A comprehensive solar energy monitoring system using ESP32 microcontroller that tracks solar panel performance, battery status, and load consumption in real-time.

16x2 I2C LCD HD44780 + PCF8574 Local status display 1 $8-12 Piezo Buzzer 5V Active Audio alert system 1 $1-2 DC Motor Fan 5V, 2-wire Temperature-controlled cooling 1 $3-5 TIP122 Transistor NPN ...