The presentation is about the introduction of Arduino UNO, its description and usage. It also contains the pin configuration of Arduino along with its programming structure to implement a single blinking LED light.

1. Project No:03
Title of Project: Display a
Character on a 7 Segment Display
Presentation on Project

2. 222Prepared For
Md. Alomgir Hossain
Senior Lecturer
Department of Computer Science & Engineering
Prepared By
Group – Micro Engineers Section-F
Name ID No Name ID No
Rihab Rahman (Leader) SECRET Abu Sufian Sabuj SECRET
Shohag Mia SECRET Mohammad Tamim Rahman SECRET
Alomgir Hossen SECRET Zerin Akter SECRET
Saifullah Al Mamun SECRET Kaisary Zaman SECRET
Tasnia Tahsin SECRET Maseat Nahar SECRET
Ikram Asif Khan Radi SECRET

3. Objectives 3
 Aim/Objective Of Project
 Apparatus Required
 Software Installation Process
 Code Installation Process
 Working Procedure
 Circuit And Schemetic Diagram
 Source Code And Result

4. Objective and Apparatus
 Objective: The purpose of this lab was to become
comfortable with the ins and outs of utilizing a
breadboard, as well as constructing a proper seven-
segment display.
 Apparatus Required: The following electronics components
are required.
4
Arduino Uno Board
USB B Cable
7 Segment Display (1 pc)
Resistor (1kΩ) (7pcs)
Jumper Wires (8pcs)
Battery Power Source

5. 5
Software Installation Process
Step-1: Install the appropriate Arduino Software for your desktop
operating system from the official website of Arduino. The link is
given below: https://www.arduino.cc/en/Main/Software

6. 6
Software Installation Process
Step-2: After completing the download connect your Arduino board
with the USB B wire to your computer. You will see the power LED on
once connected. It will help the software to detect the Arduino board
automatically with Port No as well.

7. Software Installation Process 7
Step-3: Click on Arduino icon and it will start the installation. During
the installation it will require some permissions. So click on accept or
next or yes as per the dialog box will appear.
If you face any problem is install the software you can see the
following tutorials
For windows 7: https://www.youtube.com/watch?v=ylPpO-NG2pA
For windows 10: https://www.youtube.com/watch?v=pfUR7Qa88sk
Now you are done with the software installation process.

8. 8Code Installation Process
Step-1: Connecting Arduino to the computer
1.1 Open the Arduino IDE by clicking on the Arduino Icon.
1.2 Connect your Arduino to the computer using the USB cable
1.3 Make sure to select the right board (see below screen-shot)

9. 9Code Installation Process
1.4 Then select the correct serial port. (see below screen-shot)

10. 10Code Installation Process
Step-2: Open a new window. Write your code for blinking single LED.
2.1 Then click on the Sketch menu and check for any typos / errors
using verify button and Compile to the machine language if the
verification is successful.

11. 11Code Installation Process
2.2 If the above process is successful, you should see the message in
the status bar showing that the compilation is successful.
2.3 Now upload your program to the Arduino by clicking upload button
in the Sketch menu.
2.4 You might face some issues if you have not selected a correct
board/serial port. So please make sure you went through the part 3
and 4 carefully. Now you are all set complete the necessary electrical
connections as per the circuit diagram.

12. 12Working Procedure:
1. After completing software installation and coding upload
unplug the board.
2. Connect the output pin no 1, 2, 3, 4, 5, 6, 7 of Arduino
board with 7 resistors on the bread board.
3. Connect the resistors with the A, B, C, D, E, F and G
terminal of the 7 segment display according to the pin no
sequence of Arduino Board.
4. Connect any of two negative terminals of the 7 segment
display with the ground pin of Arduino board.
5. Supply power to the Arduino board by USB B wire or
external power port.

13. 13Circuit Diagram

14. 14Schematic Diagram

15. 15Source Code
int a = 1;
int b = 2;
int c = 3;
int d = 4;
int e = 5;
int f = 6;
int g = 7;
void setup() {
pinMode(a, OUTPUT);
pinMode(b, OUTPUT);
pinMode(c, OUTPUT);
pinMode(d, OUTPUT);
pinMode(e, OUTPUT);
pinMode(f, OUTPUT);
pinMode(g, OUTPUT);
}

16. 16Source Code
void loop() {
digitalWrite(a, LOW);
digitalWrite(b, HIGH);
digitalWrite(c, HIGH);
digitalWrite(d, LOW);
digitalWrite(e, LOW);
digitalWrite(f, HIGH);
digitalWrite(g, HIGH);
}

17. 17Result
 After making all the connections and uploading the code to the
Arduino board we have found that the connected 7 segment display
is showing the single output digit as per the coding.
Precaution:
 All the connections should be tight and proper.
 Handle the Arduino board carefully.
 Check the connection once again before powering the Arduino
board.
 Switch off the Arduino board after performing the Experiment.