Optional: Calculate and Display dB/dt (Rate of Change)

[w2naf]

Overview

Calculate and display the rate of change of magnetic field (dB/dt).

Requirements

• FR-DP-05: The system MAY calculate and display dB/dt (rate of change) for space weather monitoring

Background

dB/dt is important for space weather monitoring as rapid changes can indicate geomagnetic disturbances that affect power grids and other infrastructure.

Tasks

• Implement dB/dt calculation (difference between consecutive readings)
• Add display option for dB/dt
• Consider units (nT/s or nT/min)
• Add to history table if displayed

Acceptance Criteria

• dB/dt calculated correctly
• Displayed with appropriate units
• Optional feature can be toggled

Priority

This is a MAY requirement - implement only if time permits after all must-have and should-have features are complete.