Can't start socket python script on boot

[gproduct]

I've been using crontab for starting scripts at reboot, but something went wrong.
My .sh file starts at reboot but my socket python script doesn't... i've tried putting it in a .sh file and starting it that way, but no success...
any suggestions?

[Heater]

Use systemd to get things started at boot time.

See instructions in this post: viewtopic.php?f=63&t=138861