ESP32 Smart Door Control System is now live!
Just submitted this comprehensive IoT access control project to the hackathon. Here's what makes it special:
SECURITY FEATURES:
- 4-digit PIN authentication via matrix keypad
- Automated servo lock mechanism
- Buzzer alerts for access events
SMART AUTOMATION:
- HC-SR04 ultrasonic sensor detects obstacles within 20cm
- Automatic lighting control via relay module
- Real-time distance measurements with temperature compensation
ENVIRONMENTAL MONITORING:
- DHT22 sensor tracks temperature and humidity
- Configurable alert thresholds (default: 85°C / 85% RH)
- Live data display on 20x4 I2C LCD
WEB INTERFACE:
- WiFi-enabled remote control
- Real-time sensor data updates (no page refresh needed)
- Responsive design works on mobile and desktop
TECHNICAL HIGHLIGHTS:
- Dual-core ESP32 running at 240MHz
- FreeRTOS multi-threading
- AsyncWebServer for non-blocking operation
- Median filtering for noise rejection
- Proper voltage level translation (5V to 3.3V)
Current Status: Fully functional prototype Code: 800+ lines of optimized C++ Power consumption: Under 400mA total
Try the web interface demo: https://spontaneous-scone-643e85.netlify.app
Would love to hear your feedback! What features would you add? Drop your thoughts in the comments below!
Hashtags: ESP32 IoT SmartHome EmbeddedSystems Arduino HomeAutomation
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