A few years ago I moved house and became the owner of a nice backyard with a garden.  However with early arrival of summer, I quickly discovered the challenge of keeping everything alive!  As holidays and heat-waves approached it became pretty clear we needed an automated watering, and one that could keep track of tank levels to avoid running the tank dry and damaging the water pump. Add to that the fact I'm always out to save a buck, I was inspired to do a little IoT project... Final set-up, sorry about the spoilers I iterated on this idea for quite a while with ideas ranging from full computer controlled watering system to something much simpler.  In the end I decided my requirements were: Have a watering system with an automatic timer Be able to switch off the pump remotely  Be able to check tank levels remotely I eventually realised that two of these would be much easier (and probably no more expensive) to buy as off-the-shelf components but there was still and IoT proje