Hi everyone, hope all is good. I have a task, and basically, I had to build a circuit that drives a 7-segment display with logic gates. Now, with the same circuit, I have to use a NE555 timer IC to drive a second display. First part is done the problem I have is I don't know how to include the second 7-7-segment display and the timer IC. I will attach a picture of my circuit below TIA

 

My understanding of your requirement is:

1) You need a second 7 seg Display 2 that flashes Display 1 periodically,
or
2) You need a setup that toggles the display between the Display 1 and Display 2, periodically.

For both options, the 7 segment Anodes of both displays need to be paralled.

For option 1, you need to make a 555 astable with the pin 3 output connected to the Common Ground of the second Display. Whenever the 555 clock output goes LO, the second display comes ON.

For option 2, the setup is the same as for option 1, but the common Cathode of display 1 is connected to Ground through a NPN transistor. The base of this transistor is driven by the 555 output (pin 3).

In this setup, Display 1 is ON when the 555 clock is HI, Display 2 is ON when the clock is LO.

 

Welcome to AAC!

Now, with the same circuit, I have to use a NE555 timer IC to drive a second display.

Please post the complete text for the problem.