Tagespaul 2.0

This is my fun raspberry pi project, which is based on the Tagespaul app Originally, this was developed as a birthday present to my girlfriend.

Gist

Hardware

The Tagespaul 2.0 is powered by a raspberry pi 3.0 which is connected to 4 buttons and a chain of LED lights as well as a small sound system. The pi is embedded in a round plastic box (old protein shake) and surrounded by a lantern. This raspberry pi supports wifi, which allows to update the software as well as the sound via SSH.

Software

The Tagespaul loop continuously runs a color program for the LED lights and listens to button triggers. Ones a button is triggered it activates one of 4 different sound options and color programs. The sound is randomly taken from a choice stored in sounds\* and is different every day. The PI checks the date via Wifi.

Color program

Sound program

Set-up

Prepare the PI

Connect a screen, mouse and keyboard to the PI and setup the wifi and enable ssh. Get the IP address of the PI with:

ifconfig wlan0

Copy data to the PI

Install the copy2rpi script on a computer in the same wifi

• Install the requirements to run the copy2rpi.py script with conda/mamba

mamba create --name tagespaul-remote --file requirements.txt

• Add the PI IP address in the .env file.

Run the copy2rpi script with

mamba activate tagespaul-remote
python copy2rpi.py

Each time you update this folder, e.g. when you add/change the sounds, you can update the folder on the PI with this script.

SSH on the PI and setup the script

Activate SPI: https://www.raspberrypi-spy.co.uk/2014/08/enabling-the-spi-interface-on-the-raspberry-pi/

Install requirements on PI

mkdir -p /home/pi/Projects/tagespaul_2.0
cd /home/pi/Projects/tagespaul_2.0/
pip3 install -r requirements_PI.txt
sudo apt-get install mplayer #we use mplayer to play the sounds

Run scrip on start-up

To run the script on PI startup add this text to the /etc/rc.local file with:

sudo nano /etc/rc.local

sudo -H -u pi /usr/bin/python3 /home/pi/Projects/tagespaul_2.0/tagespaul/tagespaul.py > /home/pi/Projects/tagespaul_2.0/tagespaul/log.txt 2>&1

exit 0

And make /etc/rc.local executable with:

sudo chmod +x /etc/rc.local

TODO

• fix sound folder (add empty folder)
• PI pi set
• remove

Ideas

Spotify

Note: does not work on pi yet

Install:

• https://askubuntu.com/questions/1102282/qdbus-returns-an-error-ubuntu-18-04 (qdbus-qt5)
• sudo apt install libdbus-1-dev

Play:

dbus-send  --print-reply --session --type=method_call --dest=org.mpris.MediaPlayer2.spotify /org/mpris/MediaPlayer2 org.mpris.MediaPlayer2.Player.OpenUri "string:spotify:album:4sb0eMpDn3upAFfyi4q2rw" #https://community.spotify.com/t5/Desktop-Linux/DBus-OpenUri-not-playing/td-p/1233569

Help

• https://community.spotify.com/t5/Desktop-Linux/Basic-controls-via-command-line/td-p/4295625

rpi

Install: