I'm new to Arduino and hope you guys can point me in the right direction.
The project is to build a LCD display that shows the levels in the 3 water tanks in a RV (fresh, grey and black/sewer)
The fresh and grey tanks use floating level senders (240-30 ohms)
The black tank use 4-5 probes. when liquid makes contact with the probe, it completes the circuit.
When a tank level needs to be read, a 12v power must be supplied.
What kind of Arduino board / expansion / LCD do I need for this ?
Hello mikeli2016
I recommend an Arduino NANO, a 2004 LCD and a few resistors for a voltage divider.
Have a nice day and enjoy programming in C++ and learning.
MIND THE GAP
Is it displaying the level on a graph, or as a number?
A bar graph with percentage % would be nice
Does it need touch capabilities?
I would use this as an excuse to buy one of the really cool LilyGo ESP32 modules with a built-in display.
or
It could be done at much lower cost (arduino clone + alphanumeric display would cost about $5), but these are so cool.
Not really since it’s just a one page display
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