F21: Flame Over
Contents
Abstract
Flame Over is a single-player mode game where the player moves a fire fighter to destroy the fire flames that come shooting at the player using a water gun. The player is granted four lives at the start of the game at each level. The Player’s lives will decrease by one for every three flames that touch the fire fighter. The player transits to the next level when enough flames are destroyed at each level. The speed of the flames approaching the fire fighter varies between levels.
Objectives & Introduction
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Objectives
- Write driver module to display game characters and update the display continuously at an optimum refresh rate
- Implement game algorithm for movement of player and flames in real-time, generate water splash bullets.
- Implement player lives count, player health and collision algorithms.
- Write driver module to receive directions from the input device (joystick) via zigbee.
- Fetch Joystick data over ADC and transmit the joystick signals wirelessly via Zigbee with the help of UART drivers.
- Write driver module to play game sounds via MP3 encoder
- Use FreeRTOS tasks and understand task priority and synchronization.
Team Members & Responsibilities
- Naveena Sura
- Game logic and design
- Game implementation
- Built game characters on LED matrix display
- Game Animation Screens
- Bug fixes and optimizations
- Suganya Nandakumar
- GPIO Driver for LED matrix display
- Built game characters on LED matrix display
- PCB Schematic and Board Design
- Soldering all components on PCB
- Vaidehi Deshpande
- Joystick Interfacing - ADC driver
- Speaker and MP3 Decoder interfacing
- Zigbee interfacing with UART driver for transmission and reception
- Built game characters on LED matrix display
Schedule
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Parts List & Cost
| Item# | Part Desciption | Vendor | Qty | Cost |
|---|---|---|---|---|
| 1 | SJTwo Boards | From Amazon | 2 | $100.00 |
| 2 | 64x64 RGB LED Matrix | Adafruit | 1 | $92.00 |
| 3 | Wiring Components and Cable | Amazon | 1 | $20 |
| 4 | Digi Xbee module | From Preet | 2 | $0 |
| 5 | HiLetGo Analog 2-axis thumb Joystick | Amazon | 1 | $9 |
| 6 | MP3 music player (YX5300) | Amazon | 1 | $8 |
| 7 | 5V,4A Power Adapter | Amazon | 1 | $20 |
Design & Implementation
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PIN CONFIGURATION
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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
Hardware Design
Printed Circuit Board
Layout & Design
MP3 Serial Player:
MP3 Serial Player module is a simple MP3 player device which is based on a high quality MP3 audio chip. It can support 8kHz - 48kHz sampling frequency MP3 and WAV file formats. Also, this board has a TF card socket so that a SD card can be inserted that stores audio files. SJTwo board can control this module via UART port, such as switch songs, change the volume and play mode, and so on.
The SD card should be formatted as FAT16 or FAT32 and should have some audio files with .mp3 or .wav formats. If user wants to create separate folders then those should be created as “01”, “02” and the songs should be with the names 001xxx.mp3/ 002xxx.mp3/ 003xxx.mp3 in those created folders.
Hardware Interface
Universal Asynchronous Receiver Transmitter (UART) is used as an interface to connect SJTwo board and MP3 Serial Player. UART_3 is configured for YX5300 MP3 player. Below is the pinout connections between UART and MP3 Serial Player:
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
References
Acknowledgement
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References Used
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Appendix
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