exception handling, hard-coded Windows paths and ports, and legacy dependencies.
- Firmware was generated partly by an old Processor Expert toolchain.
- Binary project formats may migrate irreversibly in current vendor software.
- Current electrical rules, component lifecycles, and fabrication tolerances have not been revalidated.
The current branch omits generated IDE workspace state, Altium edit history, previews, project logs, runtime logs, bytecode, and autosaves. Those files were not authoritative source or release artifacts and remain available in earlier Git commits.