Hi everyone, I'm trying to make replace a normal LED water level I have in my RV for one with a Arduino and TFT screen. I have currently 4 tanks with a UTP cable (8 levels) and a circuit with leds to see the level in each tank. The idea is migrate this to Arduino and a TFT touch screen to replace th…

When you are attempting to modify an existing system, you really need a schematic of the existing system to begin the work. So do we if you expect help from the forum. Paul

Just to be sure I understand, these are the circuits for your EXISTING RV system? Sure different from mine! Paul

I see. Mine also has 3 waste tanks and one fresh water tank. The display is a push button for each tank, plus a button for the battery voltage. Do you intend to take your entire system out and then add the replacement system, or do you have some other plan? Paul

Both works for me, I don't mind installing everything new because I'm doing a full renovation of the RV interior and isolating the floor from outside so I removed all the tanks to work. How did you do yours? can you please show me? I have a Arduino Mega 2560 with a sensor shield and a Nano with a sh…

Mine is just the way it came from the factory and I don't intend to mess with it. A more fundamental question is: from your description, your proposed system will be powered on continuously rather than like mine which only draws power when I push a button. We camped in the boonies for a week or mor…

No, I won't make it work continuously, I'll make it work only when the motor is running or when a key is on. Anyways I have my RV designed to live off grid with 4 400w solar panels, 4 deep cycle battery of 170ah each, inverter generator of 3000w, etc. so energy isn't a problem for me.

Water Level for 4 tanks

Projects General Guidance

lihuelhg May 2, 2021, 5:48pm 6

This is not my RV system, this is the one shown at the youtube video I linked. Mine is just like this one, just without the buzzer. Water-Level-Indicator-Alarm-circuit-diagram

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Water Level for 4 tanks

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