Meluasnya pandemi Covid-19 memaksa proses pembelajaran di sekolah dilakukan secara daring. Hal ini menuntut guru untuk lebih kreatif dalam menggunakan media pembelajaran yang berbasis teknologi agar pembejaran lebih interaktif terutama pada kondisi pandemi. Akan tetapi tidak banyak guru di sekolah yang menguasi perangkat lunak sebagai media pembejaran, sehingga perlu dilakukan pelatihan dalam pemanfaatan teknologi dalam Pembelajaran Jarak Jauh. Metode yang dilakukan antara lain perancangan dan persiapan yang meliputi survei terhadap kondisi guru dalam memanfaatkan media pembelajaran, pelaksanaan kegiatan, dan evaluasi. Hasil survei awal menunjukkan bahwa guru IPA masih sangat terbatas dalam memanfaatkan metode pembelajaran dengan perangkat lunak interaktif, sehingga dilakukan pelatihan dengan modul yang sudah disediakan dan perangkat lunak yang dapat mewakili pembelajaran IPA berbasis STEM dengan penggunaan Nearpod dan Laboratorium virtual simulasi PhET. Hasil Pelatihan menunjukkan adanya peningkatan pemahaman dan kreatifitas guru IPA dalam proses pembelajaran daring
A Solar tracker is a device that is powered by solar panels motors, aiming to adjust the position of the panel with the movement of the sun so that energy can be absorbed optimally. This study will compare the use of solar panels and solar trackers fix the model, so on getting the efficiency of each system. The test site is on the campus of the Institute of Technology of Sumatra. Prototype solar tracker is controlled using a microcontroller Arduino, ethernet shield as a liaison Arduino with local networks that can be connected to the web, the stepper motor is used as a driver, is equipped with a voltage sensor, current sensor, the sensor LDR (Light Dependent Resistor) for parameter tracking the sun, solar charge controller as control the charging and battery as energy storage. Parameter solar energy tracker and fix displayed realtime models consist of the reading of voltage, current, and power in the form of a graph on a web monitoring. Calculation of energy that can be generated a model of solar tracker is the difference between the energy stored in the battery is reduced by the energy to activate the motor driver, so we get solar tracker models to use efficiency as compared to fixed models.
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