I agree that lua is the way to go. It has its quirks, but is fairly simple to learn. There are loads of lua examples and tips online, and the Domoticz-specific commands aren't that many so you'll learn them fast.

If you take a simple Blockly example and "convert" it to lua, you'll learn as you go ...

Thanks for the script. Good work!

I use this to run every 5 minutes:

-- Current date as date.year, date.month, date.day, date.hour, date.min, date.sec
date = os.date("*t")
if (date.min % 5 == 0) then
--script
end


Unfortunately the lua execution time seems to drag about a second per hour ...