Voice HAT Software

 ⚠️  Deprecated: This page is outdated and may contain inaccurate information. It is kept for reference only. 

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:

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;

• 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

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

• Check record

arecord -l

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 $

• 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

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,

pi@raspberrypi:~ $ python button.py
off
off
on
on
off

Return Raspi Voice HAT