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# Number Guessing Game - A 8085 Project

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Design of a number guessing game by using 8085 microprocessor.

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### Number Guessing Game - A 8085 Project

1. 1. NUMBER GUESSING GAME A 8085 PROJECT
2. 2. THE GAME•A very simple game. In this game the player thinksof any number between 0 to 99.•Then he scans the eight groups of numbers given inthe eight boxes in the table.•Each group corresponds to a specific switch(indicated on the top of each group) on an 8-way DIPswitch.•After having scanned all the eight boxes andswitching on the relevant DIP switches, the numberthought of by the person is displayed on the 7-segment displays.•All this is done by I/O interfacing of 8255 with 8085.The input given by the switches and the outputdisplayed on 7-segment displays.
3. 3. THE TABLE
4. 4. THE EXPLANATION•Suppose you want to display 47. For this, 4 is tobe displayed in tens position and 7 in unitsposition. In order to generate 4 (binary 100) on thedisplay 1, switch S2 is to be turned on.•To display 7 (binary 111) on the display 2,switches S6, S7, and S8 are to be turned on.•Thus to generate 47, switches S2, S6, S7, and S8are to be turned on. The number 47 is placed ingroups 6, 7, 8, and 2.•So when you spot 47 in these groups, switch onthe same combination ofswitches.
5. 5. CIRCUIT DIAGRAM