many thanks @felmue - got that working via PWM as suggested - THANK YOU!!

do the later models, e.g. Core 3 use i2S?

Looking for some help - trying to enable the speaker for a Basic Core in ESPHome.

I need to enter the I2S info such as: .. =

i2s_audio:
i2s_lrclk_pin: GPIOxx
i2s_bclk_pin: GPIOxx

Can anything kindly confirm which GPIO pins show I use for this? Thanks