I’m a bit out of my depth on this one, and would like some input. I need to monitor basement water issues (ideally pump activity {current sensor}, pit water level, and 2 moisture sensors for pit overflow & stairway leak. my experience with sensors and embedded systems is limited to setting up a Raspbery PI nextcloud server, using GPIO pins & a simple python script to activate the case fan at a certain system load level. The goals of the project are reliability, energy efficiency, low & easy maintenance. Also this must be a WIRED solution, no wi-fi, bluetooth etc. The thoughts are: 1) buy a second RPI, locate it near the pump pit, all sensors connect to it, all processing and web interface run off it. 2) Buy a Arduino, mount at the pit and collect sensor data, some sort of data / network connection between it and my RPI server, which would do all the processing (web interface, pump activity logging & event alert emails)

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I know more about the RPI, but its a full linux system, so there is admin stuff to do there (updates, backups) but I know very little about Arduino, is it a full OS, does it need admin attention or can it be just a data converter /collector for the PI, meaning I have no extra sysadmin duties? Also power consumption PI3 vs arduino? I also have no idea which draws more power, a PI3 or the appropriate Arduino for the project.

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