This project is a real-time library vacancy monitoring system designed to track the number of people entering and leaving a library. The system uses an 8051 microcontroller, IR sensors, and 7-segment ...
Ultra-low power consumption: ~14μA in sleep, ~83mA during refresh (~15s). Long battery life: 6-12 months on a 5000mAh battery with 30-minute update frequency. Customizable display: Supports multiple ...
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