7 Segment Project Report RUPP

                       Royal University of Phnom Penh 

                                             Faculty of Engineering

                                        Department of Information Technology Engineering 

                                        Generation 8

      Professor: Thap Tharoeun 

      Student name: Met Chakriya

      Class: M3   

                                                                      7 Segment 

• About 7 Segment

The seven-segment is like the electronic device that displays the LED's decimal number output.  It shows decimal number from  0 to 9. 

The process about 7 segment is about the each segment has 7 parts in it and letters from A to G and represent number. 

Note: There are only number that represent in 7 segment are 0 and 1. If input is 0, there is a display output and if input is 1, there is no display output on the LED. All 7 parts of segment aren't connected. 

• Decimal and Binary number system. 

The decimal numeral system is the standard system for denoting integer and non-integer numbers or we known as base 10. There are only nine numbers in decimal, there are 0,1,2,3,4,5,6,7,8, and 9. 

 The binary number system is a number expressed in the base-2 numeral system or binary numeral system, a method of mathematical expression which uses only two symbols: typically "0" and "1".

 How we convert from Decimal to Binary: we can use this tip by do division by 2 until 0 and take note the remainder at the right side, so we can see the answer by that.

                                        Or we can it online like this:

 How we convert from Binary to Decimal: we have to take the binary number and adding each number by its weight( binary digit x raised power of digit). add

or we can do it online like this: 

• 7 Segments Input and Truth Table

This is all 7 inputs and the truth table. All inputs are different numbers, so we can get the different output displays of LED.  

                                     How can we see the display output by using this table: 

       

Example: Display output number 4. As we see in the table earlier, number 4 in decimal equal 0100 in binary and 1001100 in segment input. If input is 0, it will shows on LED and if it's 0 it will not shows.  

  

Compare this picture( look at the place where all letters stand) and look at the input in the table. We look at where's letter A stand and input A=1, so on the LED is not shows. Look where's letter B stands and input B= 0, it shows on the LED. We can continue look at them one by one for all letter and try another number display output. 

  

• Boolean Expression 

 For Boolean Expression A, for example. First, we have to look at the input of that letter A( look down) and then look at the number 1 in that input. Then for input 1, we need to look at the left side and write the binary number s in the same column as number 1 input. For input that is 1 we write A and 0 we write A'. 

Following the arrow sign I have color it and look at it one by one. We can try other input. 

Here are all the Boolean Expression for all inputs.  

 

Here is some pictures that we use 7 segments in proteus simulation.