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All Journal SPEKTRAL : Journal of Communications, Antennas and Propagation SINGOSARI: Jurnal P3SI Wilayah Jawa Timur
Lestari, Annisa Fitri
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Arts Humanities Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Engineering Languange, Linguistic, Communication & Media Social Sciences Other

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Prototype Sistem Pendeteksi Longsor Berbasis Internet of Things Menggunakan Komunikasi Long Range (LoRa) Lestari, Annisa Fitri; Riani, Erna; Nurjihan, Shita Fitria; Hasani, Rifqi Fuadi
Spektral Vol. 5 No. 2 (2024): Oktober 2024
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/spektral.v5i2.7234

Abstract

Landslide disasters occur when materials such as rocks, debris, soil, or mixtures thereof move down a slope or out of the slope. As a natural disaster, landslides can cause material loss and loss of life. To reduce the impact, a system is needed that can monitor soil conditions continuously real-time and provide early warning to people living in landslide-prone areas. This designed system integrates a landslide-based detection tool Internet of Things (IoT) with Android applications. The system uses Realtime Database to store data from sensors, software Android Studio for developing Android applications, as well as communications Long Range (LoRa) to send sensor data to the microcontroller. This system can display data on soil moisture, rain intensity, vibration and conditions directly. If danger is detected, a buzzer will sound, and the application will send notifications quickly and precisely. Tests show that the sensor can transmit data using LoRa with an Received Signal Strength Indicator (RSSI) value of -71 dBm at 10 meters under conditions of Line of Sight, and up to 100 meters with an RSSI value of -106 dBm in the presence of obstructions. With this system, it is hoped that people in landslide-prone areas will be more alert, so that the risk of loss of life and material loss can be reduced.
History of Women in the Pre-Independence Era Lestari, Annisa Fitri
SINGOSARI: Jurnal Perkumpulan Prodi Pendidikan Sejarah Se-Indonesia (P3SI) Wilayah Jawa Timur Vol. 2 No. 1 (2025): SINGOSARI: Jurnal P3SI Wilayah Jawa Timur
Publisher : CV. Sekawan Siji

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63440/singosari.v2i1.58

Abstract

Women as citizens of society, have the full right to think about the problems of society, seek solutions to the problems faced and try to build the community in accordance with their desires and beliefs, The struggle of women in 1928 began with the Indonesian Women's Congress which was first held in Yogyakarta on December 22, 1928. This research method uses the document study method and with the results of Women's organizations in the pre- independence era starting with the pppi. And there were many female figures who fought for women's independence.
Co-Authors Erna Riani Hasani, Rifqi Fuadi Shita Fitria Nurjihan