I2C Communication with DS1307 RTC and I2C 16x2 LCD using STM32

This repository contains the source code and documentation for I2C Communication with DS1307 RTC and I2C 16x2 LCD using STM32,
where an STM32F410RB microcontroller interfaces with a DS1307 Real-Time Clock (RTC) and an I2C-based 16x2 LCD module.
The project demonstrates I2C communication using STM32 HAL, along with custom Board Support Package (BSP) drivers for the RTC and LCD peripherals.

Features

• DS1307 RTC Interface: Communicates with the DS1307 module over I2C to read and display real-time clock data.
• I2C 16x2 LCD Display: Time and date information from the RTC is displayed on the I2C-enabled LCD screen.
• Custom BSP Drivers: Developed BSP files for both RTC and LCD modules to abstract low-level HAL I2C interactions.
• Dual I2C Usage: Configured I2C1 and I2C2 interfaces using STM32 Pinout Configuration for peripheral separation and clarity.
• Modular Code Structure: HAL-generated base code with user-defined application logic layered on top.

Components Used

• STM32 Nucleo Board (STM32F410RB)
• DS1307 RTC Module
• I2C 16x2 LCD Module (with PCF8574 I2C backpack)
• Breadboard and Jumper Wires

Tools Used

• STM32CubeIDE: For peripheral configuration, code generation, and firmware development
• STM32CubeMX: Used for pin mapping and enabling I2C peripherals

Project Structure

• CODE/BSP: BSP driver for DS1307 RTC communication via I2C and for interfacing with the 16x2 I2C LCD
• CODE/Src & CODE/Inc: Application layer that reads time from RTC and updates LCD display
• Project Photograph:Demonstrates hardware setup, wiring, and actual test scenario