Difference between revisions of "Automatic start by using systemd"
(Created page with "The content of systemd unit file /lib/systemd/system/aquarium-ctrl.service as following: <code> [Unit] Description=Aquarium Control Application After=multi-user.target [Service] Type=forking ExecStart=bash /usr/local/src/aquarium-ctrl/aquarium-ctrl-startup.sh [Install] WantedBy=multi-user.target </code>") |
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The content of systemd unit file /lib/systemd/system/aquarium-ctrl.service as following: | The content of systemd unit file /lib/systemd/system/aquarium-ctrl.service as following: | ||
<code> | <code> | ||
[Unit] | [Unit] | ||
Description=Aquarium Control Application | Description=Aquarium Control Application | ||
After=multi-user.target | After=multi-user.target | ||
[Service] | [Service] | ||
Type=forking | Type=forking | ||
ExecStart=bash /usr/local/ | |||
ExecStart=bash /usr/local/bin/aquarium-ctrl-startup | |||
[Install] | [Install] | ||
WantedBy=multi-user.target | WantedBy=multi-user.target | ||
</code> | |||
Upon creation/modification of the unit file, one must run the command <code>sudo systemctl daemon-reload</code> in order to activate the changes. | |||
For starting the control application manually via systemd, one can use the command <code>sudo systemctl start aquarium-ctrl</code>. | |||
The startup script is starting the <code>screen<code> application prior to the control application in order to set the baud rate of the relay boards: | |||
<code> | |||
screen -dm /dev/ttyUSB0 19200 | |||
screen -dm /dev/ttyUSB1 19200 | |||
/usr/local/bin/aquarium-ctrl -f On -r On -u Off -d On -s On -g On -t Off -b On > /dev/null& | |||
</code> | </code> | ||
Latest revision as of 11:02, 30 October 2022
The content of systemd unit file /lib/systemd/system/aquarium-ctrl.service as following:
[Unit]
Description=Aquarium Control Application
After=multi-user.target
[Service]
Type=forking
ExecStart=bash /usr/local/bin/aquarium-ctrl-startup
[Install]
WantedBy=multi-user.target
Upon creation/modification of the unit file, one must run the command sudo systemctl daemon-reload in order to activate the changes.
For starting the control application manually via systemd, one can use the command sudo systemctl start aquarium-ctrl.
The startup script is starting the screen application prior to the control application in order to set the baud rate of the relay boards:
screen -dm /dev/ttyUSB0 19200
screen -dm /dev/ttyUSB1 19200
/usr/local/bin/aquarium-ctrl -f On -r On -u Off -d On -s On -g On -t Off -b On > /dev/null&
