@skywatch The naughty step is my second home... I understand what you're getting at, played with radio and antennae most of my life although only into the uhf bands, as I found out to my surprise, many have on this forum...
But the problem remains as @Nca78 pointed out the range for a given input power, dodging or penetrating obstacles in the modern domestic environment with composite structures and steelwork becomes progressively more problematic with higher frequencies, it is as you noted yourself rather pernickity.
At my age, pulling my hair out is not an option hence my choice of uhf for the system here, lower power input, longer battery life, keep what hair there is...
Happy New Year to all!
I hope 2022 brings you good times and some fun new IOT projects!
I just downloaded KiCad 6.0 as a present to myself, so I predict some new PCB designs are in my future for 2022 : )
Well, if you just want to look at the model, here it is: http://www.lacrossetechnology.com/c84428-wifi-connected-professional-weather-station
I picked one up yesterday at Costco's bricks-and-mortar store. Not sure whether it will be easy to hack or not.
Some humidity sensors are known to lose accuracy with age. For instance, the Si7021 is known to have this problem. If that matters to you, then the best choice is to pick sensors that have datasheets and which have specs as to their expected longevity or accuracy over time. Then buy from mouser/digikey to be certain you're getting the real thing rather than factory rejects or counterfeits.
For extra insurance, I avoid electrolytic capacitors entirely whenever possible. I buy only 7XR rated ceramic capacitors that are overspec'd. The difference in price is small compared to a failure down the road.
