I decided I want to create my own board for Digital Signal processing. Here are going to be some references of what do I want in my design.

Features:

• ESP32S3 16 Mb RAM
• SGTL5000
• SD
• Microphone pre amplifier
• Line In
• Line Out
• HP out (SGTL)
• MIDI input/output, with Midi connector
• Connector for I2C Expander for lots of Analog/Digital inputs/outputs
  • VCC
  • INT
  • SDA
  • SCL
  • GND
• Battery, with charger
  • BQ25101, its a bit too small
  • MCP73831T-2ACI/OT
  • Connector for battery, compatible with the RS battery

Reference designs:

• Teensy Audio Board

Some references

PCB V0.1 Make it to work

The board works if there is battery connected, and the D+ D- are flipped. Also is necessary to add the next in the code:

[env:ai_thinker_esp32s3]
platform = espressif32
board = esp32-s3-devkitc-1-n16r8v
framework = arduino
upload_speed = 115200
monitor_speed = 115200

; set cpu frequency - 80, 160 or 240MHz
board_build.f_cpu = 240000000L 

build_flags =
    -DCORE_DEBUG_LEVEL=5 
    ;-Wl,-Map,output.map

And add to a bolder in the root of the platformio project, called boards, with this file