Raspberry Pi execution on power on.

[Zarkoff]

How does one start a Raspberry Pi 4 program executing when the power is turned on? That is, without using wifi, or a terminal command, just turning on the robot power.
I've tried searching the Internet but obviously not using the correct search terms, or not understanding the threads.

Many thanks,

 

[Delta Prime]

I've tried searching the Internet but obviously not using the correct search terms

Well let's see, I searched quoting your query...

Raspberry Pi 4 program executing when the power is turned on?

Add commands to the file rc.local to run a program when the Pi boots. This is useful for headless mode, where the Pi is powered up without a monitor, and runs a program without configuration.

 

[Zarkoff]

Yes, I tried that. I followed some detailed instructions by modifying the rc.local file, but it didn't work for me.
I was hoping someone who had already done this could show me, in detail, what worked. I now find that rc.local
is no longer recommended but something called systemd is preferred, I'll try that.

Thanks,

 

[Delta Prime]

That's a great idea if it works please be kind enough to tell us, thank you.
If not; I hope this helps.

https://forums.raspberrypi.com/viewforum.php?f=28

 

[bidrohini]

Are you looking for this topic? https://learn.sparkfun.com/tutorials/how-to-run-a-raspberry-pi-program-on-startup/all