II3231 - Interaksi Komputer dengan Manusia - Project 2

Arduino Project 2 - Calculator

My team consists of four people. This time, the project is about prototyping a calculator using keypad and LCD. The Arduino that used is Arduino Uno. This project began on Feb 23 and ended on Feb 23 (only one day). During project development, as usual, we have some obstacles. The processes will be shown below.

Jessica, Eveline, Alicia, and Asta (from left to right)

Team members

We were testing the keypad first, then the LCD.

Picture 1. Gathering the equipments

We succeeded testing the keypad in one go! yeay!

Picture 2. Testing the keypad

At first, the LCD won't show any letter, but after working hard for about 30 minutes, we succeed to make the LCD showing the word 'hello world!' and counting the time. We were using the LCD that has been joined with potentiometer and shield.

Picture 3. LCD won't work for half an hour

Picture 4. Success in making the LCD work

After that, we tried to combine the LCD and keypad. At first, the result that shown to LCD while the keypad was pressed is wrong. Something's wrong about the circuit. Then we tried to figure it out and succeed.

Picture 5. The display shown was still wrong

Picture 6. We can do it!

After taking a break, we start to code the calculator program and upload it to the arduino, and we tried and tried untill we succeed.

Picture 7. We mark the keypad according to the function we coded

Picture 8. We succeed!

Also, we tested the calculations with different numbers.

Picture 9. We're done!

The testing video will be shown below.

Testing Video

The code link will be told in the description of the testing video. That's it, we're done. Thank you and have a good day guys :)

II3231 - Interaksi Komputer dengan Manusia - Project 1

Arduino Project 1 - Display the Distance

My team consists of four people. This time, the project is about displaying distance that has been measured by ultrasonic sensor into 3 one-digit seven segments. The Arduino that used is Arduino Uno. This project began on Feb 9 and ended on Feb 10. During project development, we have some obstacles. The processes will be shown below.

Jessica, Eveline, Asta, and Alicia (from left to right)

Team members

We were trying to find the right jumper to connect with the segments here.

 Picture 1. Touching Arduino again after 1 year

Picture 2. Arduino installed for the project

After we labelled the jumper, we tried to connect 7 jumpers with each segment of the first seven segment. Then, after we found out, we tried to connect 2 seven segments together. As the result, we had both seven-segment having the same number that light up together.

Picture 3. Testing 1 one-digit seven segments

Picture 4. Testing to connect 2 one-digit seven segments

After trying for hours, we've finally succeed having two different numbers on the seven segments. But, the problem is we can't get the two numbers that light up at the same time. So we decide to blink them with same amount of delay for each.

Picture 5.  2 seven segments showing different numbers

On Feb 10, we succeed in having distance measured using ultrasonic sensor. Then, we tried to tidy up the assembled breadboard and tested them.

Picture 6. Measuring Distance

Picture 7. Tidy Up

Picture 8. Starting point

Picture 9. Testing measuring

The testing video will be shown below.

Testing Video