Rancang Bangun Tongkat Untuk Penyandang Tuna Netra Menggunakan Sensor Ultrasonik, HMC5883L, Dan Sistem Internet of Things (IoT)

Abstract

Visually impaired individuals face mobility and safety challenges in their daily activities due to their limited sense of sight. To address this issue, a smart cane prototype based on the Internet of Things (IoT) has been designed to enhance user independence and safety. This research focuses on the design and implementation of a navigation aid that integrates three ultrasonic sensors to detect obstacles in the front, left, and right; an HMC5883L sensor as a digital compass for directional guidance; and a GPS Ublox Neo-6m module for location tracking. The entire system is controlled by an ESP-32 DEV MODULE microcontroller, with voice notifications delivered via a DFPlayer Mini and a speaker, and location data transmitted in real-time to a Telegram Bot as a monitoring feature. Comprehensive testing was conducted, including functional tests of each hardware component and system tests in various trajectory scenarios (both outdoor and indoor), including on staircases. The test results indicate that the system operates with high reliability. The ultrasonic sensors have an average error rate of under 1.6%, the HMC5883L compass demonstrates high accuracy with a maximum deviation of 1°, and the GPS module is capable of transmitting location data with an average delay of 1.3 seconds. The device successfully detected various types of obstacles, such as wood, metal, mirrors, and people, in different environmental conditions, including ascending and descending stairs. Therefore, this smart cane prototype successfully fulfills its purpose as a functional, accurate, and responsive navigation aid to improve the mobility and safety of visually impaired individuals.

References

E. Șipoș, C. Ciuciu, and L. Ivanciu, “Sensor-Based Prototype of a Smart Assistant for Visually Impaired People—Preliminary Results,” Sensors, vol. 22, no. 11, p. 4271, 2022. DOI: 10.3390/s22114271.

J.-H. Kim, J.-E. Park, and J.-M. Lee, “3-D Space Visualization System Using Ultrasonic Sensors as an Assistive Device for the Blind,” IEEE Journal of Translational Engineering in Health and Medicine, vol. 8, 2020. DOI: 10.1109/JTEHM.2020.2978842.

C.-E. Panazan and E.-H. Dulf, “Intelligent Cane for Assisting the Visually Impaired,” Technologies, vol. 12, no. 6, p. 75, 2024. DOI: 10.3390/technologies12060075.

C. Mai, H. Chen, L. Zeng, et al., “A Smart Cane Based on 2D LiDAR and RGB-D Camera Sensor—Realizing Navigation and Obstacle Recognition,” Sensors, vol. 24, no. 3, p. 870, 2024. DOI: 10.3390/s24030870.

C.-E. Panazan and E.-H. Dulf, “Intelligent Cane for Assisting the Visually Impaired,” Technologies, vol. 12, no. 6, p. 75, 2024. DOI: 10.3390/technologies12060075.

C. Mai, H. Chen, L. Zeng, Z. Li, G. Liu, Z. Qiao, Y. Qu, L. Li, and L. Li, “A Smart Cane Based on 2D LiDAR and RGB-D Camera Sensor—Realizing Navigation and Obstacle Recognition,” Sensors, vol. 24, no. 3, p. 870, 2024. DOI: 10.3390/s24030870.

R. Puspitasari, A. Diamah, and B. Maruddani, “Design of a Smart Stick Based on the Internet of Things (IoT) for the Blind,” Jurnal Pendidikan Vokasional Teknik Elektronika (JVoTE), vol. 7, no. 2, 2024. DOI: 10.21009/jvote.v7i2.54684.

A. F. Arifin, E. Budihartono, and A. Basit, “Implementasi GPS tracking pada tongkat tunanetra,” 2019.

R. Soekarta, D. Yapari, and M. I. Zulkaedi, “Rancang bangun alat bantu tuna netra menggunakan tongkat dengan sensor ultrasonik,” INSECT (Informatics and Security): Jurnal Teknik Informatika, vol. 7, no. 1, pp. 1–9, 2021, doi: 10.33506/insect.v7i1.1688.

H. R. Rosyadi, “Rancang bangun tongkat tunanetra menggunakan sensor ultrasonik dengan GPS berbasis mikrokontroller,” Diploma thesis, Universitas Islam Kalimantan MAB, 2021.

S. Fuady, Nehru, and G. Anggraeni, “Deteksi objek menggunakan metode Single Shot Multibox Detector pada alat bantu tongkat tunanetra berbasis kamera,” Journal of Electrical Power Control and Automation (JEPCA), vol. 3, no. 2, pp. 39–43, 2020, doi: 10.33087/jepca.v3i2.38.

I. Salamah, Lindawati, and E. A. Munandar, “Rancang bangun alat bantu tunanetra berbasis mikrokontroler ATmega2560,” Jurnal Syntax Admiration, vol. 1, no. 4, pp. 363–373, 2020, doi: 10.46799/jsa.v1i4.72

A.Zubaidah. (2019). Rancang Bangun Sepatu Tunanetra dengan Sensor Ultrasonik, Sensor Warna, dan Modul GSM/GPRS/GPS A7 AI Thinker Berbasis Arduino. Journal of Chemical Information and Modeling, 53(9), 1689–1699.

Ahmad Angga Putra Pradana. (2023). Implementasi Global Positioning System Pada Perkiraan Jarak Dan Waktu Kedatangan. Jurnal Ilmiah Sistem Informasi, 2(1), 47–58. https://doi.org/10.51903/juisi.v2i1.532.

Imran, A., & Rasul, M. (2020). Pengembangan Tempat Sampah Pintar Menggunakan Esp32. Jurnal Media Elektrik, 17(2), 2721–9100. https://ojs.unm.ac.id/mediaelektrik/article/view/14193.

Fitriyah, Q., Batam, P. N., Nugroho, B. Y., Komunitas, A., & Pacitan, N. (2020). Pengujian Sensor Hmc5883L Untuk Purwarupa Robot Beroda. Prosiding Seminar Nasional NCIET, 1(1). https://doi.org/10.32497/nciet.v1i1.153.

Fatoni, M., & Adiananda. (2021). Rancang Bangun Prototipe Pengaman Kendaraan Berbasis Gps Komunikasi Pesan Telegram Dan Thingspeak. ELECTRON : Jurnal Ilmiah Teknik Elektro, 2(2), 01–12. https://doi.org/10.33019/electron.v2i2.1.

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Vol. 8 No. 2 (2026): Jurnal Teknik Elektro dan Komputasi (ELKOM)

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