Скачать или смотреть Smart Multi-Door Interlock PLC System | Automatic Door Control with Safety Feedback & Buzzer Alerts

A compact and intelligent multi-door interlock controller designed for automation and safety applications.
This system manages multiple doors with precise timing, feedback monitoring, and user alerts — ideal for clean rooms, labs, and industrial access zones.

🔹 Key Features:
• 5-level buzzer system with unique alert tones
• Adjustable door hold and auto-reset time (0–900 sec)
• Feedback and tamper detection for door safety
• Pre-close warning buzzer before automatic door locking
• Works on 12V DC with onboard 5V regulated logic
• Scalable design – multiple boards can be interconnected

🔹 Applications:
✔ Clean Room Door Interlocks
✔ Laboratory & Industrial Access Control
✔ Security Interlock Systems
✔ Multi-Door Entry Automation

This project demonstrates a simple yet powerful PLC-based approach to safe, reliable door control with full feedback monitoring and smart alert tones.

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