Monitoring Daya Baterai Berbasis Iot (Internet of Things)

Abstract

Real-time battery power monitoring is essential to ensure the performance and reliability of battery-powered electronic systems. This research aims to design and develop an Internet of Things (IoT)-based battery monitoring system capable of accurately measuring current and voltage, and displaying the data both locally on an LCD and remotely via an IoT platform. The system uses the ESP32 microcontroller as the main processing and data transmission unit, the ACS712 current sensor to measure current flow, the LM2596 voltage regulator module to stabilize input voltage, and a 16x2 LCD for direct local display. Resistors are also used for voltage division to match the microcontroller’s input range. Measurement data is transmitted in real-time to an IoT platform such as ThingSpeak, allowing users to remotely monitor battery conditions via the internet. The results show that the system operates reliably, delivers accurate data, and assists users in effective monitoring and maintenance of battery-powered devices.