DIGITAL CALENDAR

[seminar class]

SUBMITTED BY:-
NIKLESH KUMAR

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DIGITAL CALENDAR
PURPOSE OF THE PROJECT
The project will display the date, month and year. In addition to this, it will also display time . We can also set the date and time.
BLOCK DIAGRAM
CIRCUIT DIAGRAM
COMPONENTS
 Microcontroller (PIC 16F873A)
 COMPONENTS
 RTC IC (DS 1307)
 COMPONENTS
 LCD Module
 COMPONENTS
 Capacitors
 Resistors
COMPONENTS
 IC 7805
 RTC Battery
 Oscillators
 Transistors
 Keys
 Connecting wires
WORKING
FOR SETTING DATE AND TIME
• Press ‘set’ key.
• Now day start blinking.
• Set day by pressing ‘increment’ and ‘decrement’ keys.
• After setting desired day, press ‘ok’ key.
• Now months start blinking. Set month , year and time in a similar way.
• Calendar is now set.
WORKING
DISPLAYING DATE AND TIME
• The calendar displays date and time as soon as the power is given.
• Even if there is power failure, the calendar displays the right date and time that it should display , when the power is back .
ADVANTAGES
 Even if there is power failure, the calendar displays the right date and time that it should display, when the power is back.
 Simplicity of the system.
 Accuracy of the system.
APPLICATIONS
Because digital calendar is very small and inexpensive devices that enhance the popularity of product designs, they are often incorporated into all kinds of devices such as
• Cars
• Radios
• Televisions
MODIFICATIONS
• ADDING ALARM
An alarm, with setting of time, will make it more effective.
• ADDING TEMPERARURE SENSOR
A temperature sensor can be used to show the temperature of the surroundings.