systemd:
  service:
   raspberrypi_exporter:
      Unit:
        Description: Prometheus exporter for Raspberry Pi metrics
        Wants: raspberrypi_exporter.timer

      Service:
        ExecStart: /usr/local/sbin/raspberrypi_exporter 
        Type: oneshot
        
  timer:
    raspberrypi_exporter:
       Unit:
         Description: Timer for the Raspberry Pi Prometheus exporter
       Timer:
         OnCalendar: '*:*:0,15,30,45'
       Install:
         WantedBy: timers.target