Engineering Concepts

Robot Project (Sumobot)

Brief:

Today we learned that we are starting the semester with a robot project.

Above is the briefing for the prototype.

This is a continuation of the project.

Above is the briefing for the final sumobot.

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Moving Servo

Today we took our next steps in the project and made a servo move using Arduino. We wired and coded everything ourselves with the help of a diagram.

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Two Servos Independent

In class today we took it to the next level and made two servos function. They alternate moving back and forth.

Servo Wiring

Using the digital software TinkerCad, we made a diagram to show how we wired everything to make two servos move.

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Robot Research

I am planning on taking inspiration from the battery placement on this robot for my own design. The battery shown on this robot is very easily accessible and convenient.

The circuit diagram provided on this website is very helpful and straight forward. I will probably go back to look at it for reference.

I really like the overall set up of the chassis on this robot. The battery is in a convenient spot, and so is all the wiring and reset button.

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Battery Power

In class we wired the battery packs into our circuit, and installed the batteries so that our circuit would function without being plugged into the computers.

Battery Power Wiring

To the left is an image showing how we wired the circuit to be powered via batteries.

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Robot Base Built

Today we started our prototype and assembled the base of our robot by hot gluing all of the Arduino circuits to a chassis. We also programmed it to move forwards and backwards.

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For-Back-Left-Right

I added to the forward and backward programming by coding my robot so that it also turns left and right.

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Mini Track

Today we practiced coding so that our robot would stay within a path. Tape on the floor created a 'road', and I coded my robot to follow the path using forward, backwards, left, and right coding.

Function Code

We used functions to make our code have less lines, and overall simpler for the programmer to code.

#include <Servo.h>

Servo Left; // create servo object to control a servo

// twelve servo objects can be created onServo Left; most boards

Servo Right; // create servo object to control a servo

// twelve servo objects can be created onServo Left; most boards

int pos = 0; // variable to store the servo position

void setup() {

Left.attach(9); // attaches the servo on pin 9 to the servo object

Right.attach(11);

}

void Forward() {

Left.write(0); // tell servo to go to position in variable 'pos'

Right.write(180);

}

void Backwards() {

Left.write(180); // tell servo to go to position in variable 'pos'

Right.write(0);

}

void TurnLeft() {

Left.write(180); // tell servo to go to position in variable 'pos'

Right.write(180);

}

void TurnRight() {

Left.write(0); // tell servo to go to position in variable 'pos'

Right.write(0);

}

void Stop() {

Left.write(90); // tell servo to go to position in variable 'pos'

Right.write(90);

}

void loop() {

Forward();

delay(4000); // waits 15ms for the servo to reach the position

Backwards();

delay(5000); // waits 15ms for the servo to reach the position

TurnLeft();

delay(5000); // waits 15ms for the servo to reach the position

TurnRight();

delay(5000); // waits 15ms for the servo to reach the position

Stop();

delay(5000); // waits 15ms for the servo to reach the position

}

Drawing Practice #1

3D Drawing Steps:

Draw horizon line
Make vanishing point
Draw front of shape
Add diagonal lines going to the VP
Draw back of shape (parallel)
Add more diagonals
Erase construction lines
Add shading

Drawing Practice #2

Drawing Practice #3

Drawing Practice #4

Hobby Motor Wheel Onshape Sketch

We used the digital software Onshape to create a sketch that we could transfer to Glowforge.

Hobby Motor Wheel

This is a photo of the final product after using the Glowforge.

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Two Hobby Motors Moving

We started working with hobby motors to move our wheels, that way we have two different options for how our wheels can move for our sumo-bot.

Robot Base Built Two

We built the second base for the Hobby Motors. We also added on to this base to enclose our electronics.

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For-Back-Left-Right

This is when we got the hobby motors and the base to go all directions through Arduino coding.

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Ultra Sonic Sensor Working

We were introduced to a new electronic piece, one that can detect objects in front of it. We are going to use this to make our robots autonomous.

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Dabble LED Light

We used an app called 'Dabble' to control the brightness of an LED from our phones.

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Robot Bluetooth Controlled

Using the Dabble app, we connected our robots to bluetooth so that we could control them via a controller on our phones.

Final Bot Idea Development

(Sketch)

Plan:

My plan was to create a very clean and professional looking robot that represented the Christmas holiday. To accomplish this I decided on red and green as my complementary colors.

I also made sure to digitally fabricate all parts to make sure my robot was very clean cut.

I decided to go with a present design for a wow factor that will catch the crowd's eyes.

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Final Robot Video

This is the video of my robot functioning. In the video I am using BitBlue to control my robot through my mobile device, making it go fowrads, backwards, right, left, and motionless.

OnShape & Glowforge

My Sumo Bot is advanced because all parts were fabricated using OnShape and Glowforge. Meaning all parts were designed digitally and then laser printed from cardboard. This ensures precision and perfectly lined up sides and measurements.

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Getting Our Adafruit Feather Working

Today we worked on getting the Adafruit feather to work. We determined it was working when the flashing red light was visible.

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Getting Our LED Board Working

After getting the Adafruit feather working, we had to get a new set of code and connect a LED board to the feather. Once the new code was run, the board should have about two LEDs light up.

Coding Board to Show Smiley

In class today we learned about matrixes and how they are used to show images. We then took what we learned and coded the LED boards to display the image of a smiley face using python.

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