Default pin

[SepTGut]

so if use external dac the i2s deafult pin will be this

bck_io_num = 26
ws_io_num = 25
data_out_num = 22

[pschatzmann]

As documented in the legacy API Wiki.
But this is only relevant if you use the obsolete ESP32 2.0.x core versions .

The actual version is 3.1.1 now!