Anybody that can tell me how to accomplish this easy thing.
Got temperature sensor outside and inside, and a switch that is turning on and off a fan.
If outside temp is below 19 celcius and inside is over 20 celcius turn on fan if its off but only between 10:00 and 22:30 otherwise turn of fan of its on.
With this in place I think I will be able to understand a lot better how it works.
Thanks in advance