The 74LS47 IC takes a 4-bit BCD input and drives the 7-segment display to show the corresponding decimal digit (0–9). The input switches (S1–S4) represent binary ...

In this project, time is calculated in minutes and seconds and displayed on the 7-segment display. The ATmega32 generates BCD values for each digit, which are then sent to the BCD to 7-Segment Decoder ...