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tierneytim / btAudio

Bluetooth Audio for Arduino
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MAX98357A #12

Closed darkmoon3d closed 3 years ago

darkmoon3d commented 3 years ago

Should this work on MAX98357A (https://www.adafruit.com/product/3006) or will this only work on I2S Stereo Decoder - UDA1334A (https://www.adafruit.com/product/3678)?

Could code be modified to work with PWM audio Pam8302-(https://www.adafruit.com/product/2130)?

tierneytim commented 3 years ago
  1. Yes, it will work with MAX98357A. I made a lipo-powered Bluetooth speaker with the Sparkfun thing plus. Whatever board you use you need to make sure the power supply can supply as much current as the board needs. the thing plus has a beefy regulator and lipo management making it ideal.
  2. Could do but I'm currently working on PDM audio as opposed to PWM audio so I'm unlikely to build that in anytime soon.
darkmoon3d commented 3 years ago

Interesting. Am using similar setup with Huzzah ESP32 board (https://www.adafruit.com/product/3405) with MAX98357A but unable to work. ESP32 device 'ESP_Speaker' is showing up but not getting any audio. Using 3W 4ohm speaker (https://www.adafruit.com/product/4445)

Using following wiring:

ESP32 == MAX98357A D25 == DIN D26 == BCLK F27 == LRC 3V == VIN GND == GND

Have also tried USB==VIN

Arduino Settings: Board: Adafruit ESP32 Feather Upload Speed: 11520 Flash Freq: 80mhz Partition: Default Core Debug: None Port: COM11

darkmoon3d commented 3 years ago

Tested out using 3678 and managed to get connection and audio but getting noise only. Same setup as before aside that D27==WSEL.

darkmoon3d commented 3 years ago

Swapped pins 25 and 26. Working now. Also plugged PAM8302 onto each stereo out channel.

tierneytim commented 3 years ago

Brilliant, glad it's working now