RTC and LCD

 Pinouts:



FT232RL FTDI USB pinouts






LCD 16x2 i2c pinouts







RTC module ds3231 pinout






R307 fingerprint sensor pinout







How It Works

This project creates a real-time clock using an ESP32, DS3231 RTC module, and I2C LCD display.

The Basic Setup

The ESP32 connects to both the RTC and LCD through the I2C protocol. The RTC keeps accurate time even when powered off using its backup battery.



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