RANCANG BANGUN SISTEM MONITORING KONDISI MEDIA TANAMAN ANGGREK BERBASIS INTERNET OF THINGS MENGGUNAKAN ESP32

Aldino Purwanto Putera, Ir. Budi Bayu Murti, S.T., M.T.

2026 | Tugas Akhir | D4 TEKNOLOGI JARINGAN

Penelitian ini bertujuan merancang dan membangun sistem monitoring kondisi media tanaman anggrek outdoor berbasis Internet of Things menggunakan mikrokontroler ESP32 di Ekowisata Kalitalang. Sistem memanfaatkan sensor DHT22, dua Soil Moisture Sensor v1.2, dan sensor LDR untuk memantau suhu udara, kelembaban udara, kelembaban media tanam, serta intensitas cahaya. Data hasil pembacaan sensor dikirim ke platform ThingSpeak setiap 20 detik dan sistem mengirimkan notifikasi melalui Telegram Bot ketika parameter berada pada kondisi kritis. Pengujian sistem meliputi akurasi sensor, pengiriman data ke ThingSpeak, notifikasi Telegram Bot, Quality of Service (QoS), serta kapasitas monitoring ESP32. Hasil pengujian menunjukkan seluruh sensor berhasil melakukan pembacaan sesuai fungsinya, data berhasil ditampilkan secara real-time pada ThingSpeak, dan notifikasi Telegram Bot berfungsi sesuai kondisi yang ditentukan. Pengujian QoS menghasilkan nilai Throughput sebesar 493–529 bit/s dengan komunikasi TCP yang tetap berjalan baik, sedangkan pengujian kapasitas monitoring menunjukkan nilai Free heap ESP32 stabil pada kisaran 225–226 KB. Berdasarkan hasil tersebut, sistem mampu melakukan monitoring empat parameter lingkungan secara real-time dengan komunikasi yang stabil serta kapasitas monitoring yang memadai untuk menangani empat sensor secara bersamaan.

This research aims to design and implement an Internet of Things (IoT)-based monitoring system for outdoor orchid growing media using an ESP32 microcontroller at Kalitalang Ecotourism. The system employs a DHT22 sensor, two Soil Moisture Sensor v1.2 units, and an LDR sensor to monitor air temperature, air humidity, soil moisture, and light intensity. Sensor data are transmitted to the ThingSpeak platform every 20 seconds, while critical conditions trigger notifications through a Telegram Bot. System evaluation includes sensor accuracy, ThingSpeak data transmission, Telegram Bot notification, Quality of Service (QoS), and ESP32 monitoring capacity. Experimental results show that all sensors performed as expected, sensor data were successfully displayed on the ThingSpeak dashboard in real time, and Telegram notifications were delivered as expected. QoS testing achieved a Throughput of 493–529 bit/s with stable TCP communication, while ESP32 monitoring capacity evaluation showed a stable ESP32 Free heap of 225–226 KB. Therefore, the proposed system is capable of monitoring four environmental parameters in real time with stable communication performance and sufficient monitoring capacity to support simultaneous operation of four sensors. 

Kata Kunci : Internet of Things, ESP32, Monitoring Tanaman Anggrek, ThingSpeak, Telegram Bot, Quality of Service