Dice

BATCH NO-4
DICE WITH 7-SEGMENT DISPLAY
ABSTRACT
A digital dice round can be easily realised using an astable oscillator tour of duty followed by a counter, show driver and a display.

present we have used a timer NE555 as an astable oscillator with a frequency of about century Hz. Decade counter IC CD4026 or CD4033 (whichever available) can be used as countercum- display driver. When using CD4026, pin 14 (cascading output) is to be left unfounded (open), but in case of CD4033, pin 14 serves as lamp test pin and the same is to be grounded.

The circuit uses tho a handful of components. Its power consumption is also kinda low because of use of CMOS ICs, and hence it is well suited for outpouring operation. In this circuit two tactile alteres S1 and S2 have been provided.While faulting S2 is used for initial resetting of the display to 0, depression of S1 simulates throwing of the dice by a player.

When battery is connected to the circuit, the counter and display dent around IC2 (CD4026/4033) is energised and the display would normally show 0, as no quantify input is available.



Should the display show any other decimal digit, you may press re-set switch S2 so that display shows 0. To simulate throwing of dice, the player has to press switch S1, briefly. This extends the supply to the astable oscillator configured around IC1 as well as capacitor C1 (through resistor R1), which charges to the battery voltage. gum olibanum even later switch S1 is released, the astable circuit around IC1 keeps producing the clock until capacitor C1 discharges sufficiently. Thus for duration of depression of switch S1 and discharge of capacitor C1 thereafter, clock pulses are produced by IC1 and applied to clock pin 1 of counter IC2, whose count advances at a frequency of 100 Hz until C1 discharges sufficiently to deactivate IC1.

When the...If you want to get a full essay, order it on our website: Ordercustompaper.com



If you want to get a full essay, wisit our page: write my paper