Alarm clock project (with external IC)

Let's make an alarm clock. We can make one with only the PIC microcontroller or with the PIC and an alarm clock IC. We can display the time on an LED seven sement display.

My plan is to use the PIC and an external IC to make an alarm clock on an LED seven segment display. If you want to display the time on an LCD display, we will have to learn the LCD display first.

Certainly, an alarm clock program can be written entirely on the PIC microcontroller. I prefer to use an external IC because an alarm clock uses a different crystal frequency than the microcontroller. Also, using an external IC frees the microcontroller to have a clock and control other devices also.

Prerequisite(s):

I2C serial communications to use external clock IC.

LCD display if you want to display on an LCD display.