Engineering concepts

Tools

When I first started taking engineering concepts , we were learning virtually due to Covid-19. My teacher gave me this kit of materials to use for our first project. When i laid the materials out i was missing the DSD. Our first assignment was to make sure we had everything we were supposed to have in our kit. This is a picture of what was in my kit.

Project Brief

Today we learned that our project will be about automation. We are going to design a rolling robot.

Project Plan

Above is how we will progress through the project. We will use what we learn in this rolling robot project in our next project too.

What is the purpose of a circuit diagram?

Circuit diagrams are used for the design, construction, and maintenance of electrical and electronic equipment.

We also learned how to create circuit pictures. Circuit pictures are also a great way to convey how a circuit is created. The battery connects to the LED for it to light up.

What is the purpose of a circuit picture?

A circuit picture shows the actual electrical connections.

Servo bases robot 1

This resource is a set of instructions on how to create a servo based robot. This shows the step by step on how to make the servo based robot.

Servo based robot 2

The aurdino are in the middle, there are 2 wheels, it has a sensor in the front. This is not going to be my design but i think examples are important.

Servo based robot 2

This resource has a step by step tutorial. The sensor is in the front. This robot is WiFi controlled. The breadboard is on the back and the material is like a foam type material. There is a total of 4 tires.

Two servo sweep documentation.

Circuit Picture

This is my circuit picture it represents what the Arduino wiring looks like.

My Circuit Diagram

The diagram I made in the circuit diagram editor website. The two circles with the m inside represent the motors. The large rectangle with the letters and numbers demonstrates the arduino.

20200916_151003.mp4

Video of my two servos working independently

This is a video of my robot's wheels moving. I couldn't show my servos because my camera wasn't working at the time.

Code

#include <Servo.h> // you will only need this line once, and it refers to a library that controls servos

Servo myservo;

Servo myservo2;// just defines a device called servo that is controled by the servo library

void setup()// this is where you set things up (only occurss once)

{

myservo.attach(9);

myservo2.attach(10); // my servo is controlled by pin 9

}

void loop() { // anything within void loop happens indefinitely

myservo.write(0); // turn my servo clockwise at full speed

delay(2000); //for two seconds

myservo2.write(180); // turn my servo counterclockwise at full speed

delay(2000); //for two seconds

myservo.write(0);

myservo2.write(0);

delay (200);

myservo.write(180);

delay (200);

myservo2.write(180);

}

20200916_151003.mp4

Moving Prototype

This is my moving robot. It moves forward, and backwards.

20200926_152103.mp4

Coarse Plan

My coarse plan is I am coding it to go around my kitchen and go back to the position it started in.

Circuit Diagram with battery packs

This is the circuit diagram with the battery packs on them.

Pseudo Code

Forward

Short amount of time

Right

Short amount of time for a 90 degree turn

Forward

Long amount of time

Right

Short amount of time for a 90 degree turn

Forward

Short amount of time

Ultrasonic sensor circuit diagram

This is a circuit diagram demonstrating the wiring of a ultra sonic sound sensor and a arduino.

https://randomnerdtutorials.com/complete-guide-for-ultrasonic-sensor-hc-sr04/

Ultrasonic sensor diagram

https://www.theengineeringprojects.com/2018/10/introduction-to-hc-sr04-ultrasonic-sensor.html

Ultrasonic sensor data base

This is a data sheet that shoes how everything works with the sensor.

https://randomnerdtutorials.com/complete-guide-for-ultrasonic-sensor-hc-sr04/

Labeled wires

In class we were told to label our wires, so when we build the final product it would be easier to put the wires where they go.

Ultrasonic sensor circuit diagram

https://randomnerdtutorials.com/complete-guide-for-ultrasonic-sensor-hc-sr04/

Ultrasonic sensor data base

https://randomnerdtutorials.com/complete-guide-for-ultrasonic-sensor-hc-sr04/

Robot Test

During today's class my teacher wanted to check my understanding of the code. She gave each student in my class an individual "pseudo code". To complete the test we had to code our robot with the proper code that matches the commands our teacher gave us. If we are having trouble with our robots we can do the code, without a video of our robot performing the code and we can still get 90%. My individual pseudo code is

Forward for five seconds.

Left tank turn 180 degrees

Forward 3 seconds

Right turn (standard turn 90 degrees)

Forward 6 seconds

Robot code

#include <Servo.h>

Servo myservoR;

Servo myservoL;

void setup()

{

myservoR.attach(9);

myservoL.attach(10);

}

void loop() {

myservoR.write(180);

myservoL.write(0);

delay(7000); // forward

myservoR.write(90);

myservoL.write(90);

delay(3000); //stop

myservoR.write(180);

myservoL.write(180);

delay(2000);// right

myservoR.write(90);

myservoL.write(90);

delay(3000);// stop

}

Working Ultrasonic Sensor.

Circuit picture

This is the circuit picture I used to connect and wire my sensor. On the sensor there are two pins labeled "Trig" and "Echo". Those twin are suppose to be connected to a pin number. The other two pins on the sensor labeled "Vcc' and "GND" are suppose to connect to power pins on the Arduino. "GND" on the sensor should be wired to "GND" on the Arduino. "Vcc" on the sensor should be wired to "5V" on the Arduino.

Video:

20201028_201348.mp4

Function/ How it works

Ultra sonic sensors put out sound waves, too loud for the human ear and that sound waves bounces off an object and back to the sensor. Therefore calculating the distance based on time.

Function/ Pseudo code

Function: A function is a named command that executes a defined set of code.

Real life function:

Pick up toothbrush
Put water on toothbrush
Then you put toothpaste on toothbrush
Then you wet toothbrush again
Then you proceed to brush teeth singing a 4 minute song
You rinse your mouth out
And brush again.

Code:

#include <Servo.h>Servo myservoL;Servo myservoR;
void setup(){ myservoL.attach(9); myservoR.attach(10); }void Left(){myservoR.write(90);myservoL.write(0);}
void Right(){myservoR.write(0);myservoL.write(90);}
void Forward(){myservoR.write(0);myservoL.write(180);}
void Back(){myservoR.write(180);myservoL.write(0);}

Asynchronous Day

Today was an Asynchronous day, our teacher assigned us to move our breadboard to the front of the robot as you can see in the picture thats what I did.

If/Else

Today in class we were asked to do an if/else statement. An if/else statement is when something triggers something to happen and a function is when you have a set of code or things to do that lead up to it

Robot Moving Autonomously

20201120_091120.mp4

This video is supposed to show my robot moving autonomously but my batteries wee dead and I couldn't find new ones so I had to leave my robot connected to the computer.

My code used for the video.

#include <Servo.h>

Servo myservoR;

Servo myservoL;

// defines pins numbers

const int trigPin = 12;

const int echoPin = 11;

// defines variables

long duration;

int distance;

void setup() {

pinMode(trigPin, OUTPUT); // Sets the trigPin as an Output

pinMode(echoPin, INPUT); // Sets the echoPin as an Input

Serial.begin(9600); // Starts the serial communication

myservoL.attach(9);

myservoR.attach(10);

}

void Lefttank(){

myservoR.write(0);

myservoL.write(0);

}

void Righttank(){

myservoR.write(180);

myservoL.write(180);

}

void Left(){

myservoR.write(90);

myservoL.write(0);

}

void Right(){

myservoR.write(0);

myservoL.write(90);

}

void Forward(){

myservoR.write(0);

myservoL.write(180);

}

void Back(){

myservoR.write(180);

myservoL.write(0);

}

void loop() {

// Clears the trigPin

digitalWrite(trigPin, LOW);

delayMicroseconds(2);

// Sets the trigPin on HIGH state for 10 micro seconds

digitalWrite(trigPin, HIGH);

delayMicroseconds(10);

digitalWrite(trigPin, LOW);

// Reads the echoPin, returns the sound wave travel time in microseconds

duration = pulseIn(echoPin, HIGH);

// Calculating the distance

distance= duration*0.034/2;

// Prints the distance on the Serial Monitor

Serial.print("Distance: ");

Serial.println(distance);

Forward();

delay(2000);

Back();

delay(2000);

Righttank();

delay(2000);

Right();

delay(2000);

Lefttank();

delay(2000);

Left();

delay(2000);

}

Bluetooth Module Research

Picture of Bluetooth Module

Circuit Diagram

Description of circuit diagram:

https://create.arduino.cc/projecthub/m_karim02/arduino-and-hc-05-bluetooth-module-tutorial-9f15ed

The Arduino Bluetooth module receives data and sends it to the Arduino through a pin. The code uploaded to the Arduino checks the data that was received from the module.

Create technical documentation of your fully autonomous robot.

This is the circuit diagram of my fully autonomous robot that shows my ultrasonic sensor connected to my Arduino Uno. The wires are different colors to show the different wires connected from the Arduino Uno to the Ultrasonic sensor.

Project Brief

December first we started the design process for our robot.

WC1000-DM4-E All Terrain Enclosed Robot Platform

The wires are in in the T shaped box. If I use this design I would put latches on the top T so I can access all the wires.

Configurable - IG52-DB4-E, 4WD All Terrain Heavy Duty Enclosed Robot Platform

The wires are in the farmhouse shaped box. If I use this design I would put a latch on on side of the farmhouse top part.

4 Wheels Scout Platform Robot Kit

The wires for this robot are sandwiched between the two black pieces. If I use this design I would put a door on the top with a match so I can access all the wires

Drawing of Design

This is the front and side drawing of my design.

Shell

This the shell of the new design of my robot. It's very similar to the sketch I made in my former entry.

Code for your final functioning robot

#include <Servo.h>

Servo myservoR;

Servo myservoL;

void setup()

{

myservoR.attach(9);

myservoL.attach(10);

}

void loop() {

myservoR.write(180);

myservoL.write(0);

delay(7000); // forward

myservoR.write(90);

myservoL.write(90);

delay(3000); //stop

myservoR.write(180);

myservoL.write(180);

delay(2000);// right

myservoR.write(90);

myservoL.write(90);

delay(3000);// stop

}

Final Circuit Diagram

video_160803017.mp4

Evaluation & Testing

This part was extremely hard it took me four time to get the wheels to turn. I had to get my dad to help me.

Final Design.

This is our new project brief. This project is about mechanical motions and power. Our project learning goals and project constraints are presented above.

20210112_012040.mp4

How do we convert rotational motion to linear motion?

First I want to say I couldn't do a voice over but my descriptive caption should sum it up for you. There are two pencils that I used, the one that is horizontal has the rotational component and the one that is vertical has the linear component. I put an oval shape on the horizontal pencil and added curved L's on the opposite sides so when I twisted the pencil it would lift up the vertical pencil. For the vertical pencil I used two slabs of of card bored hot glued them together and I cut a hole right in the center and hot glued the pencil in the hole. Once that was done I twisted the horizontal piece and it went up and down. My creative piece was the smiley face with the hands.

S2 Week 3 Inkscape Skills Practice 1

This is the face I drew. The tools I used were

Draw freehand lines
Paint bucket

I used my finger to draw each shape. I included each feature and added eyelashes.

Our first practice gear

My first gear

Dancing Digits

This automata is very interesting and I like it a lot. From first glance I thought the acrylic portion had a smoke effect like at a party with the lights, but I think it was just dull. The Tricams and the rectangle shapes going up and down really worked together. The Tricams pushed the rectangles up and down. The driveshafts spin the Tricams around. The digits are moved up and down by a Tricam.

Ms. White's kinetic sculpture

This sculpture has the following:

Drive shaft

Drive gear

Layers

Opening directions

Ms. White's Kinetic Sculpture

This sculpture had a hand crank. Ms. White spun the crank around and the wheels would turn. The wheels were going in an opposite direction and that was caused by spacers. Her design was very cool although I liked the first design better.

20210217_182307.mp4

Getting to know my gears

This is a video of my gears I'm showing how two of the gears move in the same direction.

20210217_184918.mp4

Getting to know my cam

In this video, I will show you how my cam works and how I made a linear function using cardboard and wooden gears. A linear function is pushing an object up or down with the use of the cam.

20210226_112429.mp4

S2 Week 6 Building your project plan with a cardboard housing.

< In this video I explain the direction of my gears and what I'll be adding.

Week 10

This is my final gearbox design.

20210507_094330.mp4

Week 14: Get your ultrasonic sensor to control your motor

I skipped the ultrasonic sensor and motor individual assignments because I was behind. This is my ultrasonic sensor controlling my motor.

20210519_002425.mp4

Final Gearbox

S

The science aspect relates to circuits and the way the Arduino connects to the ultrasonic sensor and motor. This could also relate to technology.

T

Technology was a part apart of this project because of these things listed below: we used Inkscape (demonstrated in the picture above), hot glue, and the laser cutter. We used Inkscape to make our final pieces.

E

We included the Engineering Design process in making out gearboxes. The first step was our project brief. Next, we

Final Engineering Concepts Reflection

This school year was the year of covid

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