Webbase-DSP-System

A university project for controlling a DSP system via a web interface. Includes ESP32 firmware, web frontend, and DSP configuration files.

• Devices:
  • ESP32 (Arduino)
  • ADAU 1452 Board ebay

Screenshot	Description
	Hardware Set UP
	Web frontend

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Table of Contents

• Installation
• Usage
• Project Structure
• Contributing
• License

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Installation

1. Clone the repository:

git clone https://github.com/lucae98/webbase-DSP-system.git
cd webbase-DSP-system

2. Open the PlatformIO project (ESP32):

   • check and edit source Code
   • Use VSCode with the PlatformIO extension.
   • Check platformio.ini and select the correct ESP32 board.

3. Use your Browser to open the index.html

   • check and edit source Code
   • view the website
   • F5 when you change something → see the results

4. Install Sigma Studio 4.7 (ADAU1452)

   • check and edit configuration
   • check tutorials for Sigma Studio for further infos
   • connect via JTAG-Adapter like this: TinySine-USBi-JTAG

5. Connections:

   • The pins may differ from the board you are using.

   • SPI:

     Device	Pin	→	Device	Pin
     ESP 32 MOSI	23	→	ADAU MOSI	MOSI
     ESP 32 MISO	19	→	ADAU MISO	MISO
     ESP 32 CLK	18	→	ADAU CLK	CLK
     ESP 32 CS	5	→	ADAU CS	CS
     ESP 32 GND	GDN	→	ADAU GDN	GND
     PSU	USB	→	ESP 32	Micro USB
     PSU	USB	→	ADAU	Only one Micro USB is required

   • Audio:

     Device	Pin	→	Device
     ADAU IN L	RED IN 1	→	Audio Source L
     ADAU IN R	RED IN 2	→	Audio Source R
     ADAU OUT L	GREEN OUT 1	→	Audio Target L
     ADAU OUT R	GREEN OUT 2	→	Audio Target R

Usage:

• ESP32 Firmware: Flash the firmware and the data (website, config) via VS-Code and PlatformIO
  • Write the Website-Data and config.json to Flash-Memory of the ESP32 → ../webbase-DSP-system/firmware/data
• ADAU1452 Firmware: Open the SigmaStudio project and load the configuration on the DSP (ADAU1452)
• Web Interface: Connect to the WiFi-Network from the ESP32 → Open a browser and go to the ESP32 IP address → you find the initial config (e.g.: IP, SSID, WiFi-Key) in ../webbase-DSP-system/firmware/data/config.json

Project Structur

webbase-DSP-systemwir/
├─ docs/ # Documentation 
├─ dsp/ # SigmaStudio DSP projects
├─ firmware/ # ESP32-Firmware (Arduino)
├─ sim/ # Jupyter-Notebook for biquad-filter simulation
├─ web/ # Website files
└─ README.md

Contributing

• Please submit changes via pull requests.
• Create a new branch before making modifications.
• Document any major changes in the README.md or ../docs/.
• You can find ideas for new features in ../docs/FEATURES.md

License:

• GNU General Public License v3.0