Software Design

Smart Microwave Oven Controller State Logic

State Diagrams · made in Skemio

State machine diagram showing Idle, Door Open, Cooking, Paused, Finished, and Safety Alarm states for a microwave controller.
State machine diagram showing Idle, Door Open, Cooking, Paused, Finished, and Safety Alarm states for a microwave controller.
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What it shows

  • Door interlock switches physically decouple high-voltage power paths
  • Opening the door while cooking pauses timers without wiping user settings
  • Thermal runaway or sensor failures trip an emergency alarm latch

The takeaway

Firmware and hardware interlocks must coordinate so dangerous radiation states can never activate.

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