Followup of https://youtu.be/lQEAYUxW_EA

I had buzz on the audio while receiving from the bluetooth as soon as I shared power with the ESP or the Amplifier.

Since there's not enough space in this box to add an extra battery + its charger module I just removed the XS-3868.

• ESP32 MH-ET-LIVE
• 2x SSD1306 64x48
• PAM8403 Stereo Amp w/ switch https://www.aliexpress.com/item/PAM8403-mini-5V-digital-amplifier-board-with-switch-potentiometer-can-be-USB-powered/32464197247.html

The ESP32 animating the Audiospectrum is running a slightly modified version of this project: https://github.com/G6EJD/ESP32-8-Octave-Audio-Spectrum-Display