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[[File:IMG-8960-interface.jpg|700px]]
We test it base on 2020-08-20-raspios-buster-armhf.img
You must burn the last official Raspbian firmware firstly.
* System update & upgrade
sudo apt-get update
sudo apt-get upgrade
#Maybe you need update linux software source, and the source of the software depends on your country, you can use aliyu sortware source if you are in China. for example:
<pre>
sudo nano /etc/apt/sources.list
#replace file comment with the following comment;
#deb-src http://archive.raspberrypi.org/debian/ stretch main
deb http://mirrors.aliyun.com/raspbian/raspbian/ buster main contrib non-free rpi
deb-src http://mirrors.aliyun.com/raspbian/raspbian/ buster main contrib non-free rpi
save&exit;
</pre>
*Check linux kernal version, and require kernal 5.4 or more version;
sudo uname -a
Linux raspberrypi 5.4.72-v7l+ #1356 SMP Thu Oct 22 13:57:51 BST 2020 armv7l GNU/Linux (this is the result of the above command)
*Setup WM8960 driver
git clone --depth=1 https://github.com/respeaker/seeed-voicecard
cd seeed-voicecard
sudo ./install.sh
#This will take about 30 minutes or so, depending on your network conditions
reboot
* Check play:
aplay -l
<pre>
pi@raspberrypi:~/seeed-voicecard $ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: ALSA [bcm2835 ALSA], device 0: bcm2835 ALSA [bcm2835 ALSA]
Subdevices: 8/8
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
Subdevice #2: subdevice #2
Subdevice #3: subdevice #3
Subdevice #4: subdevice #4
Subdevice #5: subdevice #5
Subdevice #6: subdevice #6
Subdevice #7: subdevice #7
card 0: ALSA [bcm2835 ALSA], device 1: bcm2835 ALSA [bcm2835 IEC958/HDMI]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: seeed2micvoicec [seeed-2mic-voicecard], device 0: bcm2835-i2s-wm8960-hifi wm8960-hifi-0 []
Subdevices: 1/1
Subdevice #0: subdevice #0
</pre>
* Check record
arecord -l
<pre>
pi@raspberrypi:~/seeed-voicecard $ arecord -l
**** List of CAPTURE Hardware Devices ****
card 1: seeed2micvoicec [seeed-2mic-voicecard], device 0: bcm2835-i2s-wm8960-hifi wm8960-hifi-0 []
Subdevices: 1/1
Subdevice #0: subdevice #0
pi@raspberrypi:~/seeed-voicecard $
</pre>
* Record & play test
sudo arecord -f cd -Dhw:1 | aplay -Dhw:1
#Ctrl+C to exit,
#Record to result file test.wav
sudo arecord -D hw:1,0 -f S32_LE -r 16000 -c 2 test.wav
#The result record file is test.wav, Ctrl+C to exit
* Play the record result file
sudo aplay -Dhw:1 test.wav
* How to adjust volumn
sudo alsamixer
[[File:VOICE0HAT-3.png|none]]
if the default sound card is not WM8960, please select it via press F6
* How to use the LED?
Download file [[File:Voice-HAT.zip]], unzip it, then run the following command:
cd Voice-HAT
sudo python pixels.py
* How to use the custom button?
sudo pip install rpi.gpio // install RPi.GPIO library
Download [[File:Button.zip]], unzip it to get button.py file,
<pre>
pi@raspberrypi:~ $ python button.py
off
off
on
on
off
</pre>
Return [[Raspi Voice HAT]]
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