Domoticz

hello im programming a fan for free cooling in the summer but i am not so good in programming in lua

can someone please help me with i think is a simple script.

i have an outside temp sensor and an inside temp sensor and i want it to set a user variable Delta t (like every 5 minutes or so)

so for example: outside temp is 25 degrees and inside temp is 20 degrees i want a uservariable (delta_t) that states: -5 degrees

i can not find a simmular lua script that does only this.only verry complex ones but i'm nog good enough to filter out this pease.

can someone please help me??

Help or code it for you?

Jos

help me on the way jos for 90%

i am realy a dumbass with lua

to make it a little bit more challenging, im temporarely using the weather underground for my outside temp(im buying my own soon).
i beleve you have to filter out the temp value??????