The Smart Helmet Safety System is designed to improve rider safety by detecting alcohol consumption and drowsiness in real time.
It uses an MQ-series alcohol sensor and an MPU6050 accelerometer + gyroscope to monitor the riderβs condition.
If unsafe riding behavior is detected, the system triggers both visual and audible alerts, helping prevent accidents.
- πΊ Alcohol Detection: Monitors breath alcohol levels; triggers Red LED & buzzer if unsafe.
- π΄ Drowsiness Detection: Tracks helmet tilt angle using MPU6050; prolonged unsafe tilt triggers Yellow LED & buzzer.
- π Real-time Monitoring: Alcohol, tilt, accelerometer, gyroscope, and temperature data via Serial Monitor.
β οΈ Dual Alerts: Visual (LED indicators) and audible (buzzer) for quick rider awareness.
- Arduino Uno / Nano or compatible board
- MQ-series Alcohol/Gas Sensor
- MPU6050 Accelerometer + Gyroscope
- Red & Yellow LEDs + 220Ξ© resistors
- Buzzer
- Jumper wires, breadboard or helmet mounting setup
Connections:
- MQ Sensor OUT β A0
- MPU6050 SDA β A4, SCL β A5
- Red LED β D3, Yellow LED β D4
- Buzzer β D5
- Common GND for all components
- Alcohol Monitoring: Continuously measures breath alcohol concentration. Above threshold β Red LED + buzzer alert.
- Tilt/Drowsiness Monitoring: Calculates helmet tilt angle. If tilt exceeds safe range for >3s β Yellow LED + buzzer alert.
- Alerts: Rider receives immediate visual & audible warnings.
- Motorcycle rider safety enhancement
- Long-distance travel fatigue prevention
- Accident prevention systems
