Installation

sudo raspi-confi

• Enable SPI

sudo apt update
sudo apt upgrade
sudo apt install -y python3-pip python3-pil python3-opencv python3-smbus python3-numba
sudo swapoff -a
sudo systemctl mask swap.target
sudo systemctl disable --now bluetooth

Execute sudo crontab -e and add

@reboot /usr/sbin/iw wlan0 set power_save off
*/5 * * * * /home/andras/frame/wifi-check.sh > /home/andras/wifi.log 2>&1

Execute crontab -e and add

*/15 * * * * cd ~/frame && python3 display.py -o 90 >> ~/frame.log 2>&1

Reduce journald writes Edit /etc/systemd/journald.conf:

Storage=volatile