The temperature of the air is the state of hot air caused by the heat of the sun. Factors that affect the amount of solar heat received by the earth are cloud, the surface plane, the angle of the sun, and the length of the sun's exposure. The heat of the earth's surface by solar radiation affects the heat of the air. Earth's surface air temperature varies because sunlight spreads unevenly on the earth's surface. The research aimed to design and implement a series of tools that can measure the ambient temperature and provide information about the environmental temperature via telegram. The methods used in this research were analyses consisting of needs analysis, and analysis of how it worked. Hardware and software implementations were also applied. The research carried out several tests, including tests on the DHT11 sensor, LED light, LCD i2c, Ethernet Shield, and Telegram test. The integration test on the LCD showed that when the temperature was below or the same as 25˚C, the green LED would be ON and the red LED OFF, which indicated that it was cold temperature. Conversely, when the temperature was the same or above 30˚C, the red LED would be ON, and the green LED OFF, indicating that the temperature was hot. The second test was to compare digital and analog sensors. The comparison values of the digital and analog temperatures were 1.1˚C, and the humidity was 23.1% RH. The highest temperature obtained from the system per day was 34˚C, and the lowest temperature was 23˚C.
Strawberry is one of the commodities of subtropical fruits growing in Indonesia. It has a high economic value, attractive appeal in a red and fresh sweet fruit. The color of a strawberry shows its maturity stages, and the strawberry maturity stages affect postharvest quality. The research aimed to design and implement a tool to approve and apply the maturity stages of strawberries using Arduino Uno and display the information on the web. The method included needs analysis and analysis of work, and the design consisted of hardware design and network design. The testing consisted of TCS3200 sensor testing, LCD testing, servo motor testing, and WEB testing. The results of this study found that when the strawberry fruit was declared mature by the TCS3200 sensor as the color detection sensor, the LCD would display the texts, and the servo would open. The system on the WEB would display the total information of the sorted strawberries.
<p><em>private cloud computing dengan layanan Infrastructure as a Service (IaaS), yaitu tentang layanan sumber daya komputasi yang di virtualisasikan pada kampus Universitas Ibn khaldun Bogor (UIKA) dengan tujuan penggunan sumber daya komputasi tak terbatas sesuai dengan kebutuhan atau selalu bertambah sesuai dengan kebutuhan, pengguna dapat dengan mudah merubah dan merekonfigurasi sumber daya yang dikuasinya, sekaligus menjadi salah satu cara penghematan biaya penyedian sumber daya hardware server. Tujuan penelitian ini adalah menerapkan penempatan host server yang ada saat ini secara fisik menjadi berbasis virtualisasi. Metode penelitian yang digunakan adalah Network Development Life Cycle (NDLC) sebagai langkah-langkah dalam mendesain proses implementasi dan analisis. Hasil penelitian ini adalah simtem layanan private cloud computing berbasis IaaS di data center kampus Universitas ibn khaldun (UIKA), dapat diterapkan menggunakan metode hypervisor native bare metal dan aplikasi proxmox. Hasil pengujian menyatakan bahwa data center berbasis IaaS secara sumber daya dapat menghemat, mengoptimalkan, dan pengelolaan sumberdaya dari kebutuhan layanan sistem infomasi yang harus di sediakan kampus UIKA. Berdasarkan uji usability menunjukkan aplikasi proxmox telah sesuai dengan kebutuhan manajemen yang ada pada administrator IT kampus UIKA, yang memenuhi aspek Learnability, Efficiency, Memorability, Errors, dan Satisfaction.</em></p>
The development of science and technology has been increasing rapidly, providing convenience in everyday life. Various household appliances and office work tools use electronic devices to ease the works, including bell warning systems for prayer times. The system notifies the people when the times for prayer comes. The warning systems used presently have not operated automatically. The research aimed to design and implement a series of automatic warning bell system for prayer times, that sent a notification to the telegram. It used Arduino Mega 2560 as the data processor. The result found that the tool, equipped with an RTC, a Dfplayer, a loud-speaker, and an Ethernet Shield, worked satisfactorily by sending a notification to the Telegram.
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