ESP32-S3 NES Emulator

This repo based on esp nofrendo. But I really too much work and upgraded it Original Repo : https://github.com/espressif/esp32-nesemu/tree/master/components/nofrendo

A high-performance, DIY handheld NES (Nintendo Entertainment System) emulator powered by the ESP32-S3 microcontroller. This project features high-quality audio via I2S, smooth rendering on an ST7789 display, and games loaded directly from an SD card.

📺 Video Tutorial

Build your own following the step-by-step guide!https://youtu.be/wruJ-BESnX8

Click the image above to watch the full tutorial on YouTube.

✨ Features

• Full Speed Emulation: Runs NES games smoothly thanks to the ESP32-S3's dual-core power.
• High-Quality Audio: Crystal clear game sounds using the MAX98357A I2S amplifier.
• Storage: Load hundreds of ROMs from a Micro SD Card.
• Display: Vibrant colors using the ST7789 IPS TFT display.
• Controls: Full 8-button support (D-Pad + A/B + Start/Select).

🛠️ Hardware Requirements

To build this project, you will need the following components:

• Microcontroller: ESP32-S3 (DevKit or bare module)
• Display: ST7789 SPI TFT Module (e.g., 1.69")
• Audio: MAX98357A I2S Amplifier Module + 3W 4Ω Speaker
• Storage: Micro SD Card Reader Module + Micro SD Card (formatted FAT32)
• Controls: 8x Tactile Push Buttons (6x6mm)
• Power: LiPo Battery & Charging Circuit (Optional/TP4056)
• Wires & Perfboard: For connections.

🔌 Wiring & Pinout

Below is the connection diagram for the components.

⚠️ NOTE: Please verify these pin assignments in hw_config.h (or your main definition file) before flashing.

1. ST7789 Display (SPI)

Display Pin	ESP32-S3 GPIO	Function
VCC	3.3V	Power
GND	GND	Ground
SCL (SCLK)	GPIO [12]	SPI Clock
SDA (MOSI)	GPIO [11]	SPI MOSI
RES (RST)	GPIO [9]	Reset
DC	GPIO [15]	Data/Command

2. Micro SD Card Module (SPI)

SD Module Pin	ESP32-S3 GPIO	Function
CS	GPIO [41]	Chip Select
MOSI	GPIO [2]	Shared with Display
CLK	GPIO [42]	Shared with Display
MISO	GPIO [1]	SPI MISO
VCC	3.3V	Power
GND	GND	Ground

3. MAX98357A Audio (I2S)

Amp Pin	ESP32-S3 GPIO	Function
LRC	GPIO [6]	Left/Right Clock
BCLK	GPIO [5]	Bit Clock
DIN	GPIO [4]	Data In
VCC	5V / 3.3V	Power
GND	GND	Ground

4. Controller Buttons

Button	ESP32-S3 GPIO
UP	GPIO [13]
DOWN	GPIO [14]
LEFT	GPIO [8]
RIGHT	GPIO [17]
A	GPIO [45]
B	GPIO [21]
START	GPIO [47]
SELECT	GPIO [39]

(Connect the other side of all buttons to GND)

💾 SD Card Setup

1. Format your Micro SD card to FAT32.
2. Copy your .nes game files into root folder.
3. Insert the SD card into the module.

🚀 Installation & Setup

1. Clone the Repository:

   git clone [https://github.com/derdacavga/Esp32-S3-nes-emulator-by-DSN.git](https://github.com/derdacavga/Esp32-S3-nes-emulator-by-DSN.git)

2. Open in IDE:
   • Open the project using Arduino IDE.
3. Install Libraries:
   • Ensure you have installed the necessary libraries (e.g., Audio, etc.) library.properties.
4. Configure:
   • Check the pin definitions in the code to match your wiring.
5. Flash:
   • Connect your ESP32-S3 via USB.
   • Select the correct Board and Port.
   • Upload the code.

🎮 Controls

Button	Action
D-Pad	Navigate Menu / Move Character
A	Confirm / Jump
B	Back / Attack
Start	Pause Game
Select	Game Mode / Menu

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🤝 Support

If you found this project helpful, please consider:

• Subscribing to the YouTube Channel.

• Giving the video a Like.

• Starring this GitHub Repository!

• YouTube: [https://www.youtube.com/@DsnIndustries/videos]

• Patreon: [https://www.patreon.com/c/dsnIndustries]

Happy Making!

Games

• Maze Escape: https://play.google.com/store/apps/details?id=com.DsnMechanics.MazeEscape
• Air Hockey: https://play.google.com/store/apps/details?id=com.DsnMechanics.AirHockey
• Click Challenge: https://play.google.com/store/apps/details?id=com.DsNMechanics.ClickChallenge
• Flying Triangels: https://play.google.com/store/apps/details?id=com.DsnMechanics.Triangle
• SkyScrapper: https://play.google.com/store/apps/details?id=com.DsnMechanics.SkyScraper