F18: Goals of Glory

Project Title

Goals of Glory

Abstract

Gesture-based gaming is getting tremendous adoption due to immersive gameplay and increased player engagement. Goals of Glory is a classic penalty shootout game where 2 players can play wirelessly, and the corresponding game visuals are displayed on the LED Matrix in real time. The logic for player movement is based on the output from a Gyroscope and an Accelerometer embedded on MPU 6050 whereas accelerometer on the SJone helps drive goalkeeper movements. Thus the motion of player leg movements to kick and hand movements of the goalkeeper to stop the ball is mapped and the corresponding game animations are displayed on 64x64 LED Matrix. The LED matrix is interfaced to the SJone board in such a way that the main SJone board controlling the LED Matrix receives commands wirelessly from hand and leg movements of each player via the Nordic wireless mesh network. Three display screens are developed for the game UI- Start screen, Game screen, and Result screen. Thus, by playing Goals of Glory, players can experience gesture-based gaming capabilities.

Objectives & Introduction

Introduction

The project is divided into 3 modules

1) LED Module: The 64x64 LED matrix is driven by a Master SJone board which is responsible to map game visuals.

2) Wireless Module: Responsible for communication medium between the goalkeeper, player, and main SJone board

3) Accelerometer Module: This module is responsible for getting the player and goalkeeper movement that will later be mapped to drive game visuals

Game Stats:

2-Player Penalty shootout Game
3-sec timer for each player to shoot
Press switch on the main SJOne board to start
Move the Goalkeeper SJone board left-right to have a corresponding movement of LED Matrix
Control the ball movement via player SJone board to give direction i.e. left, right or straight
Highest player to score wins and is displayed on the result screen

Objectives

Our project involved a focused and rigorous approach to testing each module functionality and make necessary changes thereafter.

Design power management PCB
Developing game visuals for the penalty shootout game.
Developing logic for display tasks such as curving the ball, selecting the player and ball color.
Implement RGB LED matrix driver
Perform RGB LED matrix pin layout with the SJone board and have a deep understanding of how a single or group of LED's are driven.
Perform accelerometer driver
Perform nordic wireless driver
Have a proper synchronization between the player SJone board and goalkeeper SJone board
Examine overall system and make necessary tweaks
Prepare the entire system for demo purpose which includes gloves and mounting pads to mount hardware equipment

Team Members & Responsibilities

Player Movements
- Aniket Phatak
- Bhargav Shashidhara Pandit

Goalkeeper Movements
- Tahir Rawn
- Harmeen Joshi

Display (RGB LED Matrix)
- Harmeen Joshi
- Tahir Rawn
- Satya Sai Deepak. Naidu

Wireless (Nordic)
- Aniket Phatak
- Bhargav Shashidhara Pandit

PCB Design
- Satya Sai Deepak. Naidu

Schedule

Week#	Date	Task	Status
1	09/25	Discuss project ideas to implement gaming projects with group members To come up with new ideas for applications specific to FreeRTOS Submitted the abstract for the Car Racing Game and 1v1 Penalty Shootout for project approval.	Submitted project proposals and waiting for approval from the professor.
2	10/02	Research on components required for the approved project. Discuss project requirements and implementation logic with group members.	1v1 Penalty Shootout Project got approved by the professor
3	10/9	Divide the project into different modules. Assign responsibilities to each group member. Decide deadlines and deliverables for each module.	Divided the workload among each and every group members. Finalized the project implementation logic and developed the basic idea.
4	10/23	To verify power requirements for LED Matrix Ordered 64x64 LED Matrix from Sparkfun. Ordered power supply for LED Matrix from Amazon.	Confirmed the voltage and current rating and placed an order for the power adapter.
5	10/30	Started working on Accelerometer available on SJOne board for player movement. Understand 64x64 LED Matrix connections from Sparkfun datasheets. Brush up on transistor basics and understand how data flows in a given LED Matrix. Get accustomed to Eagle software for PCB design and get used to basic functionality.	Implemented few basic PCB designs Verified pin connections, power requirements for 64x64 RGB LED Matrix. Installed Eagle software and made a simple circuit to get acquainted with the software.
6	11/06	To develop game visuals such as goalpost, ball and ball movement animation. To develop a good understanding of wireless communication between two SJone boards. To control individual LED's on a 64x64 LED Matrix. Understand output latch and output enable addressing modes on a LED Matrix.	Successfully able to display game visuals. Got a basic idea of addressing specific LEDs on LED Matrix using 5-address lines. Understood the functionality of latch, output enable and clock pins of LED Matrix.
7	11/13	To write LED Matrix driver to derive game visuals along with various colors. To finish with the PCB design for our application To map different orientation values with respect to X, Y and Z axis respectively.	Successfully able to achieve game visuals on LED Matrix such as ball movement, goalpost location Completed start screen, score screen and end result screen for the in-game module. Completed PCB design
8	11/20	To develop start screen, score screen and end result screen for the in-game module. Understand the high-level APIs for the Wireless nordic communication and implement a basic driver to communicate between two SJone boards. To order MPU 6050 gyroscope and accelerometer sensor.	Still working on the Start screen, score screen and result screen. Achieved wireless communication between 3 SJone boards
9	11/27	To understand MPU 6050 datasheet and reference manual and write accelerometer driver for our application. To achieve wireless data synchronization between player, goalkeeper and LED matrix modules.	Completed accelerometer & Gyroscope driver and successfully able to get raw values from MPU 6050 Completed nordic driver and able to communicate between 3 SJone boards.
10	12/4	Improve the gyroscope and accelerometer by addition of functions to get yaw, pitch, and roll Testing of the complete integrated system. Addition of extra graphics if time permits.	Completed entire gyro and accelerometer driver for added functionality Successfully able to achieve proper synchronization i.e. by driving the game visuals using goalkeeper and player movements.
11	12/19	Final Demo

Parts List & Cost

Item#	Part Desciption	Vendor	Qty	Cost
1	SJOne Boards	Preet	3	$240.00
2	64x64 RGB LED Matrix	Sparkfun	1	$75.00
3	Power Adaptor Cable	Amazon	1	$9
4	PCB	PCBWay [1]	10	$30
5	MPU 6050	Amazon	2	$11
6	WiFi Antenna	Amazon	3	24
7	Mounting gloves	Amazon	1	$20
8	Power Bank	Amazon	2	$24
9	Miscellaneous (Jumper wires, Connectors, SMD's)	CMPE Lab 294		$5
9	Total

Design & Implementation

The design section can go over your hardware and software design. Organize this section using sub-sections that go over your design and implementation.

Hardware Design

Discuss your hardware design here. Show detailed schematics, and the interface here.

Nordic Wireless

Printed Circuit Board (PCB) Design

Introduction: The game uses a 64x64 LED Matrix which needs a 5v input supply. Since the board supplies 3.3v we level shift the voltage to 5v to avoid any unwanted flickering. So, we have decided to design a level shifter circuit. The design starts with the schematics and then designing the foot print. The design ends with creating the Gerber files and sending them to the manufacturing unit.

Schematics: The design was made in Eagle PCB design software. In preparing your schematics we encountered few challenges with selection of equipment dimensions and dimension terminology(units). The designer should be aware of the dimensions of equipment that are to be used. After getting the idea of equipment add the library of that equipment to eagle through manage library option. Now, the designer can get that item schematic and add it to the design schematics. Complete the schematics based on the circuit that the designer wants to implement. Figure.1 shows the schematics for level shifter circuit. Few tips for schematics: • Make sure the dimensions of auxiliary equipment size match the equipment. For example, the supply port size is 4mm pitch 4 pins if I use 2mm pitch 4pins my circuit is practically cannot be implemented. • Have a clear idea of the equipment and their availability in the market before getting started. Sometimes your design may be correct, but you will not be getting appropriate equipment for installing on circuit board. • Use Vcc and Gnd pins for reducing circuiting complexity.

Schematics for the circuit

Foot Print and Gerber Files:

After the schematics are done, you can see a (_BRD^SCH) button i.e. schematic to board button. Using that button, the footprint page will be opened. Here you will be able to use some skills in designing a compact circuit. Selecting the trace width (in mils) accordingly based on your current ratings. We used a 2 layered 16 mils trace width for safer side to accommodate 4A flow of current. Place all your equipment in the square (board area) and can have positioned them upon the designers will. Click on auto net list button to run the simulations for possible tracing options

Foot Print

Final Board

The designer can select one or draw the traces manually( manual is mostly preferred for better results).The foot print of out circuit is shown in Figure.2. Now, continue with DRC(design real check ) to check the possible errors while manufacturing. Make sure that there are no errors. After all the errors are cleared create the Gerber files for manufacturing company to provide those files to the manufacturing machines.

Software Design

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Implementation

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Testing & Technical Challenges

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<Bug/issue name>

Discuss the issue and resolution.

Conclusion

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Project Video

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Project Source Code

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References

Acknowledgement

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References Used

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Appendix

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