16F84 Digital Clock

This is a digital clock that tells the time and date at the same time on LED displays. The clock is based around a 16F84 Microchip Microcontroller and the program is written in 'C'. The program handles leap years but does not change the time for daylight saving. The time is set using two buttons. One advances through hours, minutes, days, months and years. The other button is used to increment the digits. A feature of the program is time correction. You can set the value to lose or gain time to keep the clock accurate. Once set the clock will be very accurate. The project file below contains project details, schematic, C program and HEX file:

This project is used to generate a random number to be used in the UK national lottery. The random number is between 1 and 49. You press the button to randomly choose a number. This needs to be done six times for a single entry in the UK national lottery. The number is displayed on a 2 digit LED display.