DIY Soil Ph Meter || Measure Soil Ph Value using Soil Ph Sensor & Arduino

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In this project, we will make our own DIY Soil Ph Meter using Soil Ph Sensor & Arduino for the measurement of Soil Ph. Soils can be naturally acidic or alkaline & can be measured by testing their pH value. Soil pH is a measure of the acidity or alkalinity of the soil.
Soil is considered a natural medium for plant growth & development. Much research is going on to determine the internal factors of farmers’ crop production failure. One of the factors is the balance of nature in unstable or unfertile soil that inhibits plant growth and plant root development. The Ph is the acidity or basicity of material measured on a scale between 0 to 14. The Ph value lesser than 7 is considered acidic and greater than 7 is considered basic. If the pH scale is 7 then the material is neutral. The most ideal soil conditions for the growth & development of plants are neutral soil. However, some types of plants are still tolerant of soils with slightly acidic Ph with a maximum pH of 5.
While browsing through the internet, I found a great Ph Sensor manufactured by some Chinese R&D Manufacturer. The sensor is manufacture by a company called HONDETEC and you can check it on Alibaba. The sensor works perfectly with Modbus RS485 and the result is highly impressive. So, in this video, we will learn about Soil Ph Sensor & Arduino Interfacing and design our own Arduino Soil Ph Meter. We will display the Soil Ph value on a 0.96″ OLED Display.
Source Code & Purchase Link: how2electronics.com/diy-soil-...
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[@infinitegaming2897]

Your every video is informative the way that you present each and every sensors is mind blowing practically... And I am waiting for your next interesting video

[@Lisalisa-kx9fw]

Each of your videos are just great!!!. Very interesting and creative . . Thank you for sharing a good video!

[@devilalg3974]

Brilliant! The best overview of sensors for the Arduino that I've seen!

[@HowtoElectronics]

Thanks a lot

[@InnovateYourselfashu]

Another great video. Thank you so much for providing such a great and helpful content. ❤️🥰

[@dr.kalyanacharjya6608]

Great One ..Keep it up

[@mramzadg]

Informative video thank you sir

[@electronic7979]

Excellent project

[@aeswiftie9506]

Interesting! Is there a standard measurement on how deep it should be placed on the soil? Hoping for your reply thank you!

[@kampongchamkrong]

Hi, the Ph meter is great for many people in a DIY project. One thing I can't figure out is to calibrate the value to read Ph 7 when the probe is not use. I can get it settle to about 5.5 only using different power supply from the Arduino 5V. If use same as Arduino the value will jump all over the place and can't settle. Using 5 volt from different power bank gives different reading. If I use separate power supply for the sensor the reading can get settle to about 5.5 value regardless of changing supply voltage from 4.5v to 30v. Any idea how to offset the result to read 7 in neutral. Thanks

[@ManishGpt]

Perfectly described each & everything's.

[@HowtoElectronics]

Thanks for being supportive all the time.

[@michaelkreitz]

Why did you use the modbus driver instead of the variable voltage? Seems more complex this way...

[@shubhamsen4572]

Again intelligent girl came for rescue 😀

[@HowtoElectronics]

Thank you😂

[@Ryukushinn]

Amazing

[@justcuong2877]

great i love it

[@Jacusinski.]

Hi, awsome tutorial. Is it possible to integrate this sensor with raspberry pi pico?

[@kvenkat6650]

This sensor can be used for raspberry Pi also Will it work

[@pujiayuagustiani]

What is should be the sensor using rs45 module?

[@syadadnan4769]

Great video as usual!! However, as I had followed every step in this tutorial and use the coding provided, The pH sensor gives a value of 25.6. Have you ever encountered such a problem? *sorry for the bad english*

[@earl9973]

Have you solved your problem?

[@asepsubarkah8360]

Can we get the Arduino mega version?

[@jacob1284]

it is possible to integrate your project tutorial with ESP32 ?

[@MrPavangenius]

Great video! Can we calibrate this sensor for pH from 10 - 12?

[@HowtoElectronics]

Not at all. This is only for ph 3 to 9

[@d.vldymyr3381]

how can i get the address, because i didnt get the file or there is nothing indicated

[@matiasnicolaslopeztoledo2788]

Very good video, thank you very much, but I have a problem, my data stayed at 25.5 and the value did not change, I already checked the example communication protocol of my sesnor, but it does not work. Someone could help me

[@earl9973]

Same issue here, did it worked for you now?

[@earl9973]

Have you solved the problem bro?

[@riverhunt5778]

Same issue...

[@user-qh1wf2nr8d]

The statement that the best ph for plant growth and development is neutral - is incorrect. Different plants require different ranges. In general, slightly acidic soil is better as it improves most plants' ability to absorb nutrients and nitrogen.

[@leonidas047]

Hello, sir. I would like to know if you can help me with my project, which involves ph soil senor and integrating the ESP32 or ESP8266 for WiFi connection and fetching data to Firebase. I'm new to Arduino, so I don't have an idea of how to start or do this. I'm wondering if you can give me a advice and guidance; I would sincerely appreciate it.

[@MrAlsan]

What an animation bro keep going

[@HowtoElectronics]

Yes bro thanks

[@johnreighrosarito7325]

Hi. I dont get it. But the resul for me is always 25.5 ph level

[@vincentngiyimouh5279]

I really get so interested in your works. Please Where can i get this sensor.?

[@HowtoElectronics]

From aliexpress or alibaba you can buy easily.

[@wanalif7998]

my sensor reading stuck at 25.5. help me please

[@Sgros_Exal]

I have the same problem, did you fix it ?

[@diponkarbiawasdipu6722]

same problem.

[@diponkarbiawasdipu6722]

@@Sgros_Exal you solve the problem?

[@diponkarbiawasdipu6722]

@@Sgros_Exal can you help me ?

[@Sgros_Exal]

@@diponkarbiawasdipu6722 I solve it by changing byte values[11] to char values[11]

[@hyunbumcho4985]

Subscription I'd love to. Completion I want to learn from you. Thank you

[@earl9973]

My sensor is only reading 25.5, please help.

[@diponkarbiawasdipu6722]

Are u using nano?

[@earl9973]

@@diponkarbiawasdipu6722 I am using esp32

[@diponkarbiawasdipu6722]

@@earl9973 this code maybe work for nano. Cause i tried same code in arduino mega and uno both... It didn’t work..then i use nano...and it working properly

[@earl9973]

@@diponkarbiawasdipu6722 can I see your code?

[@diponkarbiawasdipu6722]

@@earl9973 i change byte values=[11] to char values=[11]

[@shubhamsen4572]

3 to 9 only😭

[@HowtoElectronics]

Ph of soil doesn't go beyond 9 or below 3.5.

[@shubhamsen4572]

@@HowtoElectronics really?

[@MichaelDomer]

Fake, you cannot accurately measure Ph like that, it needs a special high tech glass sensor (all pro pH testers use it) that also needs to be stored in a special fluid.