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raspberry_boards:raspi-sound-hat [2020/03/03 19:42] admin |
raspberry_boards:raspi-sound-hat [2020/09/01 19:25] (current) admin [Alsa Mixer Settings] |
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| - | ===== Raspi-Sound-Hat ===== | + | ===== Raspi-Sonic-Hat ===== |
| - | **! under construction !**\\ | + | {{:raspberry_boards:raspi-sonic-hat.jpg?600|}}\\ |
| - | LOL | + | |
| - | 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.\\ | ||
| Line 17: | Line 16: | ||
| ---- | ---- | ||
| ==== 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: | + | Put 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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| ==== Alsa Mixer Settings ==== | ==== Alsa Mixer Settings ==== | ||
| - | [[https://github.com/Audio-Injector/stereo-and-zero]]\\ | + | To enable the audio output: |
| - | There are two reference alsa mixer files which will allow you to setup default output with either line input or microphone input : | + | $ amixer set 'Output Mixer HiFi' on |
| - | Download: | + | Go into the folder: |
| - | $ wget https://github.com/Audio-Injector/stereo-and-zero/archive/master.zip | + | $ cd stereo-and-zero-master/audio.injector.scripts-0.1/ |
| - | Unpack it: | + | To setup the output run the following command: |
| - | $ unzip master.zip | + | In combination with the microphone input: |
| - | go into the folder: | + | |
| - | $ cd stereo-and-zero-master/ | + | |
| - | and run: | + | |
| $ alsactl --file asound.state.MIC.thru.test restore | $ alsactl --file asound.state.MIC.thru.test restore | ||
| + | or in combination with the lines input: | ||
| $ alsactl --file asound.state.RCA.thru.test restore | $ alsactl --file asound.state.RCA.thru.test restore | ||
| + | to check the alsa setting: | ||
| + | $ alsamixer | ||
| ---- | ---- | ||
| Line 90: | Line 133: | ||
| //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 | ||
| ---- | ---- | ||
| Line 100: | Line 168: | ||
| [[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]]. | ||