Desain Mekanikal dan Implementasi Sensor Kelembapan Dalam Sistem Monitoring Inkubator Bayi

Abstract

The infant incubator system is an essential device designed to maintain stable environmental conditions for newborns, particularly premature infants who require intensive monitoring. In this study, a Simple Baby Incubator System was developed, equipped with a DHT22 temperature and humidity sensor as well as a KY-038 noise sensor to monitor the incubator environment in real time. The temperature sensor ensures that the incubator temperature remains within the safe range of 32–36 °C, while the humidity sensor maintains optimal humidity levels of 50–70%. In addition, the noise monitoring feature detects surrounding sound disturbances that may affect the infant’s comfort or stability. All sensor data are processed using an ESP32 microcontroller and transmitted wirelessly to an Android application, allowing caregivers or parents to monitor the incubator conditions remotely. The Android application displays graphs of temperature, humidity, and noise level changes, and provides warnings or alarms when sensor values exceed the safe limits. The test results indicate that the system operates reliably in monitoring temperature, humidity, and noise levels. The DHT22 sensor provides an average accuracy of ±0.5 °C for temperature and ±2% for humidity, while the KY-038 sensor responds quickly to environmental noise fluctuations. Additionally, set point testing for temperature and humidity control showed that the system successfully maintains the desired thresholds, allowing the incubator to operate smoothly and consistently. Data transmission from the ESP32 to the Android application occurs with minimal delay, with an average response time of less than one second. The alarm system also functions effectively when abnormal sensor readings are detected. Overall, the system successfully achieves continuous, accurate, and accessible monitoring and control of the infant incubator environment. This simple incubator system has proven to be a feasible, economical alternative for small healthcare facilities as well as home use.