The Industrial Raspberry Pi Forum

Hello,

I make a small python program and want to make it start automatically after RevPi Core 3 power on.
Could you tell me how to do it. Thank you！

Hi the quick and dirty solution is to put the command to execute your program into "/etc/rc.local" just before line "exit 0".
The better choice is to create a Systemd process which may have dependencies and logging and monitoring capabilities.

Hi Dirk,
I try the second way. I create a myscript.service file.
----------------------------------------------------------------------------------
[Unit]
Description=My service
After=network.target

[Service]
ExecStart=/usr/bin/python3 -u main.py
WorkingDirectory=/home/pi/myscript
StandardOutput=inherit
StandardError=inherit
Restart=always
User=pi

[Install]
WantedBy=multi-user.target
--------------------------------------------------------------------------
And copy the file to /etc/systemd/system

I also create a simply main.py
------------------------------------------------------------
print("PILZ")
-----------------------------------------------------------

However when I use command"sudo systemctl start myscript.service" and enter, there is nothing happen on my terminal.
Could you pls find the reason?
Thank you!

Hey thats a good start. Usually background processes use to print to log files and avoid stdout. There are many options available for the parameter "StandardOutput" have a look here: https://www.freedesktop.org/software/sy ... .exec.html

Hi Dirk,

I want to realize the function when RevPi Core 3 power on, it will go into Python interface and show me the status of running. Then I can monitor the function like the picture.

Something to append:

My real python program will access to Internet service and write to a cloud server. Should the python program start automatically after the network of RevPi is recovered when it is powered on?

Alternatively you can use our RevPiPyLoad service, which will autostart you Python program and monitors it.
Have a look: https://revpimodio.org/en/revpipyplc-2/revpipyload/

You can install a GUI on a computer in your network to send the program to the RevPi and read the logs and things like that

Regards, Sven

Hi Sven,

I have tried RevPiPyLoad service and use revpipycontrol tool to monitor the log of my program. It works well!
Thank you so much!