Memory Hunter is a fully hardware-based memory game built on Arduino UNO with WS2812B NeoPixel strip, TM1637 7-segment display, and a passive buzzer.
The machine plays an ever-growing sequence of coloured light + sound cues. The player must repeat them back — in perfect order.
One new step is added every round. Get it right and you level up. Get it wrong — or take too long — and it's dEAd.
🧠 How far can your memory take you?
- LED Strip = Atmosphere Engine
- 4 LEDs = Game Colours
- 4 Buttons = Player Controls
- TM1637 = Score + Countdown Display
- Buzzer = Audio Feedback System
- EEPROM = High Score Memory
- IDLE → BUTTON PRESS → COUNTDOWN (33→22→11→GO)
- SEQUENCE PLAYS → PLAYER REPEATS
- CORRECT = LEVEL UP → LONGER SEQUENCE
- WRONG / TIMEOUT = dEAd → GAME OVER
- HIGH SCORE SAVED → RETURN TO IDLE
- ✔ EEPROM High Score — survives power cycles
- ✔ Idle Marquee Display — 0--0 / HiSr / score cycling
- ✔ NeoPixel atmosphere — rainbow idle, pink game mode
- ✔ Organic LED breathe — each LED independently animated
- ✔ 1-minute inactivity timeout — only fires during gameplay
- ✔ Countdown sequence — 33 → 22 → 11 → GO
- ✔ Unique tone per button — full audio feedback
- ✔ New high score celebration flash + jingle
- IDLE → Rainbow NeoPixel + LED breathe + high score marquee
- TRANSITION → NeoPixel fade to pink + countdown
- PLAYING → Sequence display + player input
- LEVEL UP → Jingle + score increment
- GAME OVER → dEAd flash + wah-wah sound
- HIGH SCORE → Celebration flash + save to EEPROM
| State | NeoPixel | LEDs | Display |
|---|---|---|---|
| Idle | 🌈 Chasing rainbow | Organic breathe | 0--0 / HiSr / score |
| Transition | 🩷 Fade to pink | Off | 33→22→11→GO |
| Game | 🩷 Solid pink | Game colours | Score |
| Game Over | ⬛ Fade to black | Flash + off | dEAd |
| Event | Tone |
|---|---|
| Button 1 | G3 |
| Button 2 | C4 |
| Button 3 | E4 |
| Button 4 | G5 |
| Countdown | C4 beeps |
| Level Up | E4→G4→E5→C5→D5→G5 jingle |
| Game Over | DS5→D5→CS5 wah-wah sweep |
| High Score | A5 flash → C6 pip |
| Start Press | E5 confirmation beep |
- Stored in EEPROM — survives power cycles
- Magic byte 0xAB detects first boot and initialises to 0
- Beat the record → immediate save + celebration effect
- Idle marquee cycles through 0--0 → HiSr → score display
Components:
- Arduino UNO
- WS2812B NeoPixel LED Strip (46 LEDs)
- TM1637 4-digit 7-segment display
- 4x PWM LEDs (game colours)
- 4x Push Buttons
- Passive Buzzer
| Component | Pin |
|---|---|
| Buttons | D4, D5, D7, D8 |
| Game LEDs | D6, D9, D10, D11 |
| Buzzer | D12 |
| TM1637 CLK | D2 |
| TM1637 DIO | D3 |
| NeoPixel Data | D13 |
| RNG Seed | A5 (floating) |
⚠ Pin 12 is NOT PWM on UNO — LED 4 uses pin 3 workaround ⚠ EEPROM: Address 0 = score, Address 1 = magic byte 0xAB
Install via Arduino Library Manager:
- TM1637Display (by Avishorp)
- Adafruit NeoPixel
- EEPROM non-volatile memory management
- Non-blocking multi-LED animation engine
- Finite state idle / game transition system
- NeoPixel HSV rainbow + smooth fading
- Independent per-LED organic breathe animation
- Inactivity timeout scoped to gameplay only
- Random seed from floating analog pin
👉 Wokwi Project: https://wokwi.com/projects/461780873004005377
- Difficulty selector (slow / normal / hard)
- 2-player competitive mode
- Bluetooth leaderboard via ESP32
- Web score dashboard
- LCD extended stats display
- Animated sequence preview
| Version | Highlights |
|---|---|
| v1.0 | Base game |
| v1.1 | NeoPixel rainbow idle |
| v1.2 | TM1637 score display |
| v1.3 | Countdown + level jingle |
| v1.4 | Timeout + LED breathe |
| v1.5 | EEPROM high score + idle marquee + timeout fix |
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👨 Name: Aniket Chowdhury (aka Hashtag)
📧 Email: micro.aniket@gmail.com
💼 LinkedIn: itzz-hashtag
🐙 GitHub: itzzhashtag
📸 Instagram: @itzz_hashtag
This project is released under a Modified MIT License. It is intended for personal and non-commercial use only.
🚫 Commercial use or distribution for profit is not permitted without prior written permission. 🤝 For collaboration, reuse, or licensing inquiries, please contact the author.
📄 View Full License
This is a solo passion project, built with countless nights of tinkering, testing, and debugging.
If you find it useful or inspiring, feel free to ⭐ the repository or connect with me on social media!
_ "The machine remembers everything. The question is — can you?"