Raspiaudio

AUDIO+ AMP+

Speaker.png

 

2x5W Stereo AMP for Onboard/External Speakers

 

  • Any portable radio project where you need built in speaker
  • Power directly your old speaker
  • No extra power supply required
  • Solderless it comes with screw terminals and the 40 pins header is alredy in place.
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Built-in speakers

 

Stereo speaker, expect a volume anq quality as a high end smart phone

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Connect to any old passive speakers

 

Thanks to the 2x5W built-in amp, perfect to use a old pair of speakers from a yard sale. No external power supply needed, but for full power a USB minumum of 2 Amp is recommanded.

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Trigger the onboard red bascklight  button !

 

... or connect an external one using the screw terminal

Let's get technical

 
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if you need a microphone check this model

2. 2x5w Stereo Amplification 2 onboard speaker included

3. DAC I2s 24-bit audio with studio sampling quality

4. Line out stereo 3.5mm jack

5. Onboard red button, 1 status red led

6. Extention screw terminal for external push button, external led

7. Extention screw terminal for external speakers (2 to 8 ohm)

8. Soldered Long female header 2x20 (NO soldering required) Compatible with Raspberry Pi 3, 2, B+, A+, and Zero

Let's install it

- 40pins header is already soldered! but still we added long pin so you can still add other shields on top

For Raspian users (works also for Retropie):

-Insert your Rapsberry Pi Audio Shield in your Raspberry pI then turn it on

-Make sure your audio jack is plugged in to your amplifier

-Open a terminal (yes the black windows thing) and type:

sudo wget -O - script.raspiaudio.com | bash

-say yes for the reboot

-If everything went fine you should here a test sound when tryping this command:

sudo speaker-test -l5 -c2 -t wav

-NEW! : On the next reboot you will be able to control the volume from your desktop or by using the line command tool alsamixer

For references here is the script source.

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For OSMC users:

Just follow each steps and device name of this tutorial

 

Following GPIOs are used by RaspiAudio:

Check the pinout here

-GPIO21 (pin 40)

-GPIO19 (pin 35)

-GPIO18 (pin 12)

-GPIO 23 (Pin 16) - Button

-GPIO 25  (Pin 22) - Led

-Ground pin (connect at least one : pin 6, 9, 14, 20, 25, 30, 34, 39)

-3.3v pin (connect at least one: : pin 1, 17)

All others pin are free to use in your projects!