Good day everyone!

I really need help on this one. I don't know much about circuits. I have to build a simple circuit which displays numbers 0-7 when triggered. What I want to happen is if I pressed a button or something, the number displayed will increase(ex. 1 will become 2 and so on..). Also, when it gets to 7 and I triggered it to increase, it should reset to 0. I'll be using a breadboard for this. I tried searching for schematic diagrams and i found this websites :

http://www.play-hookey.com/digital/experiments/seven_seg_driver.html
http://www.aaroncake.net/circuits/counter.asp

I got a little idea from these websites but I still need some enlightenment. I need your help as soon as possible. I need a some sort of tutorial or step-by-step procedure in making these, so I can truly understand. If you know any sites. Please tell me. Thanks in advance for all those who will be sharing their knowledge.

 

Shift register IC > BCD > Display decoder/driver IC ?

 

So you want a simple 7 segment 0-9 counter with a carry in and a carry out?

Question (with no disparagement), are you new to electronics where you have problems translating their schematic to a protoboard?

This site is very friendly to beginners, but we have to know your level of expertise to help properly.

What parts do you have, or what can you get? A 7490 and 7447 are classic ways to do it, but the parts are a little hard to get nowdays, and it is by far not the only way to do this.

Just something to start you off...

http://www.allaboutcircuits.com/vol_6/chpt_7/9.html

 

Can you use ICs or do you have to design the system with Flip Flops yourself?

And yea, how much do you know about digital design?

 

I'm really new. I only have little knowledge about this. But I know how decoders work. My friend gave me some ICs that I can work on. I now have a 7447 and a 555 timer?