Raspberry Pi Analog Water Sensors ADC Tutorial

hi,
Could you connect 4 pressure sensors at the same time? like monitoring 4 air bags suspension for a car.
Thank you !

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Hi, thanks for the video absolutely loved it. What can I do if I want a more precise readout on the LCD, closer to the master gauge

Can you measure the sensor input voltage using multimeter? will it give the same voltage as what displayed in LCD?

Hi. I know this is older but it’s a great video. Thank you

Please make more videos.

Superb explanation!

hello, i want to monitor the waterlevel in my rainwater bassin, i want to do that with a pressure sensor, in your tutorial you stated that the psi sensing range must be lower than the 200 psi range u use, how much lower and where can i order one

website is not working!!!!!

I am new to this and trying to learn. I need to keep track of pressure on a filter so your build it perfect for my needs. The question I have is why not use channel 2 on the MCP 3002?

Thankyou ,,, this is awesome tutorials. .

Awesome!! tutorial. Just what I needed to get started.

Would this work with a Resistance Level Sender for a water tank? The type with the float on that changes resistance as the float moves up or down?

Thank you sir..!! Absolutely loved it. Quick question, will multiple pressure sensors work?

great video new to all this i have connected the ads1115 to a raspberry pi 4 using the i2c pins and connected to water sensor to a0. i am also using the adafruit single ended exsample to run the sensor. this works well to show all is ok but i want to use the code you are running. how easy would it be to set that up?

Awesome Video. It really helped me get started using the pressure transducer/sender. Any chance you could do another video showing the programming for the updated Adafruit Libraries and Python 3x? I have it working but I am not that great with programming and I can't figure out how to make my sensor more accurate the way you did with the line voltage equation.

Is there way to send a email with a text message that says you have water leak or something similar?

Hi, I have another question regarding the choice of ADC... say for the project I mentioned I wanted to be able to analyze the signal from the microphone to observe a certain peak. Are there any relevant attributes I should take into account when choosing my ADC or is MCP3002 an all around good option. My setup would be the same as yours but instead I would be connection a microphone to the analog input of the ADC.

Hi rdagger, I was wondering if this could be used to convert inputs from a microphone? I don't have an exact setup at the moment but the idea is that the microphone would be used to detect an object and so past a certain threshold the mic would give us a 1 for example. Edit: I looked a bit into MEMS microphones that can output a digital signal so would we be able to use that as a direct input?

Great work and well explained. Did you have a chance to work with high temperature sensors (90C/210F)?

So I'm using an ADC1115 and I have it wired exactly as you do except Im using an capacitive soil moisture sensor. When I do i2cdetect -y 1 there are no values in any port. I installed the adc library exactly as you did. Is there something i'm missing?

This is very thorough. I have a lot to learn but your videos and website are so helpful. Thank you

Thanks for the awesome videos, perfect pace and detail. I have an analog temperature probe but it only has two wires. I can see resistance change with water temp but not sure how to wire it using adc without a signal wire.

Another great video! The linear equation helps to explain the relationship of your results. Excellent work.

Your video convinced me to take the plunge! Thanks! I wired a RaspberryPi up to the ADS1115. `i2cdetect -y 1` sees the unit on 0x48. I connected the moisture sensor to A1 on the ADS1115. When I issue `i2cget -y 1 0x48 1` I keep getting 0x85, whether or not the unit is in soil or otherwise. I must be missing a step? Possible to get a reading at the command line? Thank you!

I'll model my code after yours to use with my mcp3008 to control an interface circuit which will control a 5vdc water pump contingent upon readings from a capacitive soil moisture sensor

Hi can you help me? I'm having a hard time to the connections of my ec and ph sensor i'm using the mcp3008

First time I’ve ever seen someone do their docstrings the same way I do! Really thorough thanks!

This is just the most perfect explanation I have ever seen...
Thank you so much for this effort

good videos, very informative

Hi there rdagger68,

I just watched your video about this pressure sensor (awesome results :) ) but I was just scratching my head why on earth you used those two other circuits.
I use the MCP3008 to monitor my 12V backup battery state of charge or if it is being charged, and the PI's 5V (unregulated) rail voltage from the 3.3V (regulated) line used as ref.

I used a voltage divider (which is only 2 resistors) per channel to reduce my "12V" to maximum 3.3V and and the "5V" to maximum 3.3V.

If you put a 10k and a 2.7K resistors in series and you wish maximum 3.3V from the divider, it can handle up to 15.52Vs from the battery bank. Similarly for the 5V rail I used 10K and 9.1K resistors ending up with maximum measurable voltage of 6.92V on the 5V line.

The S line of the pressure sensor could have gone to this exact voltage divider and using of some math after reading out the bits from the MCP3008.

If you intend to build voltage dividers please avoid too little resistors (they pull lots of amps) and avoid shitty tolerance resistor bands.

Regards,
Sándor

Are there Node-Red Nodes that will work with these sensors?

Can i measure also with 4 pressure sensors and control relais with it?🤔🧐

Voice is too low

On aliexpress the price for a mcp3008 is the same as for an arduino nano. Even less if you choose an attiny85 :-) I see that the ADS chip is a bit cheaper and offers 16bit A/DC, which would be superior to the 10bit of the arduino.

Outstanding video!!

already done it using raspi and rework it using arduino (temp and pH). I took time to think of em...why would i kill a bug with a bomb, if i could kill it with a sprayer. raspi is "almost there", u can't use it to do extreme processing such as machine learning and advance image processing, but still it's a "PC", but also it is too much CPU for temp, pH, PWM, etc. maybe they'll do sometin about raspi 4

if i am right its better and easy to do this project with arduino isn't it ? can anybody correct me if i am wrong ? cause i dont see why using a very strong device like raspberry instead of arduino

Well done buddy, very informative

how to used Gas sensor mq-137(ammoina sensor with pi3) analog sensor.

I have a question...If I do not use bi directional in ADS1115, can it?

Thanks for this great tutorial. Could you share which pressure sensor you have used?

Can i use MCP3008 for this project.... Please reply it's urgent.........

Could this be a way to go for measuring oil temp and pressure in an older car engine? So totally noob on this that I don't even own a pi yet

I'm really enjoying all of your content. Thanks for the amazing work! Can you tell me which LCD screen you are using in this tutorial? I purchased one with only 2 pins for SDA and SCL and I'm having trouble figuring out how to integrate into your tutorial as I'm a beginner.

That moment when you realize you're not quite ready to start your water monitoring project. Great detailed video, thank you.

you are a master budy!

I have a question How i can have output in print statement.
the value of psi.