- Muchas notas - Fran Acién

20250713 - ESP32S3-DSP

A board I designed in June 2025 that is a digital signal processing project with the SGTL5000 and ESP32S3.

Connect SPI TFT

  • RST ->
  • CS ->
  • DC ->
  • SDA -> D41 MOSI
  • SCL -> D40 CLK
  • GND -> GND
  • VCC -> 3V3

V0.1 - Known errors

  • The IBOM is not correctly generated
    • IDs
    • 100nf
    • Last U5 U4
    • IPN
  • Missing power on LED
  • USB Digital connections are flipped
  • The logic of L2 is working, but seems that the resistor or the orientation of the resistor is wrong. It gives 5V when charging.
  • Change vias so they are not exposed
  • Move vias that are close to pads
  • It is necessary to put the battery to work
    • Put zenner diode and connect Vbus to ldo
  • Put (cheap) castelated pins
  • The holes for the screws are not made to have a battery
  • SPI connections put the correct silkscreen
  • Make the pcb wider and shorter, maybe by removing components silkscreen or moving the sd to the bottom layer. That would be nice but is not necessary.