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Linux Service Upgrade
Bennett Lewis edited this page Mar 21, 2020
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Running important scripts as a systemd service on the raspi
Previously there had been some bash script written to start up the Rover-Controller script. Something went wrong with this so it has been changed to a Linux Service that starts on raspi-boot.
- go to /etc/systemd/system
cd /etc/systemd/system/
- create a service file
vim <my_service>.service
- Write configuration for your service (see next section)
The Controller service is in charge of creating a connection to the Xbox controller, reading it's input data, modifying, and sending that data via GPIO on the pi to the servos that drive the wheels of the mini rover.
[Unit]
Description=Rover Controlling script
[Service]
Type=simple
Restart=always
RestartSec=10
User=<YOURUSERNAME> # Check we actually need a username...
ExecStart=<Path/To/Controller/Script>
[Install]
WantedBy=multi-user.target
The Temperature service is in charge of connecting to the Arduino running all of our sensors. A Serial connection is made between the raspi and the arduino, the arduino sends a string containing the read data, which the service logs to a csv file.
[Unit]
Description=Temperature Reading And Logging Script
[Service]
Type=simple
Restart=always
RestartSec=10
User=pi
ExecStart=<Path/To/Temperature/Script>
[Install]
WantedBy=multi-user.target