In my case, works followings:
I create file '/volume1/homes/admin/domoticz/scripts/PresenceDetection/check_device_online.py' in Windows and copy it to my Synology
I check its work from putty
9. Making sure the script keeps running and starts running automatically
Create file '/volume1/homes/admin ...

Thanks for tutorial!
I tried to repeat your instruction, but 'VI' is too hardly for me ) , so i manually created file 'check_device_online.py'
And now i have error...

8. Testing the script
After "python /volume1/homes/admin/pi/domoticz/scripts/check_device_online.py 192.168.4.41 2 10 300" in ...

Hi All!

I installed http://www.jadahl.com/domoticz_stable_6/?arch=armadaxp on my Synology.
I installed Package https://www.synology.com/en-us/dsm/app_packages/py3k
And now tried to adjust https://www.domoticz.com/wiki/Presence_detection_(SNMP)

1. How install SNMP on Synology https://www.domoticz ...