Abstract
This research aimed to design a control and monitoring system of temperature and humidity in a mushroom kumbung miniature using internet-based Wemos D1 microcontroller, controlling temperature and humidity during mushroom growth, and measuring the rate of growth and development of fungi. This study used an experimental method in Tanjung Karang Permai Sub-District, Sekarbela District, Mataram City. Research data were analyzed using Ms. Excel application. The results of DHT11 temperature sensor calibration on hygrometer with warm water showed a linear equation of y = 1.0402 x – 0.1423 and R² = 0.9905. Calibration using cold water showed linear equation of y = 1.081x – 1.7457 and R² = 0.973. Whereas humidity calibration using hygrometer showed linear equation of y = 1.1203x – 8.3253 and R² = 0.8606. MAPE for warm water was 3.58% and for cold water was 3,48%. Whereas MAPE for RH was 0.082%. The temperature and humidity control system was tested at setting point temperature of 28°C and humidity of 85%. The test results showed that mushrooms without control system were yellowish, dry, and hard texture. Whereas with treatment, the fungus appeared white, wet, and soft texture. The number of mushrooms with treatments were higher and grew more evenly compared with without treatment. Based on the results of the study it can be concluded that the control system could regulate temperature and humidity inside mushroom kumbung also could monitor them through mobile phones with Blynk application.