Tanaman hias dalam pot adalah salah satu kelompok tanaman hias yang cukup populer di Indonesia. Namun memerlukan perlakuan khusus untuk pemeliharaannya. Salah satunya adalah bagaimana membuat lingkungan tanaman hias dalam pot berada dalam kondisi normal. Beberapa indikator yang bisa digunakan untuk mengetahui kondisi normal lingkungan tanaman hias dalam pot adalah suhu dan kelembaban udara, cahaya serta kelembaban tanah. Secara konvensional nilai dari indikator tersebut bisa didapatkan melalui pengambilan sampel tanah dan mengukur suhu dan kelembaban udara disekitar pot menggunakan alat tertentu. Cara tersebut tidak efektif jika dilakukan. Oleh karena itu, diperlukan sebuah sistem yang bisa memberikan informasi lingkungan tanaman hias secara real-time. Internet of Things adalah solusi yang ditawarkan untuk melakukan monitoring tanaman hias dalam pot melalui internet menggunakan smartphone secara realtime. Pot tanaman hias disisipkan microcontroller nodemcu dan dihubungkan beberapa sensor seperti sensor kelembaban tanah, suhu dan kelembaban udara serta cahaya. Nilai yang didapatkan dari sensor tersebut dikirim ke penyimpanan awan melalui microcontroller, kemudian ditampilkan secara realtime di aplikasi SmartPot menggunakan ponsel pintar berbasis android. Apabila kelembaban tanah berada dibawah ambang batas (kering) maka sistem memberikan notifikasi di ponsel pintar dan memperbaharui status di twitter. Pengujian sistem telah dilakukan dan semua fungsi berjalan 100% sesuai dengan yang diharapkan.
This research helps the farmers to do the humidification control and monitor the condition of hydroponic plants in greenhouses in real-time. When it comes to watching the hydroponic plants in greenhouses, the farmers usually experience difficulties because they still do it manually. Activities such as checking the temperature, air humidity, and also water quality in hydroponic plants by coming directly to the greenhouse are still ineffective. Therefore this research aims to make a smart greenhouse prototype for hydroponic plants. Smart greenhouse hardware was built based on the Arduino microcontroller, DHT11 sensor, pH sensor, TDS, DS18b20 temperature, ultrasonic, and esp8266 wifi module. The monitoring system features information on water quality from hydroponic plants and the ability to record farming activities from planting preparation to web-based harvesting. The test results of smart greenhouse monitoring system can display the hydroponic plant conditions and able to do the humidification control with an upper limit of 35 degrees celsius because plant can survive with disease under 35 degrees celsius, with small average offset for the sensor, and an average offset of 1.49 from TDS sensors, with temperature of 0.50 and pH of 0.34.
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