This project uses an ESP8266 NodeMCU to create a 12-hour format NTP clock with AM/PM, date, and day of the week, displayed on a 16x2 I2C LCD. The clock synchronizes time via the NTP (Network Time Protocol) to ensure accuracy.

Features

Displays real-time clock (12-hour format) with AM/PM indicator.

Shows current date and weekday.

Synchronizes time via NTP server.

Uses I2C 16x2 LCD for display.

Auto-updates time based on Indian Standard Time (IST, UTC+5:30).

Components Required

16x2 I2C LCD 1pcs

ESP8266 NodeMCU 1 pcs

Circuit Diagram

Installation & Setup

1. Install Required Libraries

Make sure you have the following libraries installed in Arduino IDE:

LiquidCrystal_I2C (Download)

NTPClient (Download)

ESP8266WiFi (Comes with ESP8266 board package)

2. Upload the Code

Open the provided code in Arduino IDE.

Replace your_SSID and your_PASSWORD with your WiFi credentials.

Select ESP8266 NodeMCU as the board.

Upload the code and open the Serial Monitor (115200 baud rate).

How the Code Works

WiFi Connection: Connects ESP8266 to a WiFi network.

NTP Synchronization: Fetches time from an NTP server (pool.ntp.org).

Time Conversion: Converts 24-hour format to 12-hour format with AM/PM.

Display Update: Updates the LCD every second with time, date, and weekday.

Clock Demo

Troubleshooting

LCD not displaying anything?

Run the I2C Scanner to find the correct I2C address and update it in the code.

Ensure SDA and SCL pins are connected properly.

WiFi not connecting?

Double-check your WiFi SSID and Password in the code.

Make sure your router is working correctly.

For further assistance, feel free to ask! 🚀