F21: Sons of Ultron

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BUBBLE TROUBLE.jpeg



Bubble Trouble

Abstract

Clear all the bubbles and get yourself out of trouble !! “Bubble Trouble” is a fun game where each time you hit a big bubble, it will split up into two smaller ones. Avoid the bubbles as they bounce through the level. Race against time, collect all the traps and power-ups you can use to be the best at this game. Do you have what it takes to be the ultimate bubble shooter?. This is all displayed in the LED matrix acting as the screen. Use your spike gun to pop all the bubbles from the largest to the smallest bits. Can you clear each level?.

Objectives

The main objective of this project was to create the “BUBBLE TROUBLE” video game displayed on a 64X64 RGB LED matrix, with one SJ2 board as a graphics processor/matrix controller, and another SJ2 board as a controller. Other objectives are the following:

  • Design custom PCBs for both the gamepad and matrix controller SJ2 boards.
  • Use the FreeRTOS Real-Time Operating System on both SJ2 boards.
  • Establish UART communications through Xbee between the two SJ-Two Microcontrollers.
  • Create simple coding logic for displaying required characters and game objects.
  • Add background music to the game to enhance the gameplay experience.

Introduction

  • Matrix Controller Board: The matrix controller board is responsible for displaying the graphics of the game, controlling the game logic, playing MP3 tracks based on the current game/menu screen, receiving character movement and button press signals over the Xbee interface.
  • GamePad Controller Board: The gamepad controller board is responsible for processing input joystick and button press signals, controlling the character controls logic, sending character movement and button press signals over an Xbee interface.

HOW TO PLAY BUBBLE TROUBLE: The main aim of the game is to burst all the balloons and advance to the next level.

  • Using the joystick on the game controller, move the character left or right.
  • Shoot arrows using the button on the game controller to burst the balloons into smaller ones.
  • The character must avoid getting hit by the balloon.
  • If the character gets hit by the balloon it loses one life and the level restarts
  • Each level has a time limit to complete it. If all the balloons are not burst in that time limit the player loses one life.
  • With each level the number of balloons and the size of balloons increase.


Technical Responsibilities

Technical Roles
  • Game Logic Development
Rishabh Gupta & Vilas Dhuri & Saharsh Shivhare
  • PCB Design
Vilas Dhuri
  • LED Display Driver
Rishabh Gupta
  • Graphics Driver
Rishabh Gupta & Vilas Dhuri & Saharsh Shivhare
  • Splash Screen Graphics Driver
Vilas Dhuri & Saharsh Shivhare
  • MP3 Decoder
Saharsh Shivhare
  • Hardware Integration
Vilas Dhuri & Saharsh Shivhare

Administrative Responsibilities

Administrative Roles
  • Team Leader
Rishabh Gupta
  • Git Repository Managers
Rishabh Gupta
  • Code Reviewers
Rishabh Gupta & Vilas Dhuri & Saharsh Shivhare
  • Wiki Report Manager
Vilas Dhuri
  • Bill of Materials Manager
Saharsh Shivhare


Schedule

WEEK# Start Date End Date Task Status
1
  • 10/11/2021
  • 10/17/2021
  • Read previous projects, gather information, and discuss among the group members.
  • Create a GitLab repository for the project.
  • Completed
  • Completed
2
  • 10/18/2021
  • 10/24/2021
  • Order necessary parts
  • Distributing project tasks among group members
  • Completed
  • Completed
3
  • 10/25/2021
  • 10/31/2021
  • Read and familiarize with LED Matrix Datasheet.
  • Read and familiarize with MP3 Decoder Datasheet.
  • Completed
  • Completed
4
  • 11/01/2021
  • 11/7/2021
  • Finalize wiki schedule
  • Developing graphics driver for LED matrix and implementing initial game objects
  • Designing Game Start-up Screen and Game Over screen
  • Designing PCB and Circuit Simulation in Eagle Tool
  • Completed
  • Completed
  • Completed
  • Completed
5
  • 11/8/2021
  • 11/14/2021
  • Joystick integration and Button for shooting
  • Implementing Character Movement through Joystick using UART
  • Implementing Arrow shooting logic
  • Designing and Implementing Ball Trajectory and bounce logic
  • Completed
  • Completed
  • Completed
  • Completed
6
  • 11/15/2021
  • 11/21/2021
  • Implementing Ball Splitting logic
  • Developing Screen Transition from game screen to level
  • Game logic development
  • Testing and debugging the game logic
  • Completed
  • Completed
  • In Progress
  • In Progress
7
  • 11/22/2021
  • 11/28/2021
  • Configuring Xbee Modules
  • Integrating Xbee for wireless remote control and character Movement
  • LED Matrix Score and Lives Bar
  • Implementing Game timer
  • Implementing game logic for the ball hitting the character
  • Finalize PCB design in software and order PCB
  • Integrating MP3 decoder into the game
  • Integrating game sounds with game logic
  • Completed
  • Completed
  • Completed
  • Completed
  • Completed
  • Completed
  • In Progress
  • In Progress
8
  • 11/30/2021
  • 12/06/2021
  • Integrate subsystem
  • Finalizing the video game
  • Update the wiki page.
  • Not started
  • Not started
  • Not started
9
  • 12/07/2021
  • 12/13/2021
  • Address bugs during testing of integrated system
  • Test pause/play functionality
  • Not started
  • Not started
  • Not started
10
  • 12/16/2021
  • 12/14/2021
  • 12/14/2021
  • 12/14/2021
  • 12/16/2021
  • 12/16/2021
  • 12/16/2021
  • 12/16/2021
  • Final Demo
  • Update Gitlab repo with final code.
  • Update test video.
  • Update the wiki page.
  • Not started
  • Not started
  • Not started
  • Not started


BILL OF MATERIALS

Parts List & Cost

Item# Part Description Part Model & Vendor Quantity Cost
1 Microcontroller Boards SJ2 Boards (Purchased from Preet Kang) 2 $100.00
2 LED Matrix Display Adafruit RGB LED Matrix Panel - 64x64 1 $54.95
3 PCB JLC PCB 5 $18.00
4 Electronics Fun Kit & Power Supply Module ELEGOO Upgraded Electronics Fun Kit 2 $7.56
5 MP3 Decoder HiLetgo YX5300 UART Control Serial MP3 Music Player Module 1 $6.99
6 Power Adapter for LED Matrix Belker 36W Adapter (Borrowed from TA) 1 $0.00
7 XBee Module XBee 2mW Wire Antenna - Series 2C (ZigBee Mesh)(Borrowed from Prof. Preet) 2 $0.00
8 Joystick HiLetgo Game Joystick Sensor Game Controller 1 $4.89
9 Push Button Switch Anchor Electronics 1 $1.00
10 Jumper Cables Anchor Electronics 1 $7.00
11 Female headers for SJ2-PCB Connection Anchor Electronics 1 $2.50
12 Ribbon Cable Connector for LED Matrix-PCB Connection Anchor Electronics 1 $1.00
13 Soldering Wire & 18 Gauge Wire Anchor Electronics 1 $3.00
14 Copper Board for Game Controller Connections Anchor Electronics 1 $4.00
Total Cost 22 $210.89


Design & Implementation

PIN CONFIGURATION

  • PIN# SJ2 Main Board - LED Matrix Pin Configuration SJ-2 PIN
    R1 PIN for Red terminal of RGB LED for the upper half of LED Matrix P0_0
    G1 PIN for Green terminal of RGB LED for the upper half of LED Matrix P0_1
    B1 PIN for Blue terminal of RGB LED for the upper half of LED Matrix P2_2
    R2 PIN for Red terminal of RGB LED for the lower half of LED Matrix P2_4
    G2 PIN for Green terminal of RGB LED for the lower half of LED Matrix P2_5
    B2 PIN for Blue terminal of RGB LED for the lower half of LED Matrix P2_6
    A Mux pin for row selection P2_7
    B Mux pin for row selection P2_8
    C Mux pin for row selection P2_9
    D Mux pin for row selection P0_16
    E Mux pin for row selection P0_15
    OE Output Enable P1_28
    LATCH Data Latch P1_29
    CLK Clock Signal P0_17
    MP3 Decoder
    RX UART Receive From MP3 Decoder P2_1
    TX UART Send Command from SJ-2 Main Board P2_0
    XBEE Module Receiver
    RX UART Receive From Game Controller P0_11
    VCC VCC Supply VCC 3.3
  • PIN# Controller Board Pin Configuration uC PIN
    XBEE Module Transmitter
    TX UART Transmit to Main Board P0_10
    VCC VCC Supply VCC 3.3
    Joystick
    VCC VCC 3.3V
    GND GND GND
    Vx X-axis ADC Reading for character movement P0_25
    Push Button
    I/0 Pin Arrow Shooting P1_29

PCB DESIGN

We chose Eagle AutoDesk as our PCB designing software since we got its free license for a year after registering with university email-id. The routing was done manually to create a PCB from a schematic. We designed one PCB, one for our game for our matrix controller. First, we created separate schematics for the controller that included all connections. We included the XBee mount available in the Adafruit library that enabled us an easy connection to the module. For MP3 we directly used male headers whose connection is mapped from the underside of the PCB. Once our schematics were done and we checked it several times. We would like to give a special mention to our roommate Pushkar who is quite familiar with Eagle AutoDesk. He helped us to cross-check the connection and provided us with tips to do better routing.PCB was sent to fabrication to JLCPCB China which provided PCB with an order of 5 and 2 layers of PCB and common grounded the rest of the copper area.

Matrix Board PCB Schematic


  • PCB Top Layer
  • PCB Bottom Layer
  • BRD Image


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