High economic growth makes the demand for comfortable and safe houses increasingly increase and the most obvious application of technology is technology with automated systems. With this technology, the use of electricity in homes can be monitored remotely. With the aim of optimizing and time efficiency, this research created a control system based on IoT system. The control system with the function of providing security and comfort for the homeowner and the people who live in it, because it can facilitate the work to be faster, effective and efficient. In this regard, in this research the title “Design of Controls and Monitoring of Electricity Loads, and Home Safety with IoT-based Arduino Mega 2560 Systems” is adopted. This application is used as consideration for someone applying the concept of smart homes and the Internet of Things in real life. The results of this research are testing the camera to process the results of taking pictures until the upload process is completed in storage on a computer that is made as a client server is 30 seconds and the entire system works properly and normally.
<p>Since implementing the long term evolution (LTE) technology, the surge in data service traffic has increased, causing an increase in demand spectrum, which has resulted in gaps in capacity requirements. Wireless service providers can respond to LTE technology updates. With LTE advanced pro technology that utilizes unlicensed spectrum technology can provide solutions to increase capacity and throughput. In this study, LTE advanced pro planning by capacity method to find the number of eNodeB and using the discounted cash flow method to analyze the feasibility of the costs to be invested in the implementation of the LTE. The results of the four simulated scenarios concluded that the number of eNodeB from the IV scenario with 20 MHz bandwidth at 1800 MHz frequency and 20 MHz bandwidth at 5 GHz frequency amounted to 23 sites, with a positive NPV value of $ 271,936.96, IRR of 14.91%, and for payback period occurred in the 3rd year. Thus the fourth scenario is feasible to be implemented.</p>
Urban farming (berkebun di tengah perkotaan) kian diminati masyarakat modern. Tidak hanya menjadi tren gaya hidup, urban farming juga memberikan peluang bisnis. Salah satu tanaman yang dapat dibudidayakan di rumah adalah jamur tiram. Budidaya jamur tiram cukup mudah, namun membutuhkan lingkungan khusus untuk tumbuh dan berkembang. Agar dapat melakukan budidaya jamur tiram di rumah, diperlukan suatu rekayasa suhu dan kelembapan untuk mencapai suhu dan kelembapan optimalnya. Penelitian ini menghasilkan suatu sistem kendali suhu dan kelembapan yang dapat dimonitor dan dikendalikan melalui smartphone berbasis internet of things. Input sistem berupa suhu dan kelembapan yang dideteksi oleh sensor DHT22, kemudian dibaca oleh NodeMCU dan dikirim ke aplikasi Blynk melalui koneksi WiFi. Blynk pada smartphone akan menampilkan suhu dan kelembapan yang terbaca oleh NodeMCU. Jika suhu dan kelembapan berada diluar rentang suhu dan kelembapan optimal jamur tiram, akan muncul notifikasi pada smartphone. Kendali suhu dan kelembapan dapat dilakukan dengan menekan tombol ON/OFF pada Blynk sehingga dapat menyalakan dan mematikan lampu ataupun kipas sesuai kebutuhan agar suhu dan kelembapan kembali optimal. Berdasarkan pengujian, sistem berhasil menampilkan suhu dan kelembapan pada smartphone, menampilkan notifikasi dan melakukan kendali. Galat relatif pengukuran suhu sebesar 2,6% dan galat relatif pengukuran kelembapan sebesar 3,2%.
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