1. To develop a device for measuring voltage, current, power, and stored energy from solar panels using the INA219 sensor and an ESP32 board.

2. To create a real-time data display system via an OLED display and the Node-RED Dashboard.

3. To design an automatic control system using an energy threshold to decide whether to turn on or off LEDs.

4. To enable users to adjust the energy threshold and reset the energy/time values ​​both with physical buttons and via the Node-RED.

5. To serve as a prototype of an IoT system for renewable energy that can be extended to practical applications in households or small industries.