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)

Design, simulate, and build a simple electronic device that performs two actions. The device may serve a need at your home, or just fun to build!

Description

- Think of an idea for a simple device that you can build. You may go through these sample project Ideas to be inspired with or to replicate: Operation toy - Buzz Wire - Coin Eater - Electrical Egg Beater - Drawing Bot
- Simulate your circuit on Tinkercad and make sure it is functional
- Build your circuit on a breadboard and test it
- Integrate your circuit within the device enclosure, you may also use other craft or scrap materials at home to demo the non-electronic parts of your device
- When you face a challenge or a problem that you can't understand, the Avometer is your FRIEND!

Technical Requirements

- The device is designed to perform 2 outputs at least at the same time (contains two different types of output components): emits light, makes noise or sound, and/or makes movement.
- The output components are optimally connected (in parallel NOT in series)
- The electrical circuit is simulated using TinkerCad
- The electrical circuit is prototyped on a breadboard
- The device has an enclosure from cardboard and the non-electric parts are prototyped from cardboard or any scrap material (You are not required to use any CAD or digital fabrication)
- The device contains a power ON/Off switch
- The voltage source's voltage value is clearly defined and justified with consideration of the used output components
- The device is functional and the final outcome is demonstrated

Inspiration Video of Foam Boat with DC Motor

InspirationI Video

I got inspired by the video shown and I decided to have some fun. My idea was to make a boat made of foam with a DC motor to control the direction of the boat in both ways (Forwards and Backward ) through the quadrable flanges. It will have a physical remote control with 4 switches (on/off) to represent the H-BRIDGE Connection and a LED connected in parrallel. The LED will turn Red once the boat is moving forward or backward.

link: https://www.youtube.com/watch?v=W41ukV2V74o

Final simplified output of a Dc Motor Boat

The final output of DC Motor Boat

The body is a conceptual model made of foam (1 cm thickness). Carved in the center to let the rotational free movement of the motor flanges and move the boat in both directions ( forward and backward). The is a physical remote control with a Red LED output to indicate that the user has pushed the buttons and acts as an indication of the boat movement.

Tool Chain

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

I used Tinker Cad to simulate the circuit design of the LED and Dc motor parallel connection in H bridge connection to control the movement of the boat

DC MOTOR to rotate the flanges and cause movement

The breadBoard to organize the H-bridge wires connection

Jumpers are the wires type used for connections

220 ohm Resistors are used to protect the LED from any excessive voltage

Red LED is used for indication of movement done by the boat

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?

Autodesk TinkerCad : Screenshot of the H-BRIDGE connection of the DC motor and LED in parallel controlled by 4 switches to allow the exchange in polarity direction and moves the boat backward and forward direction

tinker cad and wires connection.mp4

The Real connection shows the change in polarity direction of the DC MOTOR and the boat moves backward and forward direction with a LED lighten to indicate movement

The Tinker Cad Simulation

First :

The H-BRIDGE connection of the DC motor and LED in parallel is controlled by 4 switches to allow the exchange in polarity direction and move the boat backward and forward direction

power supply 5v (the minimum power needed to power the DC motor and at the same time it will not cause any harm to the LED when it is lighten while i use 220 ohm resistance to distribute the rest of the voltage)
The power supply Anode is connected to the 1st switch and Cathode to4th switch
both switches (1 and 3), (2 and 4) were connected
The LED is connected (the tallest pin is connected to the positive polarity and the short one is connected to the negative polarity) with a 220ohm resistor to protect the LED from burning up as it consumes only 2 V while the circuit has 5 V so the Ohm can withstand with the rest of the volts in the circuit.
The motor is connected in parallel connection to the LED. The positive is connected to the Anode and the negative to the Cathode.

Assignment 5 - 480.mp4

The video is showing the simulation on Tinkercad when diagonal buttons are pressed and the current readings increased with Rpm values shown on the DC Motor which indicates the movement of the DC MOTOR.

Body of the boat

Second : The Body

Its size is 25x25 cm and the curvature is a freeform spline in symmetric

A Foam of 1 cm thickness was used as the body of the boat to be cut easily and it could float on the water.
The Dc Motor was engraved in the body of the model and fixed using avis.
The flanges is a plastic bottle lid connected to the motor with a stick and the flanges were the plastic cover of recycled transparent bottle stacked together
The wheel is a decorative element made of cardboard and sticked with AMIR glue to let it harden and not to absorb any water.

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?

Implementation

The process :

I push switch 1 and 3 and the boat moves forward while 2 and 4 let the boat moves backward. Which acts as a controller to the DC Motor direction based on the change of polarity in the H- BRIDGE.

The Red LED is linked to the breadboard and to the motor in a parallel connection where it lights up when the dc motor is rotating the flanges and the boat is moving.

video-2bfca4b0-deca-4f1d-a12f-23dd8cc0ec45-1661576784.mp4

Test of the movement

video-3b1085eb-a9fd-4b88-984d-39f82158600d-1661576852.mp4

Test of the LED lighten

The Led and the physical tactile switches

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)

1) The motor was heavy and not in the center of mass so I thickened the foam in the direction of the heavy motor.

2) I connected the Led wrong at first to be directly connected to the battery. It didn't work because the circuit was open and it made a short circuit or just led to passing the dc motor without any voltage. So i used avometer to indicate where is the problem then i recognised that the DC motor has no voltage supply because the direction of the connection was open circuit and series not parallel so i managed to rearrange the wires and checked again with avometer and it worked (I checked again because i was afraid of the short circuit to damage the dc before power it on ).

Ideas to make other approaches and moving mechanism for boats

Final Project

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

1) I have learnt how to design the parallel and series connection with multiple outputs.

2) I learnt how to make the H BRIDGE Connection and the LED and to control the DC motors

3) I learnt how overcome challenges through trials and errors and resolve the issue with some faith that i can do it.

WOW!

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

I have learned the differences between series and parallel connections and how this would affect the current intensity for each output.

Manipulation of objects that could be connected to dc motors which will form a linear motion only.

I am eager to try two DC MOTORS to increase the speed of the movement, a larger fan should be used to protect the motor from being not efficient.

Assignment Design Files

Boat TinkerCad Circuits

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