🎮 Multi-Matrix

Arduino-based multi-purpose gadget & retro game console 8×8 LED matrix • Gyroscope • Magnetometer • Touch controls

🎬 Project Demo

▶ Click here to watch the full Multi-Matrix demo video

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📸 Project Gallery

🔍 Click to expand/view the build photo gallery

Here is a look at the hardware setup, wiring, and components of the Multi-Matrix console:

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📋 Overview

Multi-Matrix is a project which turns an Arduino(Nano), an 8×8 LED matrix, and two I²C sensors into 8 different tools / games — all switchable on the fly with 4 touch buttons and a shift key. Compact, self-contained, and fun to build and play.

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✨ Modes

#	Icon	Mode	How it works
0	🧭	Needle Compass	Magnetometer → single LED points North
1	🔤	Letter Compass	Shows N / S / E / W as full letters
2	🎳	Arcade Bowling	Tilt to aim, shake to roll
3	🐍	Snake	Tilt to steer, eat food, don't crash
4	🐦	Flappy Dot	SHIFT to flap, dodge the pipes
5	🎲	Dice	Shake to roll — result on matrix
6	🎱	Magic 8-Ball	Shake for Yes / No / Maybe
7	🔵	Bubble Level	Tilt the board, center the dot

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🕹️ Controls

Button	Normal Press	+ SHIFT Held
TOUCH 1	Needle Compass	Letter Compass
TOUCH 2	Bowling	Snake
TOUCH 3	Flappy Dot	Dice
TOUCH 4	Magic 8-Ball	Bubble Level
SHIFT	(Jump for Flappy Bird)	Flappy Bird jump

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🔧 Hardware Required

Component	Specification
Microcontroller	Arduino Nano / Uno / Mega
Display	8×8 MAX7219 LED Matrix FC16
IMU	MPU-6050 · I²C @ 0x68
Compass	HMC5883L · I²C @ 0x1E
Input	1x Single channel & 4-Channel Touch Sensor
Audio	Passive buzzer

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📌 Wiring

🔌 Pin Mapping

Arduino Nano Pin	Component Pin	Device / Function
D10	CS	MAX7219 8x8 LED Matrix
D11	DIN	MAX7219 8x8 LED Matrix (Hardware SPI Data)
D13	CLK	MAX7219 8x8 LED Matrix (Hardware SPI Clock)
D2	OUT1	HW-138 4-Channel Touch (Pad 1)
D3	OUT2	HW-138 4-Channel Touch (Pad 2)
D4	OUT3	HW-138 4-Channel Touch (Pad 3)
D5	OUT4	HW-138 4-Channel Touch (Pad 4)
D6	SIG	Single Touch Sensor (Shift Key)
D7	VCC / +	Passive Buzzer
A4	SDA	MPU6050 (Tilt) + GY-271 (Compass) [Shared I²C Bus]
A5	SCL	MPU6050 (Tilt) + GY-271 (Compass) [Shared I²C Bus]
5V	VCC	Shared Power Rail (All Modules)
GND	GND / -	Shared Ground Rail (All Modules & Buzzer)

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📦 Dependencies

Install via Arduino Library Manager:

• MD_MAX72XX — MajicDesigns
• Wire.h — built-in

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⚙️ Calibration

At the top of the sketch, set your IMU offsets:

int16_t offsetX = 0;  // ← replace with your X offset
int16_t offsetY = 0;  // ← replace with your Y offset

Tip: Lay the device flat, open Serial Monitor at 9600 baud, and read the raw calX / calY values — those are your offsets.

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🚀 Quickstart

1. Wire components per the diagram above
2. Install MD_MAX72XX via Library Manager
3. Set calibration offsets in the sketch
4. Upload → enjoy!

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📁 Repository Structure

Multi-Matrix/
├── assets/                  # Project banner, demo video, and build gallery images
├── src/
│   └── Multi-Matrix.ino     # Main application source code
├── .gitignore               # Prevents tracking of local build and editor files
├── LICENSE                  # Project license (MIT)
├── platformio.ini           # PlatformIO project configuration & library dependencies
└── README.md                # Project documentation

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Made with jumpers and breadboard

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🤖 AI Disclosure

🔍 Click to view AI usage in this project

To maintain full transparency, here is how AI tools were utilized to help build this project:

• Gemini: Assisted in generating the initial prototype code and brainstorming features.
• Claude: Assisted in debugging prototype iterations of the main code, optimizing performance, and providing structure tips for the repository and documentation.

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📄 License

MIT — see LICENSE