Hello, I just fried Arduino UNO R3 by my fault and meanwhile I get new one, I need to solve this problem. I am using LCD display (connected to SDA and SCL ports), 4 soil moisture sensors on pins A0 - A3, and other not important parts in my project. Problem is that I wanted to connect Water Level sensor to pin A4, but as A4 and A5 are directly connected to SDA and SCL pins, I cannot use it on any analog pin. So the question is, can I use the Water Level sensor on Digital pin? It should output only 0 or 1, is that right? Thats how I want to use it, only if there is, or is not any water, I dont need the exact water height. Also, when will it output which value (0 when in water or 0 when dry) and does it need to just touch the water or it needs to be like halfway in water to change the state of output? I havent found anything, so you can send links if there is mentioned the Ditigal pin. If anyone could at least maybe try it for me, that would be also helpful.
I moved your topic to an appropriate forum category @dukla.
In the future, please take some time to pick the forum category that best suits the subject of your topic. There is an "About the _____ category" topic at the top of each category that explains its purpose.
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Thanks in advance for your cooperation.
sounds like you are using a Nano - if so could you use A6 and A7
Oh, I didnt state that... I am using UNO R3
UPDATE: I tried this in TinkerCAD, but with Soil Moisture sensor, as none of the simulators have the Water Level sensor... It worked like I want it to, but will it work the same on the WL?
There is another module for that sensor that will convert the output to a digital signal (On/Off). It is basically a comparator with an adjustable reference (potentiometer). My sensors always came with that module. You can also get a I2C A/D to read it.
Can you give me the name of the converter? I only have the ones that come with Soil Moisture sensors and they only have 2 input pins...
There are many available, you can search for "arduino analog to digital converter" You should get a lot of choices. Pick any one that has enough bits. Also be sure you can get the software needed to make it operate.
ANSWER: New R3 came today, the sensor doesnt work without the Soil Moisture converter module, but with it it works as intended on the Digital pin.
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