Week 5- Journal

Ideation

Tell us about your assignment's idea for this week. Why do you care about this idea? What inspired you? (Please include images or links to sources of inspiration)

This week’s assignment was to simulate and build a simple electronic device that performs two different types of actions (emits light, makes noise or sound, and/or makes movement)

I searched Google . I found many beautiful ideas and chose to make a mini prototype of a living room

Tool Chain

Which software/machines/materials did you use in the assignment? Why?

Tinkercad software:

To build, simulate & test the electrical circuit online

Electric Components:

5V Adaptor to power the circuit
Mini breadboard, jumpers & crocodile wires to connect the component
DC geared fan
buzzer
yellow LED & 320-ohm resistor for light emission

3 ON/OFF switch

Others:

Cardboard, scissors, pencil, glue (only for cardboard not the electric circuit )

Design/Preparation Process

Explain the design and/or preparation process of your assignment. How did you use the tool or software to design and/or prepare your assignment before fabrication/implementation?

Designing & simulation of the virtual circuit on Tinkercad

5V power supply, fan , LED, resistor & 3 switches
The power supply was adjusted to 5 V (because the fan requires 5 V, LED (which is connected in series to a 320ohm resistor) requires ~2V, and they were connected in parallel, so the fan will receive 5V and both the LED & the resistors will receive 5V (around 2v for the LED & the extra for the resistor according to the ohm law) also connected to buzzer in parallel that will also receive 5V , each component is connected to a switch
wires were connected from the power supply to the breadboard and between the breadboard and components (as shown in the embedded simulation)
The resistor was adjusted to 320 ohms to control the current & connected in series with the LED
The LED & motor and buzzer were connected in parallel
The on/off switch was connected in series
Then, the circuit was simulated virtually.
Upon pressing the on/off switch the circuit is closed and the yellow LED emits light and the motor rotates and buzzer produces sound

You can try it by using the following embedded simulation:)

Input component: on/off switch

Output components: yellow LED which emits light; fan that creates the movement and buzzer that produces sound .

Development/Implementation Process

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

Before tinker cad --> Planning

I drew the circuit on a paper

Building & testing the physical circuit

The breadboard, Jumpers, 1 yellow LED, 1 320-ohm resistor, fan , 3 ON/OFF switch, rosetta & the 5V and buzzer adapter were taken from the electronic kit
The circuit was built physically (exactly as it was designed on Tinkercad) using hardware components and wires
- Positive & negative wires of the rosetta were connected to the breadboard
- The on/off switch was connected in series to the breadboard using crocodile wires & M-M jumpers.
- Both fan & the LED and buzzer were connected in parallel
- the resistor was connected in series to the LED
The 5V adapter was connected to the rosetta.
The circuit was tested, and it worked successfully as shown in the video

Build the cardboard enclosure & mountain the components

A rectangular place of 5cm radius for the fan , a hole of 4cm radius for the fan switch & a 1.8 * 1 cm rectangle for the on/off switch of the led were cut in the front face
A place for the rosetta was created on the back face

2024_01_28_19_56_IMG_7546.MOV

The switch&fan & buzzer & LED were fixed in their places & the internal circuit components ( breadboard & wires) were inserted

tthen the adapter was connected to the rosetta

After opening the switch, the yellow LED emits light & the fan rotates and buzzer buzzes

Overcoming Challenges

What kinds of challenges or problems did you face while doing the assignment, tutorials, or exercises? How did you solve them? Did you ask for help from an instructor or peer? Please provide a link to the tutorial or article that you used to solve your problem (if any)

One of the challenges was how to mount & fixate the components inside the cardboard enclosure. The wires that connected the buzzer to the breadboard i wanted to be long but i needed crocidile wires and didnt have enough for the buzzer as four were already used in the led and fan so it had to be installed in the breadboard directly which wasnt what i wanted

Also, the used cardboard was very weak and easily cut (it was the only available material around me).

Also struggled a bit with avo-meter as i have a misconception about the continuity test , but i asked hala in the Q &A session on Sunday and she told me what to do

Final Project

How can you use the skills and knowledge that you've acquired this week in your final project?

it helped implement all what i learned all the impervious weeks in a big project , i actually have confidence in making my own project

WOW !

I was thinking that making RC cars is exceedingly difficult & requires a lot of effort & skills. I can't believe that we made it in 4 hours only!

makerdiploma24w.slack.com/files/U06AWHZSH2M/F06FYFCJJG2/vid_20240127_183730.mp4

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