u/BabeinlovexD

Hey everyone,

I'm currently working on a custom soundbar that is designed to be fully integrable into a smart home system. The main board features a total of four MCUs: one for a low-latency wireless subwoofer link, one exclusively for Bluetooth (with AAC codec support), one ESP32-S3 as the main Wi-Fi hub for Home Assistant integration (ESPHome), and finally, an RP2354 acting as a dedicated hardware DSP.

Since populating this finished board isn't exactly a cheap undertaking, I’d really appreciate it if some of you could take a look over the schematics and the PCB layout. This is strictly a passion/hobby project—I am neither an academic nor a professional EE.

The entire project, including the corresponding RX module for the subwoofer, is hosted here: https://github.com/babeinlovexd/Insane-Soundbar

Thank you in advance for any criticism, spot-checks, and feedback!

Hello everyone! I need some feedback.

This is a subwoofer module (ESP32 WROOM 32UE + TPA3116D2) designed for a custom soundbar, including a flasher for initial module programming.

Don't be confused by the prefix numbers, as the parts list also includes the soundbar. (Still a work in progress.)

Thanks in advance to the community and for any feedback!

Hi everyone, I’m looking for a review of my wireless subwoofer module (receiver/amp). The DSP is located in the soundbar; this board is only for reception and amplification.

Hardware:

• MCU: ESP32-WROOM-32U (WLAN Audio)
• Amp: TPA3116D2 (Class-D)
• Power: 24V DC input / TPS5430DDA for 5V (22µH inductor for ripple reduction)
• Status LED: Blue 3mm LED (3.3V, 20mA) via AO3400A MOSFET as a low-side switch on GPIO16

Questions:

1. Does the switch node on the TPS5430 look okay regarding EMI to avoid interference in the audio path?
2. Do you see any critical points in the routing regarding the Signal-to-Noise Ratio (SNR) for the TPA3116D2?
3. Are there any other suggestions for improvement?