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All Journal Jurnal Pendidikan Fisika Indonesia Jurnal Studi dan Aplikasi Teknik Sipil (JSATS)
Wa Ode Nirwana Sari Halidun
Universitas Halu Oleo
Civil Engineering, Building, Construction & Architecture Education Engineering Environmental Science Industrial & Manufacturing Engineering Transportation

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Perancangan Sistem Kendali Kualitas Udara Toilet Sekolah Berbasis ESP32 Menggunakan Sensor MQ-2, MQ-135, dan Kontrol PID Dian Atmasani; Wa Ode Nirwana Sari Halidun; Khairul Anshari; Irfin Sandra Asti
Jurnal Studi dan Aplikasi Teknik Sipil (JSATS) Vol. 2 No. 2 (2026): Agustus
Publisher : Marasofi International Media and Publishing (MIMP)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.64123/jsats.v2.i2.1

Abstract

Penurunan kualitas udara pada toilet sekolah akibat asap rokok dan akumulasi gas amonia dapat mengganggu kesehatan serta kenyamanan pengguna. Sistem ventilasi konvensional berbasis kendali manual atau on-off memiliki keterbatasan dalam merespons perubahan konsentrasi polutan secara efektif. Penelitian ini bertujuan merancang dan mengimplementasikan sistem kendali kualitas udara toilet sekolah berbasis Internet of Things (IoT) menggunakan algoritma Proportional-Integral-Derivative (PID). Sistem dikembangkan menggunakan ESP32 yang terintegrasi dengan sensor MQ-2 untuk deteksi asap rokok, sensor MQ-135 untuk deteksi gas amonia, sensor PIR untuk deteksi keberadaan pengguna, serta exhaust fan yang dikendalikan melalui MOSFET IRLZ44N. Data kualitas udara dipantau secara real-time melalui platform Blynk. Hasil pengujian menunjukkan bahwa saat konsentrasi asap mencapai 1.471–1.509 ppm, sistem menghasilkan keluaran PWM sebesar 254 sehingga exhaust fan bekerja pada kapasitas maksimum. Pada fase pembersihan udara, nilai PWM menurun secara bertahap dari 227 menjadi 198 seiring penurunan konsentrasi polutan dari 938 ppm menjadi 853 ppm. Hasil tersebut menunjukkan bahwa algoritma PID mampu menghasilkan respons yang stabil, proporsional, dan lebih halus dibandingkan kendali on-off konvensional. Sistem juga berhasil mengaktifkan alarm secara otomatis pada kondisi polutan tinggi. Dengan demikian, sistem yang dikembangkan efektif dalam mengendalikan kualitas udara dan mendukung pemantauan lingkungan secara real-time.
Development of Case Method-Based Learning Tools to Enhance Learning Outcomes in Engineering Physics Course Erniwati Erniwati; Wa Ode Nirwana Sari Halidun; Kasman Kasman; Abdin Abdin; Muhammad Sirih
Jurnal Pendidikan Fisika Indonesia Vol. 22 No. 1 (2026)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jpfi.v22i1.6341

Abstract

This study aims to develop a learning tool using the case method in an engineering physics course. The 4D (define, design, develop, disseminate) development model is used as the methodology. The development model is used to determine the feasibility and effectiveness of learning tools in improving the learning outcome. The validation sheet, questionnaire, and written test sheet were used as the data collection techniques. The validation sheet consists of construction and content validation. The questionnaire is used to collect descriptive data on the practical teaching materials test, and the written test sheet consists of a pretest and a post-test, which are used to determine learning outcomes improvement. The validation test results showed that the case-based learning tools in the engineering physics course were categorized as very valid. The practicality of case-based learning tools is evaluated through an analysis of lecturer and student responses. The results showed that the practical case-based learning tools were rated as very practical. Effectiveness can be determined from the N-gain score from the pretest and posttest. The result showed that the N-gain score was in the medium range, indicating improvement in the learning outcome. According to the results above, the development of learning tools using the case method has been declared feasible and effective for application in the engineering physics course.
Co-Authors Abdin Dian Atmasani Irfin Sandra Asti Kasman Kasman Khairul Anshari Muhammad Sirih