Use of rain and humidity sensors for rider safety against harsh weather conditions

Abstract

This paper presents a comprehensive weather-sensing system for motorcyclists using DHT22 humidity sensors and piezoelectric rain detectors. The embedded system provides real-time alerts through haptic feedback on the handlebar and an LED visor display, warning riders about deteriorating weather conditions and reduced road traction to enhance overall riding safety.

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The weather-sensing module combines a DHT22 sensor for humidity measurement, a piezoelectric rain detector for precipitation intensity, and a BMP280 barometric pressure sensor for storm prediction. An ESP32 microcontroller processes sensor data and activates a vibration motor on the handlebar (haptic alert) and three colored LEDs on the helmet visor (green/yellow/red) to indicate weather severity levels.

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