PENGGUNAAN SENSOR ADXL335 UNTUK PEMBACAAN G-FORCE BEDASARKAN JENIS GEMPA DAN SEBAGAI PERINGATAN DINI

Pandu Sapta

doi:10.23960/jitet.v14i2.9209

Pandu Sapta
Politeknik Negeri Malang

DOI: https://doi.org/10.23960/jitet.v14i2.9209

Keywords ADXL335, ESP32, earthquake, accelerometer, Internet of Things (IoT).

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Abstract

_{This research discusses the design and testing of an earthquake early detection system using an ADXL335 accelerometer sensor integrated with an ESP32 microcontroller. This system aims to detect seismic waves in real-time and provide early warnings to the public through a digital interface. The ADXL335 sensor is used to read vibration acceleration on three axes (X, Y, Z), then the data is processed by the ESP32 to determine the earthquake magnitude level. Sensor calibration is carried out by comparing the measurement results with the accelerometer on a smartphone, resulting in an accuracy level above 99% on each axis. System testing was carried out using a DC motor-based artificial earthquake module that produces vibrations at various intensity levels. The results show that the system is able to detect vibrations with a low error rate (average MAE 0.028 0.062 g) and a stable response. With IoT integration, this system has the potential to be used as a prototype for earthquake early detection for educational purposes, disaster mitigation research, and local monitoring.}

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