Ok, I am grabbing the weather once an hour from the internet from a local wheatherstation. Once every day a calculate the evaporation of the garden.
What would be a good algorith to decide when to water the garden? Anyone already using something? Anyone suggestions?
What I have been experimenting for the last year is:
Start with setting the waterlevel-variable to zero
Every day
Take the waterlevel-variable
add the fallen rain of the day
Substract the evaporation
next day
(watering would have to be done if the waterlevel dropped below zero)
This does not work. The waterlevel keeps increasing. Apparently, over the long run, there falls more rain than evaporates every day. So, should I only take the last days into account? Like
if the total evaporation of the last 5 days exceeds the rainfall
the garden should be watered
end if?
I would really like to know what others are using or suggesting.
Thanks,
Richard
What would be a good algorith to decide when to water the garden? Anyone already using something? Anyone suggestions?
What I have been experimenting for the last year is:
Start with setting the waterlevel-variable to zero
Every day
Take the waterlevel-variable
add the fallen rain of the day
Substract the evaporation
next day
(watering would have to be done if the waterlevel dropped below zero)
This does not work. The waterlevel keeps increasing. Apparently, over the long run, there falls more rain than evaporates every day. So, should I only take the last days into account? Like
if the total evaporation of the last 5 days exceeds the rainfall
the garden should be watered
end if?
I would really like to know what others are using or suggesting.
Thanks,
Richard
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