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)
Coffee Grinder Spices
The assignment idea is to design something special with two different types of output components.
I chose Coffee Grinder Spices as a container of my circuit components.
I got inspired from an image in "Black +Decker "website
Tool Chain
Which software/machines/materials did you use in the assignment? Why?
Software app
I used the tinkercad as a simulation program that used for simulating the electric circuits.
Material I used.
Electric components which I used to build my circuit
Jumper wires
Red led
On/Off switch
Mini Breadboard
Resistor
Wires (mole-male)
DC Motor
Adapter 5V
Other Materials which I used in crafting
Cardboard
Plastic box
Glue gun
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?
Prototype the electrical circuit on a breadboard.
In this project, I used two outputs (light) in Red Led and (move) in the DC motor.
Get the power supply (5v) as the power source, I used a mini-Breadboard to be easy in hiding in the bottom of the box.
I used the on/off switch to turn in the circuit.
I chose the red led as the second output.
I used a resistor 220 Ohm for the led.
I used the red wire for the positive connection and the black wires for the negative connection.
I used series circuits as need when I push the push button all the circuits work together.
Why I use 5V adapter :
because
The voltage across the motor should be around 3-9 volts .
The voltage across LED should be about 2 Volts .
by connecting them parallel, each component will receive 5V.
The LED is attached to 220-ohm resistance so it can take the 3V that excess. I chose 220-ohm by applying ohm's law (Voltage= Current*Resistance). The recommended maximum current throw the LED is 20mA. The excess voltage that the resistance will receive is 3V so the optimum resistance is 150-ohm. Thus I chose the resistance with the nearest value which was 220-ohm.
so to avoid causing any damage to the electronics I used such voltage.
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?
First I chose two plastic boxes for my design ,as when I put them vise verse they will be suitable for my design idea .
I made two equals holes in the middle bottom side of the two boxes ,to let the Dc motor pass through I used the heat of glue gun to make the hole for the motor ,I made the hole narrow so that the motor would not fall out.
I used the glue gun to made 3 holes ( one for the switch ,the second for the red led , and the third for the power)
I prepared my mini-Breadboard and attached all the components to it.
I checked the circuit and made sure all is correct, and it was working.
I checked also the voltage and all was good.
Then I put all the circuit componand in the box from down side
Then checked that the circuit is working good after I add it inside the box.
I used the cardboard to make the sharp blade piece.
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)
I had challenge to understand the H-bridge function from the videos and I understood it in the face to face session when we did the racing car activity
The box was so tiny to add all the circuit in ,after many times of trail I finally succeeded to add it in the box.
Final Project
How can you use the skills and knowledge that you've acquired this week in your final project?
Title of Media
I can design a circuit now and prototype it with the breadboard and practicing will make it so easy to accomplish.
WOW!
What is the coolest thing that you've learned this week? What is something that you will never forget from this week?
The Coolest thing I have learned this week was the H-Bridge trick that made me able to switch the directions of the motor in an effortless way like joysticks.
Title of Media
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.
Title of Media
Fan with breadboard