Hello everyone,

I'm developing an ambient LED lighting panel called KOZMOS. My setup consists of an ESP32, WS2811 addressable LED strips, a PCM5102A DAC, and a TPA3110 2x30W amplifier.

I'm experiencing constant noise and static from the speakers.

My setup:

A single 12V 200W power supply powers both the LED strips and the TPA3110 amplifier.

The ESP32 controls the WS2811 LED strips.

The ESP32 and LED strips share a common ground.

The PCM5102A DAC is connected to the ESP32 and sends audio to the amplifier.

The amplifier drives 8-ohm speakers.

Tests I've performed:

Before connecting the entire system, I powered the ESP32 using a separate phone charger and the amplifier using the 12V power supply. There was absolutely no audible noise.

However, after connecting everything to the same power supply and grounding system, constant speaker noise appeared.…