Dog Trainer
A device that allows dogs to speak. Click on the picture to see the video with the dog-trainer in action
Hardware
Connect buttons to the Rarspberry pi GPIO as shown in the schema to debounce noisy buttons
Operating system
Install Raspberry Pi Imager into your notebook. Launch it and choose Raspberry Pi OS Lite to write into the microSD card
Power on the Raspberry pi and finish the installation process. Log into its console using either:
- ethernet/wifi from your notebook:
ssh pi@raspberrypi - connected keyboard and monitor
- serial port
How to install
Once you are logged into the Raspberry pi console clone the dog-trainer source code into your home directory
git clone https://gitea.virtonline.eu/2HoursProject/dog-trainer.git --depth 1
Go into the newly created directory
cd ~/dog-trainer
Dependencies
The recordings must be edited a little bit so some audio processing tool is needed. Install ffmpeg which will do the job
apt install -y ffmpeg
Configuration
If your sound device is other then USB type then modify and adapt the line hw:CARD=USB,DEV=0 in ALSA config
nano .asoundrc
Install the ALSA config file
mv .asoundrc ~/
Run it!
Just run
python3 dog-trainer.py
Pres Ctrl+c to exit
Make it a service to automaticaly run in the backgroud
If your $HOME directory is other then /home/pi then modify the systemd service file
sed -i "s#/home/pi#$HOME#g" dog-trainer.service
If your username and group is other then pi and pi then also run
sed -i "s#User=pi#User=$USER#" dog-trainer.service
sed -i "s#Group=pi#Group=$(id -gn)#" dog-trainer.service
Install the systemd service file
sudo mv dog-trainer.service /etc/systemd/system/
Reload systemd manager configuration
systemctl daemon-reload
Enable the dog-trainer service at boot time and also run it
systemctl enable --now dog-trainer
If it does not work check logs
journalctl -f -u dog-trainer
Set volume for playback and recording
Launch soundcard mixer
alsamixer
Press F6 to select a soundcard. Find your USB sound device in the list e.g. Jabra Speak 410 USB. Press F4 and use up/down arrow keys to set recording volume and repeat also for the playback (F3). Press ESC fo exit.