Audio class for I2S and direct audio.
- For ESP8266 and ESP32
- With or without SPIRAM
- With or without I2S DAC
- by Erik Palsbo.
- Github: https://github.com/palsbo
- Using library from https://github.com/earlephilhower/ESP8266Audio
Must run at 160mHz
Tools->lwIP Variant->v1.4 Open Source, or V2 Higher Bandwidth
Tools->CPU Frequency->160MHz
Problems with the ESP8266Audio library - ESP32 not yet implemented fully. Will play, but many errors.
Do not use SPIRAM
#define SPIRAM // Use SPIRAM if defined (see schematic later)
#define DAC // Use I2S DAC if defined
To define audio object:
AUDIO myaudio;
myaudio.begin(); // init object
bool x = myaudio.isPlaying() // is object playing?
myaudio.start(char * url); // start playing url
myaudio.start(); // start playing previous defined url
myaudio.stop(); // stop playing
myaudio.setGain(int value); // set gain value 0 - 100
myaudio.loop(); // must be placed in void loop()
SIGNAL ESP8266 Wemos-D1 ESP32
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LRCK GPIO2/TX1 D4 GPIO25 (Red)
DATA GPIO3/RX0 RX0 GPIO22 (Orange)
BCLK GPIO15 D8 GPIO26 (Yellow)
23LC24 SPIRAM
SIGNAL 23LC1024 ESP8266 Wemos-D1 ESP32
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CS 1 GPIO0 D3
SOSIO1 2 GPIO12 D6
SIO2 3 GND GND
VSS 4 GND GND
SISIO0 5 GPIO13 D7
SCK 6 GPIO14 D5
HOLDSIO3 7 3V3 3V3
VCC 8 3V3 3V3
PCB layout and schematic is available in the folder /library/espaudio/hardware
