2020 will be the year you'll get what you want ! ;-)

Hi John! FYI, the preorders for our EC/PH smart auto-doser are ON, you can take a look on KickStarter right here: kck.st/39ku9p5 Enjoy! ✌

hi, you get wiring in this kind of tutorial lastminuteengineers.com/ds18b20-arduino-tutorial/ and start using blynk with this tutorial : kzfaq.info/get/bejne/nM2qqdKS08WXj6s.html

Hi, don't know, you have to test them.

Hello, for us, DFrobot do not recommend to use the probe continuously in the water. For more info, go to DFrobot forum to post same question ;-)

Hello, what do you mean? have you seen the whole video ? Calibration is explain here kzfaq.info/get/bejne/e9d2qphnltazZZ8.html

Not at all. The kit we make is reliable.

hi @wildan we never test it but we think you can try this circuit and probe to read disolved oxygen with esp32 atlas-scientific.com/dissolved-oxygen/

Hi, the V1.1 need 5v power supply www.dfrobot.com/product-1025.html

hello @Manas Rath, you can find the answer by search on google ADS1115 + ESP32 microcontrollerslab.com/ads1115-external-adc-with-esp32/ you have the wiring explanation here too kzfaq.info/get/bejne/pJd1dd1-qbatZ2g.html

Hi you Can find what u need with Google dude. www.google.com/search?q=ph+clean+solution&oq=ph+clean+solution

Hi there we make patch about this trouble. you can try the new release : with ADC use: github.com/GreenPonik/DFRobot_ESP_PH_WITH_ADC_BY_GREENPONIK/releases/tag/1.2.3 without ADC: github.com/GreenPonik/DFRobot_ESP_PH_BY_GREENPONIK/releases/tag/1.1.1

Hi Thomas Hummitzsch , you cannot use the library with old version.

@@greenponik any library suggestions? if i use V1.1 df robot ph meter with esp32

@@abib2604 hello, sorry but no because we never use the v1.1 df robot pH sensor but you can find an arduino sample code here www.dfrobot.com/product-1025.html

yeah you can! it's why we have build a library to permit use with ESP32. We talk about the SEN0161-V2 probe and circuit.

Hello, sorry but it's been a very long time we stopped using this kit and the githup code should be reviewed by someone willing to do it.

You only have to calibration the sensor every 1 month or 2. Just keep the same microcontroller to read the PH so you don't have to calibrate again (calibration values are stored in EEPROM so once it's been done, the ESP will keep those information)

Hi, sorry but we've never tried with STM unfortunately.

hi, which board do you use?

As long as you clean your sensor like every two weeks and check it's calibration i'll do. Industrial on is recommended for continuous usage.

Hello @marco, calibration values are stored in the EEPROM of the ESP32 so if you flash the firmware and change nothing in EEPROM addresses values still safe stored.

Hi! as you can see here github.com/GreenPonik/DFRobot_ESP_PH_BY_GREENPONIK#compatibility the esp8266 board is not supported. There are some differences are about eeprom management. On the repo's issues we have already discusse about this and you can find some responses about your question here: github.com/GreenPonik/DFRobot_ESP_PH_BY_GREENPONIK/issues/1 Regards

@Marco! You read theses values after calibration? if yes, maybe calibration solutions are too old or your probe. When you calibrate you have to read the same value during calibration and after calibration.

Hello, sorry but it's been a very long time we stopped using this kit and the githup code should be reviewed by someone willing to do it.

Hi, sorry we don't use those anymore.

If the accurate the your probe drifted, you have to calibrate it an other time, we advice user to calibrate probe + circuit every month. If after calibration the probe still drift, maybe your probe is dead. DFRobot says the probes cannot be used in water everytimes because it's only for labs uses.

Hello, sorry but it's been a very long time we stopped using this kit and the githup code should be reviewed by someone willing to do it.

Hello @Yash, you should give us more details about your issue on github directly => github.com/GreenPonik/DFRobot_ESP_PH_WITH_ADC_BY_GREENPONIK/issues

Hi! you can email us at contact@greenponik.com or contact us directly through our social networks 😉

Hello, no, they make a "pro" version for that. You can check their website.

Did you find the answer to your question? I have the same problem! :-( I followed the other video example, for the EC Meter... still does not work.

Hi, don't know what can be wrong in your case as you have to be in front of the circuits to see what's happening. Basically, if your readings are too high in voltage, decrease the ADC gain, if the readings don't change when you put the sensor in different liquids, check the adc wiring or even replace the adc.

kzfaq.info/get/bejne/mp2PjLaHrL-VZI0.html

Hi Ahmad, unfortunately you cannot use this system out of the box. Because, buffers solutions used to define acid and neutral points are pH4 and pH7. If you're able to write code, you can fork the lib and replace the neutral point value on the lib or define a third point as pH10 to get the corresponding voltage value on the circuit.

@@greenponik Alright, but btw If I want to add Ds18b20 waterproof sensors, How can I modify the code? Can you give me the complete code if I wanna add ds18b20 sensor into this ph sensor?

im requesting that as well. have you figured anything out yet?

Not sure to understand well you question. We use clearing solution like thoses: www.google.com/search?q=ph+clean+solution&oq=ph+clean+solution

Hello, sorry but it's been a very long time we stopped using this kit and the githup code should be reviewed by someone willing to do it.

Hi, it's better to use an external power source as the ESP doesn't like to be disturbed.

Hi Mate, never tried with this one, you'll have to experiment!

Any luck? I'm getting 0.00 voltage with the 169.

Hello, you can find some python library for raspberry on our github

Hi! we don't use MQTT but you can find some examples through google ;-) like this: www.valvers.com/open-software/arduino/esp32-mqtt-tutorial/

Did you get it to work with home assistant? I'm also stuck at the point that i see the values but can't figure out how to send them over

Hi, for this moment nope! but the device have REST API and graphql to be connected with any smart home system. You maybe have to develop plugin to wrap our api in the smart home system.

I have added mqtt to my setup now if you still need the code I could send it, it's not pretty but working 😅

@@Bartlebyxx thx ;-) in the futur maybe we'll need it

Hello @omassi, the SEN0161-V2 can be supply in the range 3.3~5.5V www.dfrobot.com/product-1782.html

Hello, sorry we don't use it at all.

@@greenponik thanks for ur reply, and now I used SKU sen v2 bro! :)

K4NGR3Y it’s DFRobot calibration solutions provided with pH probe in the SEN0161-V2 kit we can think it’s pH 7 and pH4 liquids 😂

The one that you use to clean the probe?

@@K4NGR3Y You can use this kind of solution to store your PH sensor (and sometime revive it too): growstore.fr/calibrage-entretien/449-solution-ph-probe-refill-storage-300ml-growthtechnology-5025644913962.html

To check if the sensor still read PH 7 when inserted in a PH 7 solution. if not, the code will correct it.

@@greenponik some times if sensor doesnot read PH 7 solution as PH 7 then the problem maybe with the sensor but not with the code.is that case occur?

The library works only with DFRobot probe because the output voltage level of the SEN0161-V2 is different of your example. Maybe you can fork the library from github and adjust the range of voltage values in the header github.com/GreenPonik/DFRobot_ESP_PH_BY_GREENPONIK/blob/master/src/DFRobot_ESP_PH.h The procedure is: Wiring the circuit check the ADS channel is good Put probe in first calibration solution and get the voltage value and the voltage value set it has the first ref on the header Then make the same for the second calibration solution. To be sure check you get the same read value after second calibration You can use the example to start from good way github.com/GreenPonik/DFRobot_ESP_PH_BY_GREENPONIK/blob/master/example/DFRobot_ESP_PH_BY_GREENPONIK/DFRobot_ESP_PH_BY_GREENPONIK.ino

Look in description 😏

@@mickaellehoux6606 I didn't notice it ... Thank you Can the acidity of olive oil be measured by the same circuit? What is the acidity value of the oil?

@@mohamadmohamad-te5sl sorry i dont know