git clone --recursive https://github.com/ThomasVuNguyen/WiringPi-Python-OP.git
sudo apt update
sudo apt install build-essential gcc g++  # generic compiler
# or for explicit cross-compiler name
sudo apt install gcc-aarch64-linux-gnu g++-aarch64-linux-gnu
sudo apt-get install python3-dev python3-setuptools swig
python3 -m venv myenv
source myenv/bin/activate
cd WiringPi-Python-OP
./build.sh
cd ..

# Test installation
python -c "import wiringpi; print('WiringPi successfully installed!')"

sudo myenv/bin/python test.py

sudo cp -r luna-oled.service /etc/systemd/system/luna-oled.service

sudo systemctl daemon-reload          # Reload systemd configurations
sudo systemctl enable luna-oled.service   # Auto-start on boot
sudo systemctl start luna-oled.service    # Start service now

sudo systemctl stop luna-oled.service     # Stop the service
sudo systemctl restart luna-oled.service  # Restart the service
sudo systemctl disable luna-oled.service  # Remove from boot startup

systemctl status luna-oled.service        # Current status and recent logs
journalctl -u luna-oled.service          # View all logs for this service
journalctl -u luna-oled.service -f       # Follow logs in real-time
journalctl -u luna-oled.service --since today  # View today's logs only
journalctl -u luna-oled.service --since "2024-01-01" --until "2024-01-02"  # Date range

# Check if i2c group exists
getent group i2c || sudo groupadd i2c

# Add luna to i2c group
sudo usermod -aG i2c luna

# Create udev rule for I2C
echo 'SUBSYSTEM=="i2c-dev", GROUP="i2c", MODE="0660"' | sudo tee /etc/udev/rules.d/99-i2c.rules

# Reload udev rules
sudo udevadm control --reload-rules
sudo udevadm trigger

# Verify permissions
ls -l /dev/i2c-*

# Reload systemd
sudo systemctl daemon-reload

# Restart the service
sudo systemctl restart luna-oled.service

# Check status
sudo systemctl status luna-oled.service

# View logs
sudo journalctl -u luna-oled.service -f