Bengali character based digital clock using 8×8 dot matrix display

Digital clock is a very common device to show the time. 7-segment, Alphanumeric, Liquid Crystal and Graphic displays are commonly used in digital clock. They show time in English character. But, we were motivated to design this useful device showing time in Bengali to respect our national heroes who sacrificed their lives for our language in 21th February, 1952. In this paper, a digital clock is designed which shows time in Bangla character in 8×8 dot matrix display. Here, a real time clock (DS1307) is used to generate precise timing pulse, a microcontroller (PIC 16F877A) is used to adjust the time and to interface the 8×8 dot-matrix displays. The time of the clock can be adjusted by pressing simple push switches. The design is simple, cost effective and user friendly.