Smart meter and radar: what they have in common

1. Step 1. Smart meter — has part — Microcontroller. A microcontroller does the metering.
2. Step 2. Microcontroller — is part of — Parking sensor. A microcontroller calculates the distance.
3. Step 3. Parking sensor — works like — Radar. A parking sensor, like radar, catches a reflected signal — only ultrasonic.

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