coin operated machine

Discussion in 'Homework Help' started by minunp, Nov 14, 2009.

  1. minunp

    Thread Starter New Member

    Nov 14, 2009
    hello friends..

    i m going to make one project which is based on coin operated..
    bcoz i have no path for that... from where i have to start..?

    my main aim is that when i insert the coin the machine will be activated then active circuit will give me signal on the serial port..

    means that if i m using 555 timer ic then it will give me analog signal but i have to convert analog to digital ( but how? i dont know plz tell me) then we get digital signal.. then how can i interface with serial port i dont know...
    plz reply me ...