A cutting-edge IoT-based lie detection system combining ESP32 microcontroller with advanced physiological sensors for real-time deception analysis.
Dual-core 240MHz processor with built-in WiFi for real-time processing and wireless connectivity
Medical-grade sensor measuring heart rate and SpO2 with infrared LED technology
Galvanic Skin Response sensor detecting stress-induced perspiration changes
Real-time data streaming at 2Hz with <100ms latency for instant feedback
GSR Only, Heart Rate Only, Combined Mode, and Diagnostics for versatile analysis
12-bit ADC resolution with noise reduction and adaptive baseline tracking
ESP32 connects to WiFi and initializes sensors. Mobile app establishes WebSocket connection for real-time data streaming.
System records 5-15 seconds of baseline physiological data (GSR and heart rate) to establish normal patterns for comparison.
During questioning, sensors continuously monitor physiological changes. Data is processed in real-time with noise reduction and filtering.
Multi-sensor fusion algorithm analyzes deviations from baseline, calculates confidence scores, and provides verdict: Truthful, Inconclusive, or Deception Likely.
⚠️ Educational Purpose Only: This system is designed for educational and experimental use. Not suitable for legal, forensic, or professional applications. Results may be influenced by stress, anxiety, health conditions, and environmental factors.