Discussion in 'The Projects Forum' started by Simon_m74, Jun 17, 2006.

  1. Simon_m74

    Thread Starter New Member

    Jun 17, 2006
    hello all

    I`m trying to make a money counter

    I have the mechanics to sort out the different coins, but I want to know how many of each coin counted. I want to put a sensor on each output tube for the coins, so that when a coin passes, it will trigger the count up one.

    so ( UK coins here :p ) I have 1p, 2p, 5p, 10p, 20p, 50p, £1, £2 coins

    counting the 1p, 10p, & £1 will be easy, as they will onlt need to increase by `1`
    but the 2p, 20p & £2 will have to count up in 2`s
    and the 5p & 50p will count up in `5`s

    I know how to make the display, and how to get it to count up for one at a time, but can anyone help me in how to count up in 2`s & 5`s ?



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  2. thingmaker3

    Retired Moderator

    May 16, 2005
    One way -
    Use one shot to trigger second one shot on tuppence tube, and use five cascaded one-shots for the - um - nickels? Do they call them nickles?

    Another way -
    Use multiple sensors in the relavant tubes. Tuppence would trigger two sensors. 50p piece would trigger five sensors.