Kelemahan pengelolaan perkebunan sawit di Indonesia adalah kurangnya data yang memadai bagi pengelola dan pemilik perkebunan sawit untuk menganalisis dan mengevaluasi produktivitas lahannya. Apalagi pemilik perkebunan sawit yang tidak turun langsung mengelola perkebunan sawitnya, mengandalkan laporan secara lisan dari pelaksana di kebun. Adanya pendataan yang kontinyu menghasilkan kumpulan data yang banyak sehingga trend data dapat digunakan untuk analisis dan evaluasi. Berdasarkan latar belakang tersebut maka keberadaan sistem monitoring kondisi pohon sawit berbasis IoT menjadi penting untuk membantu mengumpulkan data secara mudah dan dapat diakses dari jarak jauh. Penelitian ini bertujuan untuk menghasilkan sistem berbasis IoT yang terdiri dari perangkat pengumpul data kondisi sawit dan data base. Sistem pengumpul data terdiri dari QR code scanner, mikrokontroller, modul ES8266 dan LCD touch screen. Parameter yang dimonitor antara lain jumlah tandan buah, jumlah tandan buah siap panen, kondisi daun dan batang, lokasi dan waktu penginputan data. Hasil pengujian terhadap sistem menunjukkan bahwa sistem pembacaan tag ID QR code telah berfungsi baik dengan memperhatikan jarak efektif pembacaan QR scanner terhadap QR code. Proses pengiriman data juga telah berfungsi baik dengan waktu rata-rata pengiriman data adalah 0.797 detik untuk 10 kali percobaan pengiriman data.
This study describes the design of an underwater robot-Remotely Underwater Vehicle (ROV) which is controlled using a computer. The robot is controlled remotely using a GUI application built using VB. The microcontroller used as the processor is Arduino Uno R3 with a web camera as an eye to determine the next robot movement. This robot uses three motors as the driving force, and Bilge Pumps as the driving motor. The robot skeleton is made of acrylic by adding a float so that the robot can float on water. All electronic devices are controlled using cables. The robot can maneuver up to a depth of 2.25m, with the robot's response to movement commands, which is 61.935ms – 232.752 ms
The Pineapple Community Group (PONARI) is one of those recommended by the Kampar Integrated Business Service Center (PLUT) to provide assistance. The Covid-19 pandemic condition affected PONARI's business, where Pokmas experienced a drastic decrease in income. The occurrence of the pandemic caused many government agency activities or events, wedding parties, which usually place orders for pineapple processed products, to not be carried out. Marketing efforts to other places such as entrusting them to gift shops are very limited because the processed products do not yet have a PIRT permit, even though the demand from gift shops is actually quite a lot. Thus, there is a need for assistance for PONARI so that they can rise from adversity due to the pandemic. The form of assistance for PONARI carried out in this community service program is the application of production machines, improvement of packaging labels, promotional materials and media. The results of community service activities are in the form of two production machines that have been implemented and have a positive impact on the production process. Other results are in the form of more modern and attractive packaging labels, promotional materials with attractive taglines and promotional media to support digital marketing.
This study aims to develop and improve the capabilities of the Bellyra music player robot version 1.0. The development is carried out on several features including interface between user and robot was replaced using a TFT touchscreen which is proved more practical and the process of updating the library of songs is done by utilizing the service features of Google Sheets so that it becomes more flexible. The ability of the robot in terms of playing the melody of the song is improved by using alphabetical and symbolic codes that represent the melody and tempo of the song. The results showed that the Bellyra robot version 2.0 had been able to play the melody of the song properly for slow and medium rhythm nevertheless for faster melody could not be played properly due to the limited response of servo motor and unstable mechanical design.
Generator fungsi atau Function generator adalah alat yang menghasilkan sinyal listrik dengan amplitudo dan frekuensi yang dapat diubah-ubah. Pada kegiatan praktikum di laboratorium elektronika, perangkat generator fungsi dan oscilloscope adalah dua alat ukur yang wajib untuk menunjang proses pembelajaran mahasiswa. Ketiadaan fitur penampil frekuensi pada sebuah function generator mengakibatkan mahasiswa pemula menjadi sulit untuk memperkirakan besaran frekuensi yang diinginkan dan efeknya adalah proses praktikum(pengambilan data) menjadi lebih lama. Penelitian ini memaparkan rancangan frequency counter yang dapat diaplikasikan untuk pengukuran rentang frekuensi rendah hingga menengah menggunakan sistem digital. Rancangan dibangun menggunakan mikrokontroler AT89C2051 dari keluarga MCS-51 yang memiliki fitur minimum agar nilai efisiensi dari resource-nya menjadi tinggi. Hasil desain frequency counter pada penelitian ini terbukti secara simulasi dapat berfungsi secara baik dengan kemampuan daya ukur frekuensi maksimum sebesar 43 KHz menurut perhitungan machine cycle, walaupun demikian secara simulasi ternyata sistem mampu mengukur hingga 47 KHz dengan nilai error 0.223% namun dengan konsekuensi tampilan yang lambat.
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