Ita Rusmala Dewi
Universitas Gunadarma

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Analisis Perancangan Sistem keamanan Mobil Jarak Jauh Menggunakan Telepon dan SMS (Short Message Service) Ita Rusmala Dewi; Ramadhani Ulansari
JURNAL TEKNOLOGI INFORMASI Vol 4, No 2 (2018): Jurnal Teknologi Informasi
Publisher : Universitas Respati Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52643/jti.v4i2.300

Abstract

ABSTRAK Keamanan Mobil Jarak Jauh Menggunakan Telepon Dan SMS (Short Message Service)  merupakan sebuah alat pengaman mobil menggunakan alarm yang memiliki jarak jangkauan yang jauh, serta menggunakan sistem keamanan bertingkat yang dapat melakukan fungsi-fungsi pengamanan pada mobil yang ditinggal pemiliknya di tempat parkir. Pada perancangan sistem ini menggunakan mikroswitch, mikrokontroler Arduino Uno R3, GSM / GPRS Shield, Telepon genggam, Relay, LED, dan Buzzer. Dimana pada saat pemilik mobil mengaktifkan sistem dengan mengirim kode melalui SMS (Short Message Service), maka sistem pengamanan akan aktif. Apabila terjadi tindakan pencurian dengan cara membuka pintu mobil, maka sistem akan mengaktifkan alarm yang dapat terdengar jarak dekat yaitu Buzzer, dan alarm jarak jauh melalui Telepon dan SMS (Short Message Service)  yang berisi pemberitahuan bahwa ada tindakan pencurian ke pemilik kendaraan, me-nonaktifkan starter dan pengapian secara bersamaan, serta pemilik mobil juga dapat me-nonaktifkan dan mengaktifkan kembali sistem tersebut melalui SMS (Short Message Service). Berdasarkan hasil pengujian dari 5 provider yang telah dilakukan, sistem ini dapat merespon upaya tindakan pencurian terhadap mobil dengan baik, serta waktu respon terhadap bunyi buzzer memiliki waktu respon tercepat 01.97 detik dan waktu respon terlama 05.03 detik, sedangkan waktu respon tercepat terhadap Telepon 04.67 detik dan SMS (Short Message Service) 07.66 detik dan waktu respon terlama terhadap Telepon 07.20 detik dan SMS 16.18 detik. Dengan demikian, maka pemilik mobil dapat mengetahui secepatnya apabila ada upaya tindakan pencurian terhadap mobil, meskipun berada jauh dari mobilnya. Kata Kunci : SMS (Short Message Service), Telepon, Arduino, GSM/GPRS Shield, Microswitch  ABSTRACT Remote Car Security Using Telephone and SMS (Short Message Service), is a car safety device using an alarm that has a long range, and uses a multilevel security system that can perform security functions on the car that the owner leaves in the parking lot. In designing this system uses microswitch, Arduino Uno R3 microcontroller, GSM / GPRS Shield, Mobile Phone, Relay, LED, and Buzzer. Where when the car owner activates the system by sending code via SMS (Short Message Service), the security system will be active. If there is an act of theft with someone opening the car door, then the system will activate an alarm that can be heard at close range (Buzzer), a remote alarm via Phone and SMS (Short Message Service) which contains a notification that there is theft to the owner, deactivate starter and ignition simultaneously, and car owners can also deactivate and reactivate the system via SMS (Short Message Service). Based on the results of the testing of the 5 providers that have been carried out, this system can respond to attempts to steal the car properly, and the response time to the buzzer sound has the fastest response time of 01.97 seconds and the longest response time of 05.03 seconds, while the fastest response time to Phone is 04.67 seconds and SMS (Short Message Service) 07.66 seconds and the longest response time to Phone 07.20 seconds and SMS (Short Message Service) 16.18 seconds. Thus, the car owner can find out as soon as possible if there is an attempt to steal the car, even if it is far from the car. Keywords: SMS (Short Message Service), Telephone, Arduino, GSM / GPRS Shield, Microswitch
OPTIMISASI TEKNOLOGI SENSOR PADA ALAT BANTU TUNANETRA BERBASIS ARDUINO UNO Febriyansyah Ramadhan; Ita Rusmala Dewi; Kresna Wibowo Dasa Nugraha
INFOTECH journal Vol. 11 No. 1 (2025)
Publisher : Universitas Majalengka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31949/infotech.v11i1.12962

Abstract

Sensor technology offers an innovative solution to enhance the effectiveness of navigation aids for the visually impaired. This study optimizes the performance of the HC-SR04 ultrasonic sensor and Water Level sensor in an Arduino Uno-based device through sensor calibration, refinement of data processing algorithms, and simulations under various environmental conditions. The test results show an improvement in obstacle detection accuracy of up to ±2 cm and a faster response time for the Water Level sensor with an optimal threshold of 750. Algorithm optimization successfully reduces response time by 15%, accelerating buzzer alerts. The system becomes more adaptive to environmental variations, such as narrow spaces and temperature changes. Further development may include adding light sensors or GPS to enhance functionality and user safety.
Prototipe Kendali Lampu dan Pintu Garasi Menggunakan NodeMCU ESP8266 dan Blynk Ita Rusmala Dewi; Febriyansyah Ramadhan; Naufal Febianto
Jutisi : Jurnal Ilmiah Teknik Informatika dan Sistem Informasi Vol 15, No 2 (2026): April 2026
Publisher : STMIK Banjarbaru

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35889/jutisi.v15i2.2884

Abstract

Garage system automation has become essential to enhance security and energy efficiency. This study aims to design and implement a prototype of a lighting and garage door control system based on the NodeMCU ESP8266 integrated with the Blynk application. The research method includes hardware design using ultrasonic and PIR sensors, as well as software development based on the Internet of Things. System testing was conducted using black-box testing to verify system functionality and delay testing to measure response time. The results show that the ultrasonic sensor can detect objects up to 20 cm, while the PIR sensor detects motion up to 53 cm, with a relatively fast and stable system response, achieving an average error rate of 3.54% for the ultrasonic sensor. The system is capable of activating lights, opening the garage door using a servo motor, and sending real-time notifications. Therefore, the developed system is proven effective in improving security and energy efficiency, as well as enabling remote control.Keywords: Automatic control; Internet of Things; NodeMCU ESP8266; PIR sensor; Ultrasonic sensorAbstrakOtomatisasi sistem garasi menjadi kebutuhan penting dalam meningkatkan aspek keamanan dan efisiensi energi. Penelitian ini bertujuan merancang dan mengimplementasikan prototipe sistem kendali lampu dan pintu garasi berbasis NodeMCU ESP8266 yang terintegrasi dengan aplikasi Blynk. Metode penelitian meliputi perancangan perangkat keras menggunakan sensor ultrasonik dan sensor PIR serta pengembangan perangkat lunak berbasis Internet of Things. Pengujian sistem dilakukan menggunakan metode black-box testing untuk memverifikasi fungsi sistem serta uji delay untuk mengukur waktu respons. Hasil pengujian menunjukkan sensor ultrasonik mampu mendeteksi objek hingga jarak 20 cm dan sensor PIR hingga 53 cm, dengan waktu respons sistem yang relatif cepat dan stabil, serta rata-rata error sebesar 3,54% pada sensor ultrasonik. Sistem mampu mengaktifkan lampu, membuka pintu garasi melalui motor servo, serta mengirim notifikasi secara real-time. Dengan demikian, sistem yang dikembangkan terbukti efektif dalam meningkatkan keamanan dan efisiensi energi serta mendukung kendali jarak jauh.