Ryan Harding said:
Is it possible to do two 7 Segment Displays in the same circuit but operated by different switches?
Hmm... do you mean, basically just two of them but both running on the same power supply? If so, then yes.
Ryan Harding said:
What kind of switch does that circuit use? Can it be operated by one press of a simple PTM switch?
Weeeell... if you look at the schematic, you'll see "Count in". If you look at note #1, you will see that the "Counts" or pulses, need to be TTL. Now, I'm still quite new myself, but I do believe that in this case, a good idea would be to use a 555 timer. They produce a TTL signal. Use the program attached to find the values of the two resistors and the cap (you'll see when you get in there) depending on how much of a delay you want between the time you press the button and the time it enters the count. (Yeah, there's going to be a delay. :lol: ) If you want it as quick as possible, then use a 1M resistor for Ra, and a 1pF cap for C. But first, set the voltage for 5 volts, then, make sure you go to monostable, not astable. The resistor and the cap set the speed for a 555 in monostable mode and in astable mode. (Though, in astable mode, there is an extra resistor, Rb.) Astable will create a delayed pulse and repeat it over and over from the time you press the button. Monostable mode will create a delayed pulse only once when you press the button. So, needless to say, you'll want it to be in monostable mode. :wink:
Anyway, if you're just getting into electronics then the 555 timer is going to be something you should get to know. They're fun once you get to know how to use them. :wink: Hope all of this helps, again, any questions and I'll be glad to help, err... try at least. :lol: See ya.
Rain
P.S. Can someone else who knows this stuff better than me make sure I'm right about everything I said please? :lol: