Auto run c program in Rpi 3

[goutam]

I have a c program, I compiled it and created an object file. I need that to run automatically when I boot up. can anyone please help me in detail steps. I tried few things which I found in internet but none of them worked fine.

thank you.

[allfox]

If you just want it to run, nor more requirement, then you could edit /etc/crontab, add some line like

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@reboot root    /bin/echo none > /sys/class/leds/led1/trigger

This would execute "/bin/echo none > /sys/class/leds/led1/trigger" as root when reboot.

If you want something like "run my program after networking is ready", then you might need write a real systemd service unit.
Or wait 60 seconds or so before execute your program:

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@reboot root    sleep 60;/bin/echo none > /sys/class/leds/led1/trigger