Design and Construction of an Alcohol Detection Device Using an MQ-3 Sensor and a MAX30100 Heart Rate Sensor with an ESP32 IoT Driver
Rancang Bangun Alat Deteksi Alkohol Menggunakan Sensor MQ-3 Dan Sensor Detak Jantung MAX30100 Pengemudi Terintegrasi IOT ESP32
DOI:
https://doi.org/10.21070/ups.10825Keywords:
Internet of Things, ESP32, MQ-3, MAX30100, Heart Rate, Alcohol DetectionAbstract
This study aims to design and implement an alcohol and heart rate detection system for drivers based on the Internet of Things (IoT) using the ESP32 microcontroller. The system utilizes an MQ-3 sensor to detect alcohol levels and a MAX30100 sensor to measure heart rate. The collected data are displayed on an LCD and transmitted to the Blynk application for real-time monitoring. The test results show that the MQ-3 sensor is capable of detecting alcohol levels effectively based on changes in analog values, while the MAX30100 sensor provides relatively accurate heart rate measurements with an average error ranging from 2% to 4%. The IoT system is able to transmit data in real-time with a delay of approximately 1–3 seconds. Therefore, the developed system can be used as a real-time monitoring tool to assess the driver's condition and potentially improve driving safety.
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