Week 8 - Journal

Ideation

Tell us about your assignment's idea for this week. Why do you care about this idea? What were you inspired by?

I modified the last week assignment to have a servo motor that being controlled by a knob and an LDR that will be give

Tool Chain

Which software/machines/materials did you use this week? Why?

IDE and its Serial Monitor

I used it to code the Arduino

For designing process, I used Fusion 360

Processing

I used it to make the graphic interface.

Fritzing

I used it to design the circuit and schematic

I used these Physical components:

1 Servo motor

1 Potentiometer

1 LDR sensor

Jumpers

1 Arduino Uno

1 Breadboard

Design Process

Explain the design process of your assignment. How did you use the tool/software to design and/or simulate your assignment?

Since this is similar to what I have done last week, I just remove the RGB LED and change the code a little bit so the potentiometer is controlling the servo and we are going to just show the readings from the LDR Sensor.

I used Fritzing to draw the circuit and the schematic, to make sure everything is fine. and when I tried to control the servo from the serial monitor and the GUI, I removed the potentiometer from the circuit.

The simulation

The schematic

This is the code without the serial monitor.

and then I rewrite the code to be controlled by the serial monitor instead of the knob, so the user is going to enter a number from 1 to 9 which will be mapping in the code to the angle value between 0 and 180 and the serial monitor will show the value of the light intensity from the LDR sensor.

Arduino Code

part 1

part 2

part 3

and then I wrote the processing code to make a GUI to shows the intensity of the light and allows the user to turn a knob to control the angle of the servo motor from 0 to 180 degree.

processing code

part 1

part 2

part 3

Fabrication/Implementation Process

Explain the fabrication/implementation process of your assignment. How did you use the machine/tool to manufacture or implement the design of your assignment?

so I connect the circuit the exact way that I did last week. and then started to test it.

controlling the servo via the potentiometer

this video shows the servo motor while being controlled by a potentiometer.

the Servo motor being controlled by the serial monitor

This video shows the servo motor while being controlled by the serial monitor.

the Servo motor being controlled by the GUI

This video shows the servo motor while being controlled by GUI.

Overcoming Challenges

When you got stuck, what/who did you turn to? At what point did you have to pause to research or learn more before moving on? What are some mistakes, pitfalls, or challenges that others can avoid if they were doing this project?

at first, I tried to control the servo motor via the serial monitor by myself, but I faced some issues and the n I searched and I found this useful article.

Assignment Design Files

Arduino code [ino]

Processing code [pde]

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