[Unit] Description=Read serial port and send sensors measurements to MQTT broker After=syslog.target network.target [Service] Type=simple User=serial2mqtt Group=serial2mqtt EnvironmentFile=-/etc/default/serial2mqtt ExecStart=/opt/arduino-sensors-toolkit/serial2mqtt.py $DAEMON_OPTS KillMode=process TimeoutSec=30 Restart=no [Install] WantedBy=multi-user.target