It also has all of the I/O you would expect something based on an ESP32 to have, such as I2S stereo DAC, an I2S microphone input, I2C GPIO extenders and, of course, a built-in MicroSD card reader.

Instead, he wound up assembling a custom bass reactive LED display using an ESP32. The entirety of the build is minimal, consisting of a GY-MAX4466 electret microphone module, a KY-040 encoder for ...