Bluetooth audio

[qinzian2000]

When using Pico 2W to run sketch A2DPSink.ino, I found that Pico 2W has a lot of noise and can only play one lyric, causing Bluetooth to disconnect. Is there any way to solve this problem

[earlephilhower]

Thanks, I was able to verify this happens on the RPI WiFi module on the SparkFun Thing Plus RP2350 (no Pico 2Ws at Microcenter yet) and verify also the the exact same code works fine on the Pico W (I actually left my phone connected to the PicoW overnight and it was still playing).

Given that IIRC there is no code difference in the code in this repo for A2DP for the Pico vs. Pico 2, my worry is that this is an issue in the Pico SDK. The BT stack has always been fragile, in my experience, and maybe there's just something in the Pico2 driver that's not playing nice with the higher data rates of A2DP.

Have you experienced any issues with standard BT or BLE? Or just the A2DP?

I think the next step is to build the A2DP sample using the raw SDK and see if that also craps out on the Pico2W. If so, it'll be out of our hands but we can open an issue on the SDK repo.