Road safety remains a major concern for two-wheeler riders, particularly during group rides and long-distance travel. Unlike four-wheelers, which increasingly adopt Vehicle-to-Vehicle (V2V) communication systems, motorcycles lack affordable and practical real-time communication solutions. This project presents Smart Rider Assist, a low-cost, long-range bike-to-bike wireless alert system designed using the ESP32 microcontroller and LoRa RF modules. The system enables riders to exchange critical alerts such as low fuel, hazard warning, accident-prone zone notification, and vehicle breakdown information within a range of 3–5 km without requiring internet connectivity or SIM cards. A 1×4 keypad is used for input, and an OLED display shows the received alerts along with the sender’s vehicle number. Powered by a 12V lead-acid battery with a buck converter for voltage regulation, the system ensures stable and energy-efficient operation. The alert remains active until reset using a predefined key combination. The proposed system offers an economical, reliable, and scalable communication platform that enhances road safety, coordination, and emergency response among motorcyclists.
A et al. (Sun,) studied this question.