IR gate counter HELP!

[allvol]

Yes, Chris.

 

[rybitski]

Yes, I am familiar with the 555...
Where would you recomend buying these components (not the 55 I have one of those)? Would you happen to have a few lying around?

 

[allvol]

Hi Chris,

Lately I have been buying my components from www.futurlec.com

View attachment 38974

 

[rybitski]

Futurlec.com is AWESOME! I was surprised at how cheap everything was and how cheap shipping was... Thank you for telling me about it!
I spent $20 and got a bundle of goodies...

 

[rybitski]

Thank you for your time and responses!
I have ordered the 74LS90's an according to the site should be here in 1-2 weeks according to the site.

The counter part is designed, but I'm still not entirely sure how to make the imput part.

For everytime the IR beam is interupted the count should increase by one.
I will attach a diagram of what I need.

View attachment 38975

 

[allvol]

Hi Chris,

Glad you are happy with Futurlec.

View attachment 38976

 

[rybitski]

Would something like this work? or am I missing something...

View attachment 38977

 

[rybitski]

So I'm a little confused, here is how I think it should look...
I'm confused about where to connect pin 5, I am assuming that it connects to +5v, I don't know... Take a look and tell me what you think...

View attachment 38978

 

[rybitski]

I should get around to buying a breadboard... After I placed my order on futurlec.com I saw they had them... Maybe I will borrow one from my physics teacher...

So it looks like all that is left for the parts to arrive and to start testing... Thank You for all of your help! I will keep you informed of my progress as soon as there is any...
Thank you.

 

[allvol]

Hi Chris

I think we are cross messaging.