How to make PH Sensor that works with Home Assistant?

[@taxy71]

Thank you! yours videos are perfect! keep it up this way.

[@KPeyanski]

Thanks, will do!

[@lucamarcio4110]

Ciao Kiril, what about creating an aquarium control device that controls temperature, water level, pH value and LED lights all together? It would be great and your tutorial would have a tons of visualizations for sure! Think about it, please! Many thanks.

[@KPeyanski]

Cool idea. I will think about it. Thanks for the comment

[@botialoach1]

Excellent, keep up the great work you are doing , I needed one for my fish tank , when you have time think about a temperature sensor for my fish tank also, many thanks

[@KPeyanski]

Thanks, will do!

[@taxy71]

yes please, im trying also project for my >Aquarium Ive got TDS sensor , Ph sensor (same as you have), and Temperatur sensor DS18b20. it would be really nice to have one video from you. I think a lots of ppl from Hassio do have Aquarium and they would be also happy. same sensors can be for pool in use. THANK YOU

[@osr75]

Nice Video with good idea! I'm trying to do for a pool, the idea is to take an esp32, or similar, power with small solar panel with some small betteries and test PH, TEMP and ORP or clorine. All togheter insde in a floating Clorine device, with the solar panel on the top! with ESPHOME every 30 minuts ( for example) ESP32 with wakeup, send PH+TEMP+clorine level by WIFI to Home assistant, and go to deepsleep andother time for 30 minuts! In the mena time the minisolar panel will give power to the batteries to keep enough energy!

[@JournaldeThomas]

It is really a good idea and I will try to do something similar. But I am wondering how to let the pH meter all the time. Perhaps on the top of the pump…

[@KPeyanski]

Yes, top of the pump is not a bad idea. I may "steal" that from you ;)

[@private2707]

Thanks for the great tutorial!! I was wondering if you went further and pickup a thermometer to read the solution's temperature. PH reading will vary according to the temperature.

[@therevoman]

can you do this and add the temperature sensor as well?

[@kirkk2643]

Did anyone find the solution for temperature compensation?

[@Tntdruid]

Very cool, I need to try that 👍

[@KPeyanski]

Go for it! And let me know what happened.

[@Hautakoskifi-]

I got this to work! And also add Dallas temperature sensor. Using it with aquarium..

[@Hautakoskifi-]

Also making other one for my pool for next summer! I have just take first steps to home automation, esp so on. Thank you for making also good videos. Without good videos, it’s not kinda possible to start to make sensors so on. Good learning, step by step. 😁

[@KPeyanski]

Great to hear. I'm super happy that I was able to help. Don't forget to check my other DIY smart sensor videos. I have a whole playlist of them :) Enjoy!

[@Robert-JanKempink]

Nice! i would like also to see a video about ORP :) i think that would be a little bit harder but possible

[@erwinmikkers8708]

I've been wanting to build this for our pool. Would love to see a project including a chlorine sensor!

[@KPeyanski]

Yes, That would be cool!

[@clairerovic]

@@KPeyanski so cool

[@rolschu1960]

yes chlorine and salinity sensor. Is there any possibility you could do that? Are there sensors on the market? Great videos!

[@botialoach1]

Great work keep it up, can not wait to use my pH sensor in my fish tank but I have a problem after connecting everything together all I get on the display is squares or nothing depending on the position of the potensiometer of the display NO readable letters any help would be appreciated ?

[@kirkk2643]

THANK YOU. Followed your example and it works as expected. However, I noticed that the pH value doesn't represent the reality when the pool water changes temperature. Can you please tell me how to fix that? Couldn't find anything about how to make temperature compensation.

[@scottfinley8955]

Worked for me!

[@KPeyanski]

Well done! Congratulations and welcome to the club!

[@nehajain2974]

You make such great useful tutorials... please please please make a tutorial on how to connect and use multiple Bluetooth speakers with raspberrypi.... please I have been searching how to achieve this since so long. Please consider this humble request

[@KPeyanski]

Thanks, I will think about it!

[@joels7605]

Excellent work, sir.

[@KPeyanski]

Thank you very much!

[@marconugnes6192]

Great idea! Thank you! Do you think is it possible to have multiple sensors? Ph, temperature and chlorine? Marco

[@KPeyanski]

Why not? I think it is doable...

[@marconugnes6192]

One last question.. is it possible to do this project without a screen? For working with esp home it’s a must to have an i2c bus?

[@JoaoGabriel-bk6pn]

Top!!!! This was what I was searching! Is it possible to make it without the screen? Thanks

[@KPeyanski]

Yes, of course

[@bobbymsq]

Great work thanks for sharing, can you help with this cuiosity, what's the use for the 5k potentiometer?

[@ИльяКаратаев]

Hi there, thanks for your effort. I have a question: Do we need to remove the pH meter sensor from the water? For example, if I have a substance that I need to measure, should I periodically remove and clean the sensor?

[@christian1603]

Nice video, just what I needed ! For powering the ESP8266/ESP32 : I presume each micro USB cable with adapter of any phone or tablet may be used for this (are Amps important ?) ? Do you have a link in case I would like to buy one for this project ? Thanks !

[@KPeyanski]

Yes, adapter is needed or any regular usb socket like the one from a laptop/desktop or other similar devices. Amps are not important.

[@robertzioo6508]

Will it work without the screen? I want watch pH in Home Assistant only. Your videos are very useful. Thanks

[@aaryanpour]

Yep, if you monitor the Esp32 log of the device, effectively will do the same i.e. reading the voltage (Ph)

[@xsiimonox]

Hi i have a new version of the ph probe. the SEN0161-V2. There is no potentiometer to turn. how do i calibrate this one? can u help me plase?

[@peripharel]

Worked perfectly! So next step is to control dosing pumps. Anyone have any examples?

[@KPeyanski]

Great to hear! So you can use the #phowned hashtag as well, right? 😉

[@peripharel]

#phowned

[@511Burak]

Hi friend have a question. Is it possible to combine PH Sensor and a temperatur sensor to showing on the same display? Actually have another esp32 board to shown water temp. Is it possible to measure on same esp32?

[@Mimbultonia]

Can’t get this to work 😢 it seems the voltage output from the ph sensor board is very narrow when I finally got it adjusted so it’s not maxed out. Do you think I have a poor board or is there something else I can try?

[@TheAlexdj1971]

Thanks for the video. I have a question. The probe you use has a screwable cap, If I leave this probe in a fish tank full time, can I remove the cap and get instant readings?

[@codahq]

did you try this?

[@onyiercan]

what is the role of potentiometer 5k Ohm?

[@Edu2pc]

Can the sensor be left permanently submerged in water without seriously risking the life of the sensor or its calibration?

[@nyx574]

I was able to it built, but I can't get a stable reading. It bounces all over the place.

[@antoniomazabandes5419]

Hello Kiril: How would we do it if we had two sensors for the display on the i2c screen?

[@botialoach1]

I get nothing on the screen of the ph sensor when stand alone probably I have a faulty pH-probe or board but how to test ?

[@vvkarhu1477]

Hi, how did you put the sensor in water. Can the probe be fully submerged in water so that only the cable comes out from the water? Thanks!

[@KPeyanski]

yes, you can do that

[@vvkarhu1477]

@@KPeyanski thanks!

[@fred7flinstone]

#phowned, although I find the values bounce around so much I doubt it's going to be that useful. I'm finding it pretty difficult to calibrate as well.

[@KPeyanski]

Congrats, once you calibrate is the values still bouncing?

[@Mimbultonia]

I find the dh1 mini is a bit power limited. I already have a dh1 mini running a temperature sensor and when I added a float switch the temperature sensor stopped and I think this was due to power available - do you think it would also run a pH sensor or would it need its own dh1 mini? I’m a bit limited on power sockets and would prefer to run just the one dh1 mini if possible.

[@przemysawkruzoek2130]

#phowned Thanks for sharing this

[@KPeyanski]

Enjoy and congratulations

[@ElvisM1979]

how did you install the sensor in the pool? It is fixed or no?

[@KPeyanski]

fixed, but because my pool is seasonal (I mean I put it in one big box during the winter) the sensor is also seasonal :)

[@blake632]

Hello, when I adjust the potentiometer, the pH value changes, but when I turn the screws on the circuit, it changes very low and I put it in water, it measures the same, I put it in lemon juice, it measures the same, can you please help?

[@blake632]

I have ESP8266 NodemCu V3

[@bencoleman42]

#phowned. Thank you

[@KPeyanski]

Welcome to the club, and check my other DIY video tutorials that I have

[@Fluless]

#phowned. for some reason esphome doesnt work on rpi but the esp webinterface does. thanks for the great tutorial

[@KPeyanski]

Congratulations and welcome to the club :) Enjoy your DIY sensor!

[@woshitomtom]

Hi, do you think it’s possible to use zigbee instead of wifi?

[@KPeyanski]

not sure about that

[@511Burak]

#phowned. Thank you

[@KPeyanski]

Congratulations and welcome to the club! Enjoy!

[@sleepessence7566]

I have built this following it to the letter and triple checked all cables etc. I have two issues 1) there is no display (it staes in the log communication failed) and also the sensor is stuck on 21.57 - even though I have tried adjusting the pots. Finally I connected the main 5k pot but you did not mention what to do with it. Any help would be appreciated

[@KPeyanski]

for the display check the logs during the boot very carefully it is possible your display to have different address. You can also try to remove the address from the code completely as this will try the default address. The 5K pot should be connected and you can use it along with the adjustment knobs on the ph Sensor

[@sleepessence7566]

@@KPeyanski Thanks for the reply. I have checked the logs as carefully as I can but all it states is that the connection to the display failed. I have tried removing the address completely but no avaiul. Is there any way you can direct me as to what to look for in the log. Much appreciated - I really want to say #phowned!

[@Fluless]

Has someone tried using this setup with a tds meter?

[@jjvelar]

Does not the reading oscillate a lot? A median of just 7 values is not enough for my setup

[@KPeyanski]

They are. But isn't it normal when you add lemon to the water or you put the sensor in milk? I saw the sensor to reach 22PH so that means higher median.

[@jjvelar]

@@KPeyanski it oscillates submerged in the same liquid. By the way, maximum pH is 14 so reaching 22 looks wrong to me. Calibration issue?

[@sjaakhijmering4951]

I am doing exactly the same with a salt pool but then the PH reading is way lower than it actually is... I calibrated the sensor with calibration fluid 4.01 and 7.01.. I am now back to doing it manual..:@? do you know what the problem may be? and yes a chlorine sensor would be awesome:)

[@KPeyanski]

OMG salt pool :) That is cool... Do you have waves as well? Unfortunately I don't know what could be the problem.

[@sjaakhijmering4951]

@@KPeyanski today I tried to mix salt into the Calibration fluids still no luck:( Will sent a mail to the supplier I think.. its a normal Intex salt system BTW so not huge pool of something;)

[@peteturcan825]

#phowned 😁 Thank you !

[@KPeyanski]

Great work! Enjoy!

[@peteturcan825]

Thank you for your great work. Now will try to implement a temperature sensor

[@nigelholland24]

made mine but lcd stuck on -3.25 very acidic ,adjusting the pots dont help

[@KPeyanski]

Strange, try adjusting the 5K Ohm potentiometer as well.

[@nigelholland24]

@@KPeyanski all working now must have been a loose wire.

[@KPeyanski]

Great to hear. Don’t forget to leave a #phowned comment, but more importantly - enjoy!

[@Tomasz-i6p]

#phowned dzięki:)

[@KPeyanski]

Congratulations and welcome to the club. Check my other DIY Smart Sensor tutorials

[@nigelholland24]

#phowned

[@KPeyanski]

That is better. Well done ✅

[@PeterNordin]

Do you have the sensor in your pool all the time?

[@KPeyanski]

No, not yet. My cable is too short and I have no place to mount the sensor steadily and safe. My pool is small and temporary (just for the season) and there is a lot of action in it from time to time with a lot of splashing, so I'm still wondering how to do that.

[@farkasroman]

#phowned

[@KPeyanski]

Wow, you are fast :) Good job Roman. Enjoy!

[@aaryanpour]

#phowned

[@KPeyanski]

Congratulations and welcome to the club! You can now try my other DIY smart sensors :)

[@Hautakoskifi-]

#phowned

[@KPeyanski]

Great job! Congrats on the effort and enjoy!