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raspberry:audio_injector [2020/02/27 16:28]
admin [I2S Pins] 		raspberry:audio_injector [2020/03/03 16:15]
admin [I2S and I2C Pins]
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 Reboot your Raspberry Pi: Reboot your Raspberry Pi:
    $ sudo reboot    $ sudo reboot
-\\ + 
-After the reboot download:+---- 
 +==== Alsa Mixer Settings ==== 
 + 
 +[[https://github.com/Audio-Injector/stereo-and-zero]]\\ 
 +There are two reference alsa mixer files which will allow you to setup default output with either line input or microphone input : 
 +Download:
    $ wget https://github.com/Audio-Injector/stereo-and-zero/archive/master.zip    $ wget https://github.com/Audio-Injector/stereo-and-zero/archive/master.zip
 Unpack it: Unpack it:
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 ---- ----
-==== I2S Pins ==== +==== I2S and I2C Pins ==== 
-Beside the power and ground the I2S bus needs the following pins: +''Monospaced Text'' 
-   GPIO 18 (Pin12)    BITCLOCK; + 
-   GPIO 19 (Pin 35)   LRCLOCK; +The following pins are used by the sound card, don't use them for anything else!\\ 
-   GPIO 20 (Pin 38)   DATA IN; +Beside the power (5V and 3V3) and ground (GND) the I2S bus needs the following pins: 
-   GPIO 21 (Pin 40)   DATA OUT;+   GPIO 18 (Pin12)    BIT CLOCK (BCLK); 
 +   GPIO 19 (Pin 35)   IN and OUT LR CLOCK (DACLRC and ADCLRC); 
 +   GPIO 20 (Pin 38)   DATA IN (ADCDAT); 
 +   GPIO 21 (Pin 40)   DATA OUT (DACDAT);
 And the I2C bus needs these pins: And the I2C bus needs these pins:
-   GPIO 02 (pin 03)   SDIN +   GPIO 02 (pin 03)   SDIN
    GPIO 03 (pin 05)   SCLK    GPIO 03 (pin 05)   SCLK
  
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 </html> </html>
  
-graphic from: +//graphic from: 
-[[https://hifiduino.wordpress.com/2014/11/13/raspberry-pi-b-digital-audio/]]\\+[[https://hifiduino.wordpress.com/2014/11/13/raspberry-pi-b-digital-audio/]]//\\
  
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