Esphome I2S audio media player setup without external DAC

ESPHome
1

I’m trying to use esp32 for audio player, here is the config file:


i2s_audio:
  i2s_lrclk_pin: GPIO22
  i2s_bclk_pin: GPIO23
    
media_player:
  - platform: i2s_audio
    name: ESPHome I2S Media Player
    dac_type: internal
    mode: stereo

Before buying any DAC, I want test if it can work.
I just connect GND/gpio25 to headphone jack,
But there is no sound when playing any wav file.
Not sure what is wrong.
Is anyone knows any example to set esphome with internal DAC?
Thanks.

2

Why would you expect analog audio out of GPIO25 when all you’ve defined is a media player via I2S (so a digital signal) using GPIO22&23?

Edit: I wasn’t privy to how the built-in DAC on the ESP32 works, so just ignore me. :slight_smile: I’ve done audio projects, but always with an external DAC.

3

I see the document shows it can use internal DAC, so I guess it shall work. But I did not see any examples.