PEMBUATAN MINI PROTOTYPE SISTEM PENGADUK OTOMATIS BERBASIS ARDUINO UNTUK DRY CHEMICAL POWDER PADA FOAM TENDER DENGAN SENSOR KELEMBABAN YL-69

Dry Chemical Powder (DCP) pada kendaraan Foam Tender sering mengalami penggumpalan akibat kelembaban tinggi, terutama di Bandar Udara Jenderal Ahmad Yani Semarang, sehingga menurunkan efektivitas pemadaman kebakaran. Berdasarkan teori tentang karakteristik DCP, faktor kelembaban, serta kajian penelitian terdahulu mengenai sistem otomatis berbasis mikrokontroler, dirancang sebuah mini prototype sistem pengaduk otomatis berbasis Arduino yang dilengkapi sensor kelembaban YL-69. Penelitian menggunakan metode Research and Development (R&D) dengan pendekatan ADDIE, mencakup analisis masalah, perancangan rangkaian dan logika kontrol dengan ambang kelembaban 20%, pembuatan perangkat keras dan lunak, pengujian dalam kondisi DCP kering dan lembab, serta evaluasi kinerja. Hasil pengujian menunjukkan prototype mampu mendeteksi kelembaban ≥20% dan mengaktifkan pengaduk secara otomatis hingga DCP homogen kembali, menampilkan nilai kelembaban dan status pada LCD, serta bekerja stabil dan efisien. Sistem ini efektif mencegah penggumpalan DCP, mengurangi beban kerja manual, dan berpotensi diterapkan pada skala penuh di kendaraan Foam Tender.

Kata Kunci: Dry Chemical Powder, Foam Tender, Arduino, Sensor Kelembaban YL-69, Sistem Pengaduk Otomatis

Dry Chemical Powder (DCP) in Foam Tender vehicles often experiences clumping due to high humidity, particularly at Jenderal Ahmad Yani International Airport in Semarang, thereby reducing fire extinguishing effectiveness. Based on theories regarding DCP characteristics, humidity factors, and previous research on microcontroller-based automatic systems, a mini prototype of an automatic stirring system was designed, using Arduino equipped with a YL-69 humidity sensor. The study applied the Research and Development (R&D) method with the ADDIE approach, covering problem analysis, circuit design and control logic with a 20% humidity threshold, hardware and software development, testing under dry and moistened DCP conditions, and performance evaluation. Test results showed that the prototype could detect humidity levels ≥20% and automatically activate the stirrer until the DCP became homogeneous again, display humidity values and system status on the LCD, and operate stably and efficiently. This system is effective in preventing DCP clumping, reducing manual workload, and has potential for full-scale application in Foam Tender vehicles.

Keywords: Dry Chemical Powder, Foam Tender, Arduino, YL-69 Humidity Sensor, Automatic Stirring System