Digital Clock with ESP32 and DS1307 RTC (I2C + LCD)

In this project, we display the time and date on a 16x2 I2C LCD screen using the DS1307 real-time clock (RTC) module. The DS1307 is a battery-backed RTC that maintains the time even if the ESP32 is powered off. Both modules share the same I2C bus (SDA/SCL), allowing us to learn how to control multiple devices using just two signal wires. Through this project, you will gain practical knowledge of the I2C communication protocol, RTC module operation, and dynamic data display on an LCD screen.