README.md

Slot machine

Prerequisites

asdf

Redis

https://redis.io/docs/latest/operate/oss_and_stack/install/install-redis/install-redis-on-linux/

Build

Run:

pnpm build

And copy dist/ to the Raspberry Pi.

Services setup

/lib/systemd/system/kiosk.service

[Unit]
Description=Kiosk
After=systemd-user-sessions.service
Requires=redis-server.service

[Service]
WorkingDirectory=/home/pi/projects/oab/
ExecStart=/home/pi/projects/oab/start.sh
LimitNOFILE=4096
IgnoreSIGPIPE=false
Type=simple
User=pi
Group=pi

[Install]
Alias=kiosk.service
WantedBy=multi-user.target

Enable & start services:

sudo systemctl --system daemon-reload # reload configs
sudo systemctl enable kiosk
sudo systemctl start kiosk

~/.config/autostart/chromium.desktop

[Desktop Entry]
Version=1.0
Type=Application
Name=Kiosk
Exec=bash -c "sleep 60 && /usr/bin/chromium-browser --kiosk --incognito http://localhost:8080"

Reboot and check if services are working:

systemctl status kiosk

Raspberry Pi 5

Currently you can't install Redis from apt repository because it's compiled for the systems that have a different page size than Raspberry Pi OS has (16 kB).

You have to install Redis from sourse: https://redis.io/docs/latest/operate/oss_and_stack/install/install-redis/install-redis-from-source/

And configure it properly: https://redis.io/docs/latest/operate/oss_and_stack/install/install-redis/#install-redis-properly

Remember to change the configuration of the kiosk if you use above tutorial without a change of the service's name. You have to replace this line:

Requires=redis-server.service

With:

Requires=redis_6379.service

Raspberry Pi 4

If you encounter this error using Raspberry Pi 4:

rpi_touchscreen_attiny 10-0045: Unknown Atmel firmware revision: 0xe1

You can try to add to /boot/firmware/config.txt this line:

dtparam=i2c_vc_baudrate=50000

It will change the baud rate of the display screen.