game buzzer

hi guys! can somebody give me some tips on how to create pcb layout and component layout for my game buzzer???? please!!!!!!!!

Just look for a self-driven piezo buzzer. Select what frequency you want. then just connect it in series with a pushbutton and a battery.

When you say game buzzer, do you want a circuit that once button A has been pushed, and the corresponding light or buzzer sounds, pushing button B has no effect, unless the circuit has been reset.

Is this what you are looking for?

I have a few comments with the above circuit.

#1. The nor gates used have too many inputs. You can do the same circuit with a 3-input NOR gate.

#2. Since there is only one buzzer, this circuit is almost unnecessary. All you need to do is put any number of keys together (depending on # of players) in parallel. Connect it to +ve and the SET pin on the 4013 chip.

Connect the SET pin to -ve through a 1K resistor.
Connect Q to the output (buzzer or LED), then to ground.
Connect the clock to ground.
Connect data to ground.

now connect RESET to a key (which turns the output off), then to +ve. Connect RESET to -ve through a 1K resistor.

The buzzer will (and should) work now.

Yeah, what exactly are you looking for? I was just assuming something to make noise.

Mstechca, how do you tell which player pressed the button first?

i built a big game buzzer in my vo-tech class once

it ran on 120v and the output was 3 100W bulbs

used some contacks, relays, wire and push buttons

it was wired so that if everyone puched the putton (there were 3 of these buttons) the first that was triggered would light and ther others would be locked out

Russlk said:

How do you tell which player pressed the button first?

Click to expand...

Look at the player :lol:

I was basically simplifying the above schematic which didn't have a good indication as to who pressed the button.