Developed a dual-controller high-altitude telemetry stack that logs GPS, pressure, temperature, humidity, and CO2 up to ~100k ft, with automated pressure-triggered cutdown for flight safety.
Project Overview
Two Arduino boards run redundant sensing and control loops for resilience in low-temperature, low-pressure conditions. Telemetry is sampled and timestamped in real time, while cutdown logic monitors rolling pressure trends and threshold conditions to trigger controlled descent.
Key Features
- Redundant Flight Electronics: Dual-board architecture for fault tolerance during ascent.
- Multi-Sensor Telemetry: Continuous GPS + atmospheric sensing with synchronized logs.
- Safety Automation: Pressure-based cutdown relay with rolling-window decision logic.
- Post-Flight Analytics: Python tooling for trajectory reconstruction and atmospheric profiling.
Technical Details
Firmware emphasizes deterministic sampling, sensor health checks, and fail-safe state transitions before actuator fire. After payload recovery, analysis scripts align time series data, derive altitude from pressure curves, and produce mission diagnostics for subsequent hardware iterations.