Difference between revisions of "F20: Bubble Shooter"

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=== LED Matrix Interfacing ===
 
=== LED Matrix Interfacing ===
[[File:LED Matrix Schematic.png|500x280px |thumb|right|LED Matrix Interfacing]]
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[[File:LED Matrix Schematic.png|500x300px |thumb|right|LED Matrix Interfacing]]
 
[[File:LED Bubble Shooter.png|500x300px |thumb|left|Start Screen of the game]]
 
[[File:LED Bubble Shooter.png|500x300px |thumb|left|Start Screen of the game]]
  

Revision as of 13:49, 16 December 2020

Abstract

Bubble shooter is an arcade game that has bubbles or balls present on the screen. The bubbles are of different colors and the goal is to clear them by forming a group of bubbles (3 or more) of the same color. Points are earned upon clearing the bubbles and increases with the number of bubbles cleared in a single shot. The player wins upon clearing the screen and loses when the bubbles touch the bottom of the screen.

Objectives & Introduction

The objective of this project is to develop a simple, single-player 2D game using LPC 4078 microcontroller on an LED matrix display. It focuses on integrating the micro-controller peripheral drivers, led drivers, MP3 player, button and joystick controller interface and the application software in FreeRTOS. The button controller interface consists of the joystick for moving the shooter left and right. The button is used to fire the ball.

Team Members

Technical Responsibilities

  • Game Logic Development
Hisaam Hashim, Amiraj Nigam, Anirudh Ashrit, Akshat Bhutiani
  • PCB Design
Anirudh Ashrit
  • LED Display Driver
Hisaam Hashim
  • Graphics Driver
Hisaam Hashim, Akshat Bhutiani
  • Mp3 Decoder Driver
Amiraj Nigam, Anirudh Ashrit
  • Joystick Integration
Akshat Bhutiani
  • Hardware Integration
Amiraj Nigam, Hisaam Hashim

Administrative Responsibilities

  • Team Leader
Hisaam Hashim
  • Git Repository Managers
Akshat Bhutiani & Anirudh Ashrit
  • Code Reviewer
Hisaam Hashim
  • Wiki Report Managers
Amiraj Nigam & Anirudh Ashrit
  • Bill of Materials Manager
Akshat Bhutiani


Schedule

Week# Start Date End Date Task Status
1
  • 10/12/2020
  • 10/16/2020
  • 10/18/2020
  • 10/18/2020
  • Literature Survey of Previous year Projects
  • Submission of Project Proposal
  • Completed
  • Completed
2
  • 10/18/2020
  • 10/20/2020
  • Gitlab Repository Created
  • Wiki Schedule page Created
  • Completed
  • Completed
3
  • 10/20/2020
  • 11/01/2020
  • Read and familiarize with LED Matrix Datasheet.
  • Finalize the Components and place the order
  • Completed
  • Completed
4
  • 11/01/2020
  • 11/10/2020
  • Understand the ball tracing logic
  • Understand the logic for ball queue
  • Completed
  • Completed
5
  • 11/09/2020
  • 11/09/2020
  • 11/09/2020
  • 11/09/2020
  • 11/10/2020
  • 11/15/2020
  • 11/15/2020
  • 11/15/2020
  • Finalize wiki schedule
  • LED Matrix Driver Development
  • MP3 Decoder Driver Development
  • Joystick driver development and interfacing
  • Game logic development
  • Completed
  • Completed
  • Completed
  • Completed
  • Completed
6
  • 11/16/2020
  • 11/22/2020
  • Designing of levels in the game
  • Testing trigger motions
  • Testing and debugging the game logic
  • PCB Designing
  • Completed
  • Completed
  • Completed
  • Completed
7
  • 11/23/2020
  • 11/29/2020
  • Integrate game logic code with LED matrix
  • Integrate game sounds with game logic
  • Completed
  • Completed
8
  • 11/30/2020
  • 12/06/2020
  • Integrate subsystem
  • Finalizing the video game
  • Update the wiki page.
  • Completed
  • Completed
  • Completed
9
  • 12/07/2020
  • 12/13/2020
  • Address bugs during testing of an integrated system
  • Test pause/play functionality
  • Completed
  • Completed
10
  • 12/16/2020
  • 12/14/2020
  • 12/14/2020
  • 12/14/2020
  • 12/16/2020
  • 12/16/2020
  • 12/16/2020
  • 12/16/2020
  • Final Demo
  • Update Gitlab repo with final code.
  • Update test video.
  • Update the wiki page.
  • In progress
  • In progress
  • In progress
  • In progress


Bill Of Materials

Item# Part Description Part Model & Vendor Quantity Cost
1 Microcontroller Boards SJ2 Boards (Purchased from Preet Kang) 1 $50.00
2 LED Matrix Display RGB LED Matrix Panel - 32X64 1 $55.00
3 Audio decoder Breakout Board MP3 PLayer Shield 1 $26.95
4 Analog 2-axis Thumb Joystick Analog 2-axis Joystick 1 $10.36
5 Power Supply 5V/3A Power Supply 1 $8.99


PCB Design

The board is designed to connect modules in the game directly. Autodesk's Eagle software is used to design the Schematics and Board layout. The board has 2 layers(Top and Bottom). JLCPCB is the manufacturer of the PCB board.


Schematic Design of PCB
PCB Board Layout
Design Overview of the PCB


Hardware Design & Implementation

Analog Joystick

An ADA512 2-axis Analog Joystick and Button is used for controlling the movement of the launcher and shooting the ball. The data from the joystick is read using the ADC pins of the SJTwo board. The button switch is detected using a digital pin on the board.

Breakout board layout
Soldered joystick















X values & Mapping Y values & Mapping
2297 (center) 2295 (center)
43 (left) 45 (up)
4095 (right) 4090 (down)



VS1053B MP3 Decoder Interfacing

Label Name Function Pin Connection
1 MP3-DREQ Decoder Data Request Pin 0.1
2 MP3-CS VS1053B Chip Select Pin 0.22
3 MP3-DCS VS1053B Data CS Pin 0.0
4 MP3-RST VS1053 Reset Pin 0.10
5 MOSI SPI Bus (Master Output Slave Input) Pin 0.18
6 MISO SPI Bus (Master Input Slave Output) Pin 0.17
7 SCK SPI Clock Pin 0.15
8 +5V +5V PCB Vout
9 GND GND GND







LED Matrix Interfacing

LED Matrix Interfacing
Start Screen of the game





















Software Design

Show your software design. For example, if you are designing an MP3 Player, show the tasks that you are using, and what they are doing at a high level. Do not show the details of the code. For example, do not show the exact code, but you may show pseudocode and fragments of code. Keep in mind that you are showing the DESIGN of your software, not the inner workings of it.

Implementation

This section includes implementation, but again, not the details, just the high level. For example, you can list the steps it takes to communicate over a sensor, or the steps needed to write a page of memory onto SPI Flash. You can include sub-sections for each of your component implementations.

Testing & Technical Challenges

Describe the challenges of your project. What advice would you give yourself or someone else if your project can be started from scratch again? Make a smooth transition to the testing section and described what it took to test your project.

Include sub-sections that list out a problem and solution, such as:

<Bug/issue name>

Discuss the issue and resolution.

Conclusion

This project was a fun and strenuous application of our engineering and project management skills.

After completing the driver labs during CMPE 244, we felt confident that we could develop a driver, for the Adafruit LED matrix, without using any third party libraries. We researched the hardware operations of the LED matrix and how to drive the RGB LED's. Once we could control LED's one at a time, the project evolved from an engineering problem into more of a creative exercise.

Overall I think the biggest lessons that we learned is project management based. We spent a lot of time choosing between various game designs and it forced us to start our final iteration later than we would have liked. However, we bonded together and worked hard and managed to get the game working.


Project Video

Upload a video of your project and post the link here.

Project Source Code

References

Acknowledgement

We would like to sincerely thank Professor Preetpal Kang for his allround guidance, feedback and support. His classroom lectures were significant in imparting knowledge on embedded systems. Further, we would like to thank the ISA team for their advice.

References Used