but come at the expense of needing a high voltage power supply to supply the charge and an amplifier to buffer and magnify the audio. Electret microphone capsule schematic. wdwd [CC BY 3.0] The ...

The entirety of the build is minimal, consisting of a GY-MAX4466 electret microphone module, a KY-040 encoder for some user control and an ESP32 attached to a Neopixel strip. The only additional ...