pc controlled quiz buzzer
October 28, 2010 8:46am CST
can anyone help me with this?? i had build the buzzer i had the codes (edited the graphics (running)) the connections were assembled as instructed. but it seems that something goes wrong.,, while i'm debugging the program it doesn't "buzz" or create sound when i pressed those buttons that i had created but it seems good to me''.. can anyone explain to me deeply those connections with the parallel port?? please''.... http://electrosofts.com/parallel/buzzer.html (here's the link of the source code)
28 Oct 10
Sir if I may, the parallel ports in diagram are refereed to the inputs which is the pin 2 3 5 6 10 11. the pins are parallel to the VCC at normal condition it has a voltage input 2 3 5 6 10 11. if the button is pressed that the time that it will go to ground(pin 8) and trigger the input.