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Tita Aisyah
Institut Teknologi Indonesia
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Prototipe Kelas Pintar dengan Absensi Otomatis MAC Address Gawai Berbasis IoT Adi Setiawan; Gyga Putra Parsaulian Hutauruk; Tita Aisyah
INSOLOGI: Jurnal Sains dan Teknologi Vol. 2 No. 1 (2023): Februari 2023
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/insologi.v2i1.1400

Abstract

This IoT-based smart classroom prototype was built using the NodeMCU microcontroller ESP8266. The automation system works by checking if there are users connected to the access point in the classroom and the course scheduled to use it. The attendance check is done by fetching MAC address from a user's device automatically. Next, it will activate relay to turn on electrical facilities in the used classroom, such as lamps, fans, or air conditioners. The system also uses the website using MySQL database to monitor classroom conditions, edit class schedules, register user devices to the system and access attendance data. From the tests carried out, the system can run according to design. Among other things, the relay circuit can be arranged according to the schedule of activities and the whereabouts of the user. Attendance data can be displayed according to users who are connected and registered in the system. The calculations on total delay of system yield results that the delay to activate the classroom is 10.66 ± 0.87 seconds on the website and 14.55 ± 0.78 seconds on the relay. On the other hand, the delay needed to deactivate the classroom is 39.34 ± 3.69 seconds on the website and 36.26 ± 3.70 seconds on the relay.
Perancangan Inkubator Bakteri Berbasis WEB Sebagai Inovasi Penunjang Laboratorium Mikrobiologi Tita Aisyah; Rendi Dwiyanto
Jurnal Pendidikan dan Konseling (JPDK) Vol. 5 No. 2 (2023): Jurnal Pendidikan dan Konseling
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jpdk.v5i2.14394

Abstract

Bakteri merupakan organisme yang paling melimpah di Bumi dan dapat dimanfaatkan dalam berbagai bidang seperti pangan, penelitian, pengobatan, dan industri. Untuk memanfaatkannya, dibutuhkan alat inkubator bakteri yang dapat menginkubasi bakteri dalam laboratorium mikrobiologi. Namun, alat ini membutuhkan komponen yang mahal dan konsumsi daya listrik yang tinggi (744 Watt), sehingga dirancanglah inkubator bakteri yang ekonomis dan konsumsi daya rendah dengan sistem pemantauan suhu berbasis web server ubidots. Inkubator ini terdiri dari dua unit yang dikendalikan oleh mikrokontroler Arduino Mega dan sensor suhu DS18B20 untuk menjaga suhu stabil pada 37°C. Data suhu dikirim ke web server ubidots melalui ESP8266 untuk memonitor suhu selama proses inkubasi. Dengan akurasi pembacaan sensor suhu rata-rata |%Error| 0,06% dan daya maksimum hanya 26,11 Watt, maka inkubator bakteri ini dapat bekerja dengan baik dan efisien.
Co-Authors Adi Setiawan Gyga Putra Parsaulian Hutauruk Rendi Dwiyanto