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raspberry_boards:raspi-sound-hat [2020/03/03 19:42] admin |
raspberry_boards:raspi-sound-hat [2020/09/01 18:53] admin [Installation] |
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- | ===== Raspi-Sound-Hat ===== | + | ===== Raspi-Sonic-Hat ===== |
- | **! under construction !**\\ | + | {{:raspberry_boards:raspi-sonic-hat.jpg?600|}}\\ |
- | The Raspi-Sound Hat is a sound card for the [[https://www.raspberrypi.org/|Raspberry Pi]]. It is based on the [[https://www.cirrus.com/products/wm8731/|WM8731]] I2S sound chip by Cirrus Logic (former Wolfson). The board design is a hybrid of the [[https://statics.cirrus.com/pubs/proDatasheet/WM8731_v4.9.pdf|WM8731 datasheet]], the [[https://www.mikroe.com/audio-codec-proto-board|Audio Codec Board - PROTO]] and the [[http://www.audioinjector.net/rpi-hat|Audio Injector]]. That is why one can use the [[https://github.com/Audio-Injector/stereo-and-zero|Audio Injector software]].\\ | + | The Raspi-Sonic-Hat is a sound card for the [[https://www.raspberrypi.org/|Raspberry Pi]]. It is based on the [[https://www.cirrus.com/products/wm8731/|WM8731]] I2S sound chip by Cirrus Logic (former Wolfson). The board design is a hybrid of the [[https://statics.cirrus.com/pubs/proDatasheet/WM8731_v4.9.pdf|WM8731 datasheet]], the [[https://www.mikroe.com/audio-codec-proto-board|Audio Codec Board - PROTO]] and the [[http://www.audioinjector.net/rpi-hat|Audio Injector]]. That is why one can use the [[https://github.com/Audio-Injector/stereo-and-zero|Audio Injector software]].\\ |
This sound card features two line inputs and two line outputs.\\ | This sound card features two line inputs and two line outputs.\\ | ||
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---- | ---- | ||
==== Paper PCB ==== | ==== Paper PCB ==== | ||
+ | |||
+ | {{:raspberry_boards:raspi-sonic-hat_12.jpg?400|}}\\ | ||
+ | {{ :raspberry_boards:raspi-sonic-hat_12.zip |}} | ||
+ | |||
+ | ---- | ||
+ | ==== Parts ==== | ||
+ | * **Resistors:** | ||
+ | * 4x 33 Ohm | ||
+ | * 2x 100 Ohm | ||
+ | * 1x 1 kOhm | ||
+ | * 2x 1.3 kOhm | ||
+ | * 4x 5.6 kOhm | ||
+ | * 2x 47 kOhm | ||
+ | * **Capacitors:** | ||
+ | * 2x 22 pF | ||
+ | * 2x 220 pF | ||
+ | * 2x 100 nF | ||
+ | * 2x 1 µF | ||
+ | * 5x 10 µF | ||
+ | * **Diodes:** | ||
+ | * 1x LED | ||
+ | * **Inductor** | ||
+ | * 1x 10µH | ||
+ | * **Cristal** | ||
+ | * 1x 12 MHz | ||
+ | * **Semiconductors** | ||
+ | * 1x LD1117V33 (3V3 version!) | ||
+ | * 1x WM8731 | ||
+ | * **Mechanical:** | ||
+ | * 1x SMD adapter board 28 pins | ||
+ | * 2x pin strip male 1x14 pin | ||
+ | * 2x pin strip male 1x4 pin | ||
+ | * 1x pin strip male 1x3 pin | ||
+ | * 1x pin strip female 1x2 pin | ||
+ | * 1x push button | ||
---- | ---- | ||
==== Installation === | ==== Installation === | ||
- | After connecting the Audio Injector to the Raspberry Pi change some configurations, in: | + | After connecting the Audio Injector to the Raspberry Pi some software should be installed.\\ |
+ | First you have to download the deb package from [[http://forum.audioinjector.net/viewtopic.php?f=5&t=3]]. | ||
+ | $ wget https://github.com/Audio-Injector/stereo-and-zero/archive/master.zip | ||
+ | Unpack it: | ||
+ | $ unzip master.zip | ||
+ | And install it: | ||
+ | $ cd stereo-and-zero-master/ | ||
+ | $ sudo apt install ./audio.injector.scripts_0.1-1_all.deb | ||
+ | Change some configurations, in: | ||
$ sudo nano /boot/config.txt | $ sudo nano /boot/config.txt | ||
- | Comment out: | + | Set in comment: |
# dtparam=audio=on | # dtparam=audio=on | ||
And type in: | And type in: | ||
+ | # Enable audio (WM8731) | ||
dtoverlay=audioinjector-wm8731-audio | dtoverlay=audioinjector-wm8731-audio | ||
ctl + o for saving, press return and ctl + x to leave.\\ | ctl + o for saving, press return and ctl + x to leave.\\ | ||
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//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/]]//\\ | ||
+ | |||
+ | ---- | ||
+ | ==== Install the Shutdown Button and the LED ==== | ||
+ | |||
+ | Download the Python script: | ||
+ | $ wget www.dernulleffekt.de/programme/scripts.tar.xz | ||
+ | And unpack it: | ||
+ | $ tar -xf scripts.tar.xz | ||
+ | Go to in the script folder | ||
+ | $ cd /home/pi/scripts | ||
+ | Change owner & rights | ||
+ | $ sudo chown root:root shutdownbutton.py blink.py | ||
+ | $ sudo chmod 755 shutdownbutton.py blink.py | ||
+ | Create the autostart: | ||
+ | $ sudo nano /etc/rc.local | ||
+ | Write before "exit 0": | ||
+ | | ||
+ | # run reset and shutdown script and the blink script | ||
+ | printf ">>>>>>>> Starting shutdown aund reset button on GPIO 27 and a blinking LED on GPIO 04" | ||
+ | /home/pi/scripts/shutdownbutton.py & | ||
+ | /home/pi/scripts/blink.py & | ||
+ | |||
+ | To save and leave press: CTRL+O, Enter, CTRL+X\\ | ||
+ | Reboot: | ||
+ | $ sudo reboot | ||
---- | ---- | ||
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[[https://github.com/Audio-Injector/stereo-and-zero]]\\ | [[https://github.com/Audio-Injector/stereo-and-zero]]\\ | ||
[[https://learn.adafruit.com/adafruit-max98357-i2s-class-d-mono-amp/raspberry-pi-usage]]\\ | [[https://learn.adafruit.com/adafruit-max98357-i2s-class-d-mono-amp/raspberry-pi-usage]]\\ | ||
+ | [[https://alsa-project.org/wiki/Main_Page]]\\ | ||
---- | ---- | ||
==== License ==== | ==== License ==== | ||
- | The Raspi-Sound Hat was designed by **Wolfgang Spahn** 2020.\\ | + | The Raspi-Sonic-Hat was designed by **Wolfgang Spahn** 2020.\\ |
It is licensed under a [[http://creativecommons.org/licenses/by-nc-sa/4.0/"|Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License]]. | It is licensed under a [[http://creativecommons.org/licenses/by-nc-sa/4.0/"|Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License]]. | ||