week 6

Ideation

The idea came from the final project, where there is a Proximity sensor that detects user presence or movement to activate the timer and a screen displaying the time. but i use 7-segment display the time

Tool Chain

Software:

Tinkercad

I used Thinkercad to simulate my electronic circuit and wrote my code using the website. This week, using code blocks in TinkerCAD was a technical requirement, so I did just that.

Arduino IDE

I used Arduino IDE to upload my code to my Arduino .

The Material

The Components I used

breadboard
resistors 330 Ohm
Input Component:
wires

Arduino Uno

Arduino Uno is a small programmable board that reads inputs and controls outputs based on uploaded code.

7-Segment(Common Cathode)

Output Components

Displays numbers based on signals from the Arduino.

ultrasonic sensor

Input Components

- Measures distance by sending and receiving ultrasonic waves.
- Sends an electrical signal to the Arduino based on the detected distance.

breadboard

helps organize connections without soldering.

jumper Wires

Connect components to the Arduino Uno and breadboard.

allowing signals to transfer.

Resistors (330 Ohm)

Limit current to protect the 7-segment display LEDs.

Ensure proper brightness and prevent damage.

Design/Preparation Process

First, in Tinkercad,

I take the components and start to connect them.

connect every segment by resistance,

and then connect every resistance by wire to the pin in the Arduino

and then create the code blocks

The program measures the distance using an ultrasonic sensor.
If the distance is less than 60 cm, turn on the 7 segment and It counts from 9 to 1.
each pattern lasts 1 second before switching to the next.

Pattern 1:

LEDs ON → Pins 2, 3, 4, 5, 6, 7 (HIGH)
LED OFF → Pin 8 (LOW)
Wait for 1 second

Pattern 2:

All LEDs ON → Pins 2, 3, 4, 5, 6, 7, 8 (HIGH)
Wait for 1 second

Pattern 3:

LEDs ON → Pins 2, 3, 6 (HIGH)
LEDs OFF → Pins 4, 5, 7, 8 (LOW)
Wait for 1 second

Pattern 4:

LEDs ON → Pins 3, 4, 5, 6, 7, 8 (HIGH)
LED OFF → Pin 2 (LOW)
Wait for 1 second

Pattern 5:

LEDs ON → Pins 3, 4, 5, 6, 7 (HIGH)
LED OFF → Pins 2, 8 (LOW)
Wait for 1 second

Pattern 6:

LEDs ON → Pins 2, 4, 5, 6 (HIGH)
LEDs OFF → Pins 3, 7, 8 (LOW)
Wait for 1 second

Pattern 7:

LEDs ON → Pins 2, 3, 5, 6, 7 (HIGH)
LED OFF → Pins 4, 8 (LOW)
Wait for 1 second

Pattern 8:

LEDs ON → Pins 2, 3, 5, 7, 8 (HIGH)
LED OFF → Pins 4, 6 (LOW)
Wait for 1 second

Pattern 9:

LEDs ON → Pin 6, 2 (HIGH)
LEDs OFF → Pins 3, 4, 5, 7, 8 (LOW)
Wait for 1 second

Screen Recording 2025-02-03 124306.mp4

Tinkercad project link

Development/Implementation Process

I connect the components and then connect the Arduino to the laptopand then upload the code to Arduino

components are connected and work

VID_20250203_131346.mp4

the video

Arduino code ino file

Overcoming Challenges:

Obstacles to potential difficulties: Switch wire that comes from segments that are connected to Arduino pins.

Solution: Review the connections I put in the circuit to work well.

when connecting the Arduino to the laptop, did not select the right board and port so the code did not upload to Arduino

Solution: Determine the port and board before uploading the code to Arduino

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