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All Journal Jurnal Teknologi Pendidikan Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Mantik Penusa Jurnal Teknik Informatika UNIKA Santo Thomas JIPN (Journal of Informatics Pelita Nusantara) Jurnal Mantik Kumawula: Jurnal Pengabdian Kepada Masyarakat INFOKUM Jurnal Scientia MEANS (Media Informasi Analisa dan Sistem) Journal of Computer Networks, Architecture and High Performance Computing Jurnal Pengabdian kepada Masyarakat Nusantara Journal Zetroem Instal : Jurnal Komputer Jurnal Teknik Informatika Unika Santo Thomas (JTIUST) JURNAL TEKNOLOGI INFORMASI & KOMUNIKASI DALAM PENDIDIKAN
Hutahaean, Harvei Desmon
Universitas Negeri Medan
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Physics Social Sciences

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Journal : Jurnal Mantik

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Multiplexer Performance Testing For IoT-Based Air Quality Monitoring System: Multiplexer Performance Testing For IoT-Based Air Quality Monitoring System Bakti Dwi Waluyo; Harvei Desmon Hutahaean; Agus Junaidi
Jurnal Mantik Vol. 4 No. 1 (2020): May: Manajemen, Teknologi Informatika dan Komunikasi (Mantik)
Publisher : Institute of Computer Science (IOCS)

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Abstract

Technology-based on the Internet of Things (IoT) which is integrated with the NodeMCU ESP8266 device has produced intelligent equipment.The smart equipment is even able to display data in real-time through computer devices and smartphones while connected to the internet.However, NodeMCU ESP8266 has limitations on analog input channels, so sensors with analog output cannot be connected more than one.therefore, the multiplexer in the form of IC 4051 is used to add analog channels in NodeMCU ESP8266.IC 4051 has eight analog channels which are controlled by selector pins. Sensors connected to IC 4051 are temperature (LM35), humidity (HIH-4030), gas (MQ-2 and MQ-135).NodeMCU ESP8266 receives values ??from sensor readings and sends to the Firebase database via internet connection.The firebase database can be monitored via a smartphone by making its application on the MIT App Inventor.This experiment has succeeded in acquiring data from the four sensors using a multiplexer, then the data can be viewed via a smartphone.
WEB-BASED SCREEN PRINTING PRODUCT DESIGN ORDERING SERVICES Harvei Desmon Hutahaean; Wahyu Simangunsong; Veronica Elisabeth Simatupang; Rebecca Lyana Elisabeth; Rianni Yuni Sinaga; Sintia Natalia Br Sinulingga
Jurnal Mantik Vol. 5 No. 3 (2021): November: Manajemen, Teknologi Informatika dan Komunikasi (Mantik)
Publisher : Institute of Computer Science (IOCS)

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Abstract

Website-based design and screen printing services business as a booking medium is a very promising business, this is due to the rapid development of the fashion world, especially those that are sweeping young people in the modern era now causing the need for increased availability of fashion. This can be seen with the rise of shopping centers that sell and advertise various fashion styles. Also do not miss the shops along the way that display displays of varied fashion styles. The new technology in the world of screen printing in the form of digital printing makes it easier and beautify the results of screen printing. Digital printing screen printing results look smoother and neater than conventional screen printing results. This business is classified as a business that can only be handled by professional people so it is rarely a mock-up of an art business like this. This makes business competitors still very few while the business opportunity is very large. Seeing the opportunity and seeing the potential that has made researchers initiate and pursue this business further.
Co-Authors Agus Junaidi Ali Akbar Lubis Anastasya Aritonang Rajagukguk Ani Sutiani Bakti Dwi Waluyo Bosker Sinaga Charles Fransiscus Ambarita Dani Solihin, Muhammad Denny Haryanto Sinaga Eddiyanto Eddiyanto Erita Astrid Freddy Tua Musa Panggabean Hamzah, Afif Harahap, Vivi Ramayanti Hasugian , Paska Marto Hengki Tamando Sihotang Hesti Fibriasari Jamalum Purba Janner Simarmata Jongga Manullang Juan Samuel Simanjuntak Juniar Hutahaean Lahagu, Amin Setiawan Laksanama Nur Ramadhan Lia Maharani Lubis Lisa Melvi Ginting Lubis, Azmi Rizki Lubis, Lia Maharani Marsangkap Silitonga Marsangkap Silitonga Maulana, Bagoes Mega Silfia Dewy, Mega Silfia Mendoza, Mhd. Dominique Mendoza, Muhammad Dominique Mufti Sudibyo, Mufti Muhammad Aulia Rahman Sembiring Muhammad Dani Solihin Muhammad Isnaini Muhammad Isnaini Muhammad Isnaini Muhammad Sulaiman Mutiara Agustina Nst Puji Prastowo, Puji Purba, Julio Aldrin R. Mahdalena Simanjorang Rahman Sembiring, Muhammad Aulia Rais, Muhammad Amin Rebecca Lyana Elisabeth Reni Rahmadani Rianni Yuni Sinaga Riz Rifai Oktavianus Sasue Rosma Siregar S, Muhammad Aulia Rahman Sari, Ressy Dwitias Sihite, Onggal Sihombing, Gracia Napare Silitonga, Marsangkap Sintia Natalia Br Sinulingga Syahputra, Ricky Andi Syarifuddin Syarifuddin Tonggo Sinaga, Tonggo Veronica Elisabeth Simatupang Wahyu Simangunsong Zuhairiah Nasution, Zuhairiah