TOS-embedded-game

An ATMEGA328P embedded system implementing a game called Turn on the Sequence! (TOS).

Assignment #01 - Embedded Systems

This project realizes an embedded game called "Turn on the Sequence!" (TOS) on the Arduino platform. It is a memory-based game where the player must reproduce a sequence of numbers displayed on an LCD by pressing the corresponding buttons and lighting up LEDs.

📋 Project Overview

• Architecture: Super-Loop with Interrupts
• Programming Style: Procedural (C-style).
• Key Features:
  • Interrupt-based input handling with non-blocking debounce.
  • Deep Sleep mode for power saving.
  • Non-blocking LED fading effects.
  • Adaptive difficulty system.

📚 Libraries Used

• LiquidCrystal_I2C - For LCD control.
• EnableInterrupt - For handling pin change interrupts on buttons.
• avr/sleep.h & avr/power.h - For power management.

🛠️ Hardware Requirements

• 1x Arduino Uno
• 1x LCD Display (16x2) with I2C module
• 4x Green LEDs (Game sequence)
• 1x Red LED (Standby/Game Over)
• 4x Tactile Buttons
• 1x Potentiometer (10kΩ)
• Resistors (220Ω for LEDs, 10kΩ for Buttons)
• Breadboard and Jumper Wires

🔌 Wiring Map

Component	Arduino Pin	Note
Button 1 (L1/Start)	Digital 5	Input (Interrupt)
Button 2 (L2)	Digital 4	Input (Interrupt)
Button 3 (L3)	Digital 3	Input (Interrupt)
Button 4 (L4)	Digital 2	Input (Interrupt)
Green LED 1	Digital 11	Output
Green LED 2	Digital 10	Output
Green LED 3	Digital 9	Output
Green LED 4	Digital 8	Output
Red LED	Digital 6	Supports PWM
Potentiometer	Analog A3	Difficulty Selector
LCD SDA	Analog A4	I2C Data
LCD SCL	Analog A5	I2C Clock
Random Seed	Analog A0	Left unconnected

🎮 How to Play

1. Setup: Connect the Arduino to power. The Red LED will start pulsing, you can now click Button 1 to enter the setup, otherwise the system will go in deep sleep mode after 10 seconds.
2. Difficulty: Adjust the Potentiometer to select a difficulty level (Easy, Medium, Hard, Extreme).
3. Start: Press Button 1 to confirm and start the game.
4. Play:
   • A sequence of 4 numbers (e.g., 4 1 3 2) appears on the LCD.
   • Press the corresponding buttons (B4 -> B1 -> B3 -> B2) within the time limit.
5. Progression: If correct, the score increases, and the time limit decreases for the next round.
6. Game Over: If time runs out or the wrong button is pressed, the Red LED turns on. The final score is shown before resetting.

📂 Project Structure

assignment-01/
├── src/
│   └──TurnOnTheSequence/
│       └── TurnOnTheSequence.ino   # Main source code
├── doc/
│   ├── scheme.png                  # Breadboard layout
│   ├── schematic.pdf               # Schematic diagram
│   └── demo.md                     # Demonstration video link
└── README.md                       # This documentation