quiz game - communication with powerpoint

hi,

i'm looking solution connect arduino slideshow. there 3 questions on slides , 1 right answer possible. if right input buzzert, 1 output switches 1. all...

the problem is, when arduino know right input triggert?

any hints?

thanx , nice weekend!

the arduino sketch consists of setup() function called once, , loop() function called in infinite loop. 16mhz crystal, loop called millions of times per second, providing don't appreciably slow down analogread(), serial.print(), or (worst of all) delay().

your question bit confusing. each slide has 3 questions, 1 right answer. presume mean each slide has 1 question, 3 possible answers, 1 of right.

i presume arduino has 3 switches connected it, each of "selects" answer. using digitalread(), can read 3 pins switches attached to, each pass through loop. since user presumably press 1 button, , there aren't race conditions, ought happen fast enough appear user instantaneous, though arduino may have done several thousands of other things before recognizing switch pressed.

once know switch pressed, , 1 was, somehow need communicate information pc, , there.

how propose that? powerpoint has no ability read serial port know of.

Arduino Forum > Forum 2005-2010 (read only) > Software > Interfacing > quiz game - communication with powerpoint

arduino