Arduino based digital Clock

Requirements :
  
1.Arduino
2.  RTC DS1307 Module
3.16x2 LCD
4. cables
5. breadboard
6.potentiometer



Object: This Arduino based Real time clock is a digital clock to display real-time using an RTC IC DS1307 which works on I2C protocol. Real-time clock means it runs even after power failure. When power is reconnected, it displays the real-time irrespective to the time and duration it was in off state

Connecting it all together:

This project will use a number of jumper cables within a very small space so take your time to check and recheck your placements so as not to produce any magic blue smoke.

Connect the LCD to the Arduino, just to check everything works as it should. Start with the red and black power cables from the Arduino to the breadboard, and then power on the LCD screen. If you display doesn't have a backlight, ignore pins 15 and 16 on the LCD screen (the far right connectors).

LCD Connections where Pin 1 on LCD is far left:

• 1 - Ground Rail
• 2 - 5v Rail
• 3 - To potentiometer
• 4 - Digital 12
• 5 - Ground Rail
• 6 - Digital 11
• 11 - Digital 5
• 12 - Digital 4
• 13 - Digital 3
• 14 - Digital 2
• 15 (Backlight) - 5v Rail
• 16 (Backlight) - Ground Rail

challenge:

1.challenge to implement properly

2. sometimes the code gets bigger  

3.circuit design correctly