Hello,
I am building a scoreboard for a hockey table. It will have a computer attached to it and will use a 7" lcd tv. What I am wondering is what I can use as a switch to detect the puck as it goes throught the net. I was thinking of using an infrared emitter and detector (like this). I plan on interfacing it into a hacked usb keyboard so that when you score, it hits a key on the keyboard which triggers the software to add a goal.

Will this work?

Thanks

 

hi all..
plss help us in making an led scoreboard for basket ball...
as we are not vetrans so know very few about electronics...
plss send us an circuit diagram...
plsssssssssssssssss...................

thanx....

 

sanchvikh
If you have a question of your own, start your own thread.
Dont highjack someone else's thread even though it is a similar topic.


murray

The principle is right. So yes it will work if you do everything you need to.

I once had the idea of making a telephone dialer.
I looked into ways of machanically pressing keys on a telephone, then to using relays to each switch contact....
Then I came to my sences and bypassed all that, because that was all getting a little messy...
I looked into DTMF chips and used a PIC (microcontroller) to control the DTMF chip to generate a Tone, then interfaced it to the phone line and did it that way.
I practically made a telephone minus the handset.

Anyways... the point i wanted to make is with the hacked keybaord, maybe you can look into interfacing stright to the USB port.
I myself have never done this so I cant help you there..
But i know when you press a key on a keyboard, it sends the ASCII character in binary form to the USB.
It would be alot neater and you would learn a lot by doing it that way.

And your idea on using the IR beam is the way to go for counting goals.

__________________

 

Question is... why do you want a computer hooked up to it?

USB protocol can be a pain. Sounds like a project Rube Goldberg would love. Score a goal, a marble falls down a chute, triggers a reed switch than then shocks a monkey in the cage who then starts furiously punching away at a usb keyboard plugged into the computer.

Seriously though, get one of Bill's training boards blueroomelectronics - Smart Kits Build Smart People and skip the keyboard.

 

hi..
sorry 4 the intervention..but m really not geting how to make a new thread....help!!
and plssss... plsss... rply to the previous question....
thanx alot...

 

Which previous question?

__________________
Bill
Smart Kits build Smart People
http://www.blueroomelectronics.com/

 

sanchvikh
Its easy.

You go home.
You click the forum which most relates to your question.
you click "new thread" at the top left.

__________________

 

jakeselectronics

thanx...