DC Remote Power Sensor

Reliable DC power monitoring is important in remote and off-grid areas where AC supply is unstable or unavailable. This project presents a low-cost IoT-based DC remote power monitoring system using the ESP32 microcontroller with built-in Wi-Fi and Bluetooth. A GSM module is included to provide SMS alerts when internet connectivity is not available. Real-time DC parameters are displayed on an LCD screen and can be monitored remotely through the Blynk Android application, which also allows relay control. A buck XL4016E1 DC-DC 10A 300W stepdown module is used to supply regulated power to sensors, buzzer and other system components. A relay and buzzer provide local alerts and manual control for improved safety. The system is suitable for solar-powered, battery-operated, telecom, and off-grid applications, offering a cost effective and reliable solution for remote DC power monitoring.