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All Journal Jurnal Teknik Mesin, Industri, Elektro dan Informatika Jurnal Cermatika
Riski Handayani
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Computer Science & IT Electrical & Electronics Engineering Industrial & Manufacturing Engineering Mathematics

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Rancang Bangun Pintu Otomatis Berbasis Sensor Pir (Passive Infra Red) Pada Kantor Fakultas Teknik Unpab Riski Handayani
Jurnal Teknik Mesin, Industri, Elektro dan Informatika Vol. 1 No. 2 (2022): Juni : JURNAL TEKNIK MESIN, INDUSTRI, ELEKTRO DAN INFORMATIKA
Publisher : Pusat Riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1092.636 KB) | DOI: 10.55606/jtmei.v1i2.475

Abstract

Pintu Geser Otomatis ditemukan hampir di tiap bangunan yang banyak dilalui oleh orang. Pintu Geser Otomatis dianggap menambah efisiensi waktu tiap orang yang melaluinya. Pintu Geser Otomatis memiliki komponen utama berupa sensor pergerakkan manusia dan motor penggerak mekanik pintu. Pintu Geser Otomatis dalam aplikasi ini menggunakan sensor pergerakkan manusia yang mendeteksi pergerakkan berdasarkan pancaran radiasi infra merah, dan motor DC sebagai penggerak mekanik pintunya. Sensor PIR (Passive Infra-Red), yaitu sensor yang dapat mendeteksi pergerakan manusia berdasarkan pantulan cahaya yang melintas di sekitarnya. Modul ini sangat baik digunakan untuk aplikasi-aplikasi yang memerlukan sensor yang dapat mendeteksi adanya gerakan manusia. Modul inilah yang menjadi sensor utama yang digunakan dalam Aplikasi ini. Untuk CPU (Central Processing Unit) –nya digunakan DI-Smart AVR System yang adalah sistem mikrokontroler yang berbasis ATmega8535(L).
ANALISIS KESULITAN BELAJAR SISWA DALAM MEMAHAMI KONSEP BANGUN DATAR DI KELAS V SD NEGERI 100612 SORIK TAHUN AJARAN 2021-2022 Yuni Rhamayanti; Riski Handayani; Ramadhan Saleh
JURNAL CERMATIKA Vol. 2 No. 1 (2022): Jurnal Cermatika Vol 2 No 1 April 2022
Publisher : Program Studi Matematika Universitas Graha Nusantara Padangsidimpuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.64168/cermatika.v2i1.1034

Abstract

In this study, the problem raised is the difficulty of students in learning mathematics, generally resulting from several problems that arise in the learning process, there are still many students who have difficulty understanding the concept of flat shapes even though in previous classes they have studied the material but the data obtained show there are still many students who have learning difficulties below the average. This study aims to find out where students have difficulty learning the Bangun Datar material, what factors influence students' mathematics learning difficulties in the Bangun Datar material and what are the teacher's efforts in overcoming students' mathematics learning difficulties at SD Negeri 100612 Sorik. This research is a qualitative research that uses descriptive methods to collect data by using tests and interviews. which was held at SD Negeri 100612 Sorik, from February 30 to March 25, 2022. The data sources in this study were students and mathematics teachers for grade 5 at SD Negeri 100612 Sorik.
Co-Authors Ramadhan Saleh Yuni Rhamayanti