Week 4 - 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)

In this week, Create electrical circuits containing single and multiple components adequately powered and functional.

And using Tinkercad to simulate electrical circuits.

Use the Avometer to troubleshoot problems in electrical circuits by performing voltage measurement and continuity test.

The idea of my assignment is welcoming effect when the entrance door in opened by making light and sound like welcoming music.

I inspired my idea from this video (First 10 seconds)

Tool Chain

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

Tinkercad Software.
Use Avometer to troubleshoot problems.
Using electrical circuits components.

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?

1- Power an RGB LED so that it lights up with a Purple Color

1- I used RGB Led and constant resistance to make sure the LED not damage and used variable resistances to control in the amount of each color on our LED.

RGB LED.mp4

2- Connect the constant resistance 220 ohm with each color and thin connect each one with the variable resistance and connect the cathode of the LED to the negative on the power.

3- This video shows how can control on the LED color by changing the amount of variable resistance.

2- Power a "7-segment display", so that it shows the number Seven "7"

1- The concept of the 7-segment is a number of LEDs we can get the number what we want by control the LED by on or off it.

3-I used on/off switch to get variables numbers from 7-segment display and made number 1 (B and C LEDs) as a base cannot be off

2- To show the number 7 we connect A, B and c LEDs to a constant resistance 220 ohm and connect it to the power.

7-Segment.mp4

4- That video show that.

3- Build an electric circuit that enable you to control the direction of rotation of a Geared Yellow DC motor using Push Buttons "H-bridge" Circuit

The concept of H-bridge circuit is connect the power of the circuit to the motor in 2 ways by making the current move in the motor from positive to negative once and from negative to positive once by using 4 switches.

1- The direction of the current to make the motor's shaft rotate Clockwise.

3- The Push Buttons to make the motor's shaft rotate Clockwise

2- The direction of the current to make the motor's shaft rotate Counter Clockwise .

4- The Push Buttons to make the motor's shaft rotate Counter Clockwise.

4- Build an electric circuit that enable you to control the direction of rotation of a Two Geared Yellow DC motor using Push Buttons (With Salma Sherif)

Same of the previous connection but attach 2 motors in same switch.

The Push Buttons to make the two motors' shaft rotate Clockwise.

The Push Buttons to make the two motors' shaft rotate Counter Clockwise.

5- HACKATHON RC car BYR"Square" team (With Ramie, Yomna and Bassant)

Using Fusion 360 to make the base model and used array to create the holes which help to stabilize the circuit components on the base.

Export it dxf file.

6- The Assignment (Welcoming door)

2 outputs (LEDs and Buzzer)
I used power source 5 volts because I used buzzer and I want the sound not bs so loud and I used LEDs and resistors because the LED need only 2 volt.
The output components are optimally connected in parallel because if the buzzer is damage the circuit is still on and the same if the LED damage.
The device contains a power ON/Off switch.

1- Power source 5 volt 2- Breadboard 3- On/Off switch

4- Buzzer 5- Resistance 220ohm 6- LED

Thin connect the buzzer series with the Switch.

I used LEDs and constant resistance to make sure the LEDs not damage, and connect in parallel with it a buzzer.

I used ON/Off switch in this circuit and connect it direct with the power source so when it on the current flow in all component but when it off the current never get in the circuit.

Connect the switch to the power source

Thin connect the LED series with the Switch and parallels with buzzer.

This photo shows the current flow and all connections in my assignment.

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?

1- Power an RGB LED so that it lights up with a Purple Color (circuit)

Control on the amount of Red color and Blue color throw the variable resistor.

I used RGB LED, breadboard , variable resistor, constant resistance, Power source 5 volt, crocodiles and jumpers.

RGB LED circuit.mp4

2- Power a "7-segment display", so that it shows the number Seven "7" (circuit)

I used 7-segment display, breadboard , constant resistance, Power source 5 volt and jumpers.

3- Build an electric circuit that enable you to control the direction of rotation of a Geared Yellow DC motor using Push Buttons (circuit)

I used Geared Yellow DC motor, breadboard , 4 Push Buttons, Power source 5 volt and jumpers.

direction of rotation 2.mp4

direction of rotation 1.mp4

4- Build an electric circuit that enable you to control the direction of rotation of a Two Geared Yellow DC motor using Push Buttons (With Salma Sherif)

I used 2 Geared Yellow DC motor, breadboard , 4 Push Buttons, Power source 5 volt and jumpers.

I used cardboard to make the model by using cutter and Glue gun.

2 motors.mp4

5- HACKATHON RC car BYR"Square" team (With Ramie, Yomna and Bassant)

To make the base used laser cut machine
Used breadboard, l298n motor driver, 4 Push Buttons, Power source 7.5 volt and jumpers to make the circuit.
Used caster wheel and 2 car wheels.

Leasercutting.mp4

RC Car.mp4

6- The Assignment (Welcoming door)

I used cardboard to make the model.
To make the circuit I used LEDs, breadboard , Buzzer, constant resistance, Power source 5 volt and jumpers.
I used power source 5 volts because I used buzzer and I want the sound not bs so loud and I used LEDs and resistors because the LED need only 2 volt.
The output components are optimally connected in parallel because if the buzzer is damage the circuit is still on and the same if the LED damage.

assignment connection concept.mp4

The concept is when the door is opened the 2 jumpers is connected to the circuit will be closed.

Put the breadboard in the top and attach one of the jumpers on the door and the another one in the ground.

welcoming door.mp4

When the door is opened the 2 jumpers touches each other then the LEDs and the buzzer is on.

I used the power source 5 volt and connect it to a breadboard then connect with it the switch. Then make a parallel connection to the LED and to the buzzer, and then all wires connect with each other again in the negative of the power source.

That what I made here.

Community of Learning

Did you ask for feedback? What are the ideas that others have contributed or suggested? What was someone else’s idea that you built upon? How did you help your peers? How did your peers help you?

In partnership with Salma Sherif we made a RC car with cardboard design in EOweek session.

It's so good to work with her she is very friendly and she is very good when using cutter tool.

2. In partnership with Ramie, yomna and bassant we made RC car with laser cut design in HACKATHON.

Ramie add the holes idea so we finished our design quickly and it was a great idea so we can put the components easily without errors.

Yomna helped us in the circuit she has a background in physics.

Bassant is a good researcher.

I learned from this team to do a quick search before starting, make the design to help our needs and connect the circuit in a optimum connection.

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 assignment?

In the RGB circuit I attach one constant resistors to the cathode of the LED it wasn't the optimum connection.

The optimum connection is connect constant resistor in each color by series connection with the positive of the power source.

2. In the EOweek session in task i used too much wires in the connection that made the connection is very complex and so hard to check it or change any thing.

The solution is arrange the wires to be more arranged and easy to read it.

can weld the same connections like LEDs to make it as a one LED so the numbers of wires will decrease.

Final Project

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

In this week I know the circuits connection and know that the parallel is better than series so in my final project I will use parallel connection.
I know how I can convert the voltage from high amount to low amount by using Voltage Regulation that will help me to connect more than one device with different voltages.

WOW!

What is the coolest thing that you've learned this week? What is something that you will never forget from this week?

I learned to do RC car in the first time and did it using cardboard.

Weekly Digest [OPTIONAL]

Tell us about any other cool things that you've made this week: in the Hands-on activity, tutorial examples, exercises, or any other cool mini-project that you tried out aside from the assignment.

The coolest thing in this week is the Hackathon and the competition on it.

hackathon comp..mp4

Assignment Design Files

Assignment file

Motor routation

Different circuits

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