Abstract
This research aimed to design and optimize an automated control system for phototherapy equipment to improve neonatal jaundice treatment. The system was developed to address challenges of overheating and unreliable power supply common in rural health settings. The design employed a DHT11 temperature sensor and an Arduino Nano microcontroller to regulate the heat generated by LED lamps, ensuring thermal safety. The system also featured automated light intensity and power control mechanisms that switch seamlessly between AC and DC sources. Testing revealed that the temperature control system maintained safe operating conditions (≤ 38°C) and enhanced equipment reliability under unstable power conditions. These findings indicate that incorporating automation into phototherapy devices significantly improves their safety and adaptability for low-resource environments. It is recommended that similar automated features be integrated into other neonatal care technologies to improve outcomes in underserved communities.