Hello there,

I am just starting to design a simple home greenhouse/hydroponic automated
irrigation system but thought someone on here may already have done this or
knows where to find such a project on the net.  I have little experience
with the electronics but am an avid kit builder and have good mechanical
skills.

In particular, I would like to sense waterlevel, temperature and ideally,
conductivity, and add water, cooling (mist) or heat (electric) and
nutrients based on observed results.

I think that even alerting the need for replenishment of nutrients (ie just
detecting falling conductivity) might be sufficient.

Thanks for any suggestions?

Doug