Countdown timer with 7 segment display ..#2

Thread Starter

Angus R

Joined Nov 7, 2022
1
If you're referring to this circuit, then you have to add in the 10 min timer and the button inputs.

View attachment 148211

As that poster used it for scoreboard display. It has 2 identical parts. You just have to make half of the circuits.

Allen
Hiya mate, what do I have to do to this, Im trying to use this circuit as a countdown for a rugby score board im trying to make, but I don't understand what you mean with what I need to do with it to make a full countdown. Also is there any way to add in a pause?
Many thanks
Angus

Mod: link to old thread.
https://forum.allaboutcircuits.com/...er-with-7-segment-display.146572/post-1247684
 

dl324

Joined Mar 30, 2015
15,453
Welcome to AAC!
Im trying to use this circuit as a countdown for a rugby score board im trying to make
Don't know anything about rugby. What time do you need to count down from?

What type of LED display are you planning to use? Common cathode or common anode?

I wouldn't recommend using 74LS because they cost more now than they did in the 70's. What supply voltage will you be using?
 
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