Provide a clean web interface to see the status of the system and allow me to start and stop filling the pool via the web.Manually add water via CLI or by pressing a button on the enclosure.Notify me if the system encounters an error condition.Notify me when the system stops adding water.Notify me when the system starts or adds water (via Pushbullet, Email or SMS).Monitor my sprinkler system to see if the sprinklers are running.Monitor power use to determine if the pool pump is running.Monitor water level & add water as necessary.Eventually I would be able to do the following: Initially, I had no intention of doing anything other than add water to the pool automatically, but as these things often go, the project grew with a mind of its own. My water temp sensor floats around my pool and my level sensor is nowhere near a power source, so I had to use battery-powered wireless equipment. These Arduino clones use extremely low power – just ~7uA in deep sleep mode which means they would last a very, very long time on two AA batteries. I ended up using four of them in my project: one for the water level, one for the temperature of the water and two in the main system to monitor a combination of internal enclosure temperature, filter pressure and water usage. These units I purchased from Low Power Labs. Since I did not need a Pi for this, I choose a battery-operated, low-power Arduino wireless clone that would transmit the information back to an existing system that I already had in place around the house. Since it was going to be located across the yard from where my Pi would reside, it was going to be necessary to connect it to its own device for reporting. This way people can see several different options. Since I know several other people using the eTape with great results, I am going to leave everything about the eTape in my project and add to it the way I did the dual float setup. I just needed to figure out a way to mount it and make it work correctly.
Since the difference between my low water level and my normal water level is about three inches, this worked perfectly for me.
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