Final Project Journal

Project Ideation

1- Tell us about the idea of your project. Why do you care about this? What were you inspired by? Include images and videos of similar projects

i was inspired of commercial product called switchbot , it helps you to push a lot of buttons far away wirelessly thru bluetooth or wifi thru your mobile phone

you can stick it to a lot of devices by double sided tape

Project Construction

2- Explain the CAD process of your project. How did you use the software to design your project? (List the softwares/tools/materials...etc that you used)

fusion 360 for 3d modeling

cura for slicing

i started by building the box of the project , by drawing a sketch and draw rectangle 43 mm x 63 mm then extrude it 43 mm then shell 1.5 mm , then i made an open in front of the box to let the switch move to push the buttons

and about the box cover i made some sketches and extrude from the box open space and i made three legs to hold it in place

i did only three because of the bluetooth module place

then i downloaded my internal components from grabcad.com then i draw on the box bottom sketch the component's holders to keep them in thier places

i drew the switch that will push the buttons to attach it to the servo , and the extra part that i can attache a string to it to let the switch to pull back the button to turn it off

then i made an open for the arduino nano adapter to attach the power cable easily by project the adapter sketch into the box side then extrude cut

then i started to export the stl files to 3d print it

Importing the stl files into cura to 3d printing

i imported all the stl files into cura

i adjust my print setting as shown

res : 0.3

infill 30%

with support and adhesion then i sliced it

after cura slicing that was my printing duration

then i export my gcode file to print it

3- Explain the fabrication process of your project. How did you use the machine to fabricate your project? (List the softwares/tools/materials...etc that you used)

i used prusa mk3 to print my file

the material that i used is black pla

i cleaned the plate then i print my file

after printing i started to remove the adhesion and supports

after removing the adhesion and supports

Project Electronics & Power Management

4- Describe your electronic circuit. What are the input and action components? What is the function of each? How do the components integrate together to form your smart system? (List the softwares/tools/components...etc that you used)

my project components

micro servo motor

arduino nano

bluetooth module hc-05

jumpers

i used Fritzing software to simulate my circuit wires as shown below

Servo Motor :

Orange to Arduino pin d6 as output

Red to Arduino 5v

Black to Arduino Ground

Bluetooth Module HC-05 :

RX to Arduino Nano TX

TX to Arduino RX

GND to Arduino GND

VCC to Arduino 5v

my input will be the mobile app arduino control app
i'll use it to communicate with arduino to do some his orders

5- What is your power source? How did you select the suitable power source for your project? (List the softwares/tools/components...etc that you used)

i needed 5v to run my project components well
so i used external powerbank to power my project , as there's no available internal batteries in the market at this time

Project Programming

6- Describe the code of your project. How did you program each function of the project?

i used arduino ide to write my code

i used arduino control app to send data to arduino

each button on the app will send its number to arduino to start make some orders

i started my including the servo library

then i added variable ( data type ) char and called it incoming data and it's value is zero

named the servo motor : myservo

in void setup

a attached my servo to pin 6

and ordered the servo to be in 0 angle

in void loop

i used while loop and ordered the servo to move on specific angles if serial read specific number

so if i sent 1 , servo will rotate to 110 degree angle and stay

and if i sent 2 , servo will rotate -110 and stay

and if i sent 3 it will rotate to 120 degree and wait 250 millisec then go back to 0

and if i sent 5 it will make the multi press move then go back to 0

Project Integration & Testing

7- Demonstrate with text and visuals how did you integrate the project’s modules together? What are the testing results? (Include a Demo video separately, showing a proof of functionality)

i made a prototype for my project with pvc pipes , i cut it and melted it with heat then cut it in sizes to make a similar box to my project

after glowing the box parts and building my circuit i tested everything and worked good

Sharing & Collaboration

8- 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?

actually i helped a lot of my team on their products , in some sanding and assemble and disassemble some parts and screws of their projects

Overcoming Challenges

9- 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?

of course i was asking my instractors amany and ibrahim and ahmed before in every obstacle i face and they were always help me in how to solve or even how to think to get the best solution

here while trying to attach my servo into the box one of the wires has broken and the servo stopped working

so i opened the servo and fix it myself , and it worked again

first 3d printing was not successful because of wrong grabcad dimension and i needed some clearances on the cover part

so i edit it and print it again

i made a small edit to the moving switch part by putting the servo horn in it to use its internal gear to attach the switch to the servo

because the printed part was slippery and not fixed perfectly

i needed short jumpers so i did it myself in the maker space

Future Work

10- If you had more time, what is one thing you would change/ Do next in your project?

i'll print my other mechanism of i switch
the rack and pinion one , that i already draw it and model it on fuison 360

Final Project Design Files

3d printing file - gcode

cura slicing file (3mf)

fusion 360 file [f3z]

arduino ide code

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