I sincerely appreciate your help with the project today sir even u don't know who am I . Thank u for helping me to accomplish my goal. I wanted to express my gratitude for your training today.You are the best.I wish you the best of the best with your career and your life.God Almighty will continue to favour you and crown all your efforts with success...!.i can't express ur help in words sir thank you so much.
Hello sir I already have PLC indicator for pH and temperature and it has output for the same But I don't know how to read or datalog it in my PC I am a biology graduate please can you guide me how can I datalog my reading of my pH and temperature with or without Arduino
Hello sir , I'm trying to build a project using ph. But I'm having a difficulty with the code. Can you please help. I connected a motor pump to the esp along with ph sensor. So when the ph sensor value decreases the motor pump should turn on. In the code I tried to implement if else but i am getting an error saying "conversion from int to constString is ambiguous" Can you please tell me a solution sir ?
Hi, I have already made a video on PH sensor interfacing with New Blynk IoT. You can take help from this video. And if there is some issue, let me know.
In file included from C:\Users\Umer Ahmed\Downloads\PH_Sensor_ESP32\PH_Sensor_ESP32.ino:13: C:\Users\Umer Ahmed\Downloads\PH_Sensor_ESP32\BlynkEdgent.h:17:2: error: #error "Please specify your BLYNK_TEMPLATE_ID and BLYNK_DEVICE_NAME" #error "Please specify your BLYNK_TEMPLATE_ID and BLYNK_DEVICE_NAME" ^~~~~ exit status 1 Compilation error: #error "Please specify your BLYNK_TEMPLATE_ID and BLYNK_DEVICE_NAME" i am getting this error how can i resolve it, i have already define the both but getting same error again again
I think, you haven’t seen the video properly. There is need if headers in the sketch folder. Below video link may help you to troubleshoot- ruclips.net/video/EPhY_hDozeo/видео.html
@@SMEDehradun i have check the sensor directly, which gives me readings but when i am using your code it start only showing 0.00 reading and nothing else although all the things are correct, then what would be probable reason that why it is showing only 0.00, further more i try to change the pin v0 to v13 on blynk but that not also works.
I am using esp8266 nodemcu. But i got this error sir. Help me sir. Need this for my uni project \BlynkEdgent.h:16:2: error: #error "Please specify your BLYNK_TEMPLATE_ID and BLYNK_DEVICE_NAME" 16 | #error "Please specify your BLYNK_TEMPLATE_ID and BLYNK_DEVICE_NAME" | ^~~~~ exit status 1 Compilation error: #error "Please specify your BLYNK_TEMPLATE_ID and BLYNK_DEVICE_NAME" .
@@SMEDehradun hi sir i got the same problem. I already write the blynk credentials in the program but it's #define BLYNK_TEMPLATE_NAME instead #define BLYNK_DEVICE_NAME. can you help me with that?
Watch the video properly, then you will find, all the headers must be inside the program folder. Or you can connect your board to blynk through alternate methods. Below video may help you ruclips.net/video/c5u6-Th1sI4/видео.html
Hello sir, I am using the ESP WROOM 32 board. I want to ask what should I define in my code. In your case, you use NodeMCU board so you put #define USE_NODE_MCU_BOARD
Have you connect your board to wifi using blynk IoT app? ruclips.net/video/EPhY_hDozeo/видео.html Go through this video if you are getting any problem.
@@SMEDehradun Thank you for this video sir. The one thing I didn't do is open my mobile data that's why I can't connect my board to the wifi using blynk app
My voltage/PH from the ph sensor is hard changing from 6.87-7.3 But why ? The input voltage from the arduino are 5Volts constantly. Please help I need to measure 24/7 but sometimes the ph value are to high or low
Hi, If you have already calibrate the PH sensor then it may issue of the bit resolution and accuracy in the ADC. SoYou can do one thing, read the PH sensor in Arduino and then send that data to NodeMCU ESP8266 serially. This link will help you to access the data serially from Arduino to ESP8266. ruclips.net/video/V7l2ZWmMOQY/видео.html
Hi , I need to build this ph sensor. Could you please help me on this project. I’m not an expert on this topic. Need your support. How may I contact you.
the selected serial port serial.serialutil.SerialTimeoutException: Write timeout does not exist or your board is not connected... Sir it's showing error while compiling
Sir i have made same project but sir i am facing some problems, that i ahe done all the process but the value of ph is not getting accurate means it is not constant . It is varies up and dowm continuously. i think some problems in the code plzzz rely me as soon as possible
There is not any issue with programming code as it’s tested with the parameters. So Check your hardware connection properly & also provide the external power to your board.
Hello, sir. Can you help me? I'm planning to build a project similar to yours, but I intend to use a soil pH sensor to determine the pH level of the soil. However, I don't know how to proceed.
I have already posted a video on the soil sensor. To calibrate the soil sensor, this will guide you. ruclips.net/video/uJAh_YCYLgc/видео.html And this video will guide you for the plant monitoring based on soul sensor ruclips.net/video/NA4KGpqvU-o/видео.html
@@SMEDehradun thank you so much sir I appreciated your help, last one question it is possible to connect that PH Sensor that using ESP32 to firebase to send the result of ph sensor to firebase?
Hello sir, when i followed your tutorial everything works in order except when i started verifying or uploading the code it will say "Compilation error: #error "Please specify your BLYNK_TEMPLATE_ID and BLYNK_DEVICE_NAME" and it will direct me to BlynkEdgent.h i properly copied the #define BLYNK_TEMPLATE_ID "TMPL6N6GotM39" #define BLYNK_TEMPLATE_NAME "PH Sensor With Blynk 2" in NODEMCU And it says that kind of error and "Compilation error: #error "Please specify your BLYNK_TEMPLATE_ID and BLYNK_DEVICE_NAME" which can be located in BlynkEdgent.h could you upload another tutorial for this? thank you
Hi, You need put header file inside your programming folder. Below video link will help you troubleshoot thw errors. ruclips.net/video/EPhY_hDozeo/видео.html
@@SMEDehradun the header file is already attached to the programming which is the file we download " Ph_Sensor_Nodemcu" as you said in the video where you send a new link, you said " don't touch the header files without a knowledge" yes, i didn't touch a single thing on the headers. but the problem is whenever i try to verify and upload it it says like that "Compilation error: #error "Please specify your BLYNK_TEMPLATE_ID and BLYNK_DEVICE_NAME" and directing to blynkedge header files. which i have already attach the header on programming
@@SMEDehradun when opening a Ph_Sensor_with_New_Blynk 2.0. the header is already attached to a file NODEMCU/ESP32. so i had already the header. but once i started to verify or upload the code it says that error "Compilation error: #error "Please specify your BLYNK_TEMPLATE_ID and BLYNK_DEVICE_NAME" and it will direct me to BlynkEdgent.h. which on your tutorial don't have that video to fix it. you said in the link you send " don't touch the header if you don't have knowledge on it" so basically yeah i didn't touch a single thing in the headers, but only to follow the process in your tutorial.
I think, you are not watching the video properly. I have aleqdy share you the troubleshooting link. Watch it completely. And still you are facing same problem, Share the complete screen shot at schematicslab@gmail.com
Really well deserve among so many top global trainer
Thank you sir
I sincerely appreciate your help with the project today sir even u don't know who am I . Thank u for helping me to accomplish my goal. I wanted to express my gratitude for your training today.You are the best.I wish you the best of the best with your career and your life.God Almighty will continue to favour you and crown all your efforts with success...!.i can't express ur help in words sir thank you so much.
Most welcome 🙏
U explained very well sir thank you ...
Welcome 🙏
Very useful video sir 👍
Thanks @NuttyEngineer
hi sir how do you recommend the safest way to use external 5v from node mcu esp8266 to the pH sensor
Use external step down module 12V DC to 5V DC for this
Great video man. But how do you connect the ESP32 board to the ph sensor? I didn't get it.
Hi,
I have already attached the code for NodeMCU as well as ESP32 in the video description. Check out the link in description.
Hello sir I already have PLC indicator for pH and temperature and it has output for the same
But I don't know how to read or datalog it in my PC
I am a biology graduate please can you guide me how can I datalog my reading of my pH and temperature with or without Arduino
wow very nice its very useful
Thank you
Thank you very much sir
🙏
As per the circuit diagram how do i connect the 12v dc adapter to node mcu 8266 vin?
You can connect external 5V dc to Vin pin.
have you used battery on circuit diagram
I have used power directly through my laptop. You can use mobile power bank or other 5V battery.
Thank you very much
Welcome 🙏
what version is that node mcu esp 8266
ESP12E version
Sir is it possible if you will add email notification here? That when the reading of the sensor is lower than 5, it will notify the user?
Yes,
You can add email alert.
See this video to add email alert in blynk.
ruclips.net/video/T8vPXUrAfco/видео.html
what is blynkEdgent.h
it is not present in my library manager
please explain about it and how to include it
You need to put all the headers in the programming folder.
Below video link may explain you in batter way
ruclips.net/video/EPhY_hDozeo/видео.html
@@SMEDehradun it's showing complication errors as BlynkEdgent.h : no such file or directory
And also I'm not able to connect the wifi with blynk
Hello sir , I'm trying to build a project using ph. But I'm having a difficulty with the code. Can you please help. I connected a motor pump to the esp along with ph sensor. So when the ph sensor value decreases the motor pump should turn on. In the code I tried to implement if else but i am getting an error saying "conversion from int to constString is ambiguous"
Can you please tell me a solution sir ?
Hi,
There is definition issue to define the values in your code. Rectify it.
Hello sir, I am using ph sensor, arduino, nodemcu and blynk. I am having trouble with the codes for nodemcu. Can I ask for your help sir ? Thankyou
Hi,
I have already made a video on PH sensor interfacing with New Blynk IoT.
You can take help from this video.
And if there is some issue, let me know.
Hello I've done all of these but the readings on my Ph sensor is above 14. What seems to be the problem?
You need to calibrate the ph sensor first. Then it will work accurate with code.
@@SMEDehradun how to do that sir?
In file included from C:\Users\Umer Ahmed\Downloads\PH_Sensor_ESP32\PH_Sensor_ESP32.ino:13:
C:\Users\Umer Ahmed\Downloads\PH_Sensor_ESP32\BlynkEdgent.h:17:2: error: #error "Please specify your BLYNK_TEMPLATE_ID and BLYNK_DEVICE_NAME"
#error "Please specify your BLYNK_TEMPLATE_ID and BLYNK_DEVICE_NAME"
^~~~~
exit status 1
Compilation error: #error "Please specify your BLYNK_TEMPLATE_ID and BLYNK_DEVICE_NAME"
i am getting this error how can i resolve it, i have already define the both but getting same error again again
I think, you haven’t seen the video properly.
There is need if headers in the sketch folder.
Below video link may help you to troubleshoot-
ruclips.net/video/EPhY_hDozeo/видео.html
@@SMEDehradun i have check the sensor directly, which gives me readings but when i am using your code it start only showing 0.00 reading and nothing else although all the things are correct, then what would be probable reason that why it is showing only 0.00, further more i try to change the pin v0 to v13 on blynk but that not also works.
Only option is to calibrate the sensor. 0.00 is not the reading.
I am using esp8266 nodemcu. But i got this error sir. Help me sir. Need this for my uni project
\BlynkEdgent.h:16:2: error: #error "Please specify your BLYNK_TEMPLATE_ID and BLYNK_DEVICE_NAME"
16 | #error "Please specify your BLYNK_TEMPLATE_ID and BLYNK_DEVICE_NAME"
| ^~~~~
exit status 1
Compilation error: #error "Please specify your BLYNK_TEMPLATE_ID and BLYNK_DEVICE_NAME" .
It’s shows the error of blynk template name & password. So Write blynk credentials in the program.
@@SMEDehradun hi sir i got the same problem. I already write the blynk credentials in the program but it's #define BLYNK_TEMPLATE_NAME instead #define BLYNK_DEVICE_NAME. can you help me with that?
As shown in the video, if you Follow all the instructions your program will run and work properly.
The program is working here.
sir when im trying to add my device to blynk my esp32 wifi keeps disconnecting
Watch the video properly, then you will find, all the headers must be inside the program folder.
Or you can connect your board to blynk through alternate methods.
Below video may help you
ruclips.net/video/c5u6-Th1sI4/видео.html
Hello sir, I am using the ESP WROOM 32 board. I want to ask what should I define in my code. In your case, you use NodeMCU board so you put #define USE_NODE_MCU_BOARD
Hi LUKE,
You can write #define USE_WROVER_BOARD
@@SMEDehradun thanks sir
@@SMEDehradun why does my readings get so high. It reads from 17.00 - 18.00
Most welcome
@@SMEDehradun sir what do you think is the problem when it reads higher than 14
Hello sir, can you help me with my project. I did all of these but I cannot connect the blynk app. It only appear the readings on my serial monitor
Have you connect your board to wifi using blynk IoT app?
ruclips.net/video/EPhY_hDozeo/видео.html
Go through this video if you are getting any problem.
@@SMEDehradun Thank you for this video sir. The one thing I didn't do is open my mobile data that's why I can't connect my board to the wifi using blynk app
Once you connect your board to the wifi, then you will get the reading to your blynk widgets.
@@SMEDehradun Thank you so much sir
Most welcome
My voltage/PH from the ph sensor is hard changing from 6.87-7.3
But why ?
The input voltage from the arduino are 5Volts constantly. Please help
I need to measure 24/7 but sometimes the ph value are to high or low
Hi,
If you have already calibrate the PH sensor then it may issue of the bit resolution and accuracy in the ADC. SoYou can do one thing, read the PH sensor in Arduino and then send that data to NodeMCU ESP8266 serially.
This link will help you to access the data serially from Arduino to ESP8266.
ruclips.net/video/V7l2ZWmMOQY/видео.html
Hi , I need to build this ph sensor. Could you please help me on this project. I’m not an expert on this topic. Need your support. How may I contact you.
Hi,
Mail us at schematicslab@gmail.com
ESP 8266 works in 3.3 v, as per the schematic diagram, why we need to connect 12v DC
You can provide the 12v dc in power input pin (VIN).
@@SMEDehradun got it, thanks
🙏
👍👍
Thank you
How would it be the code, If we connect 2 set of pH sensor to ESP32.
Hi,
you just calibrate the PH sensor and connect to any Analog pin in ESP32 board. and read the sensor like the first one, shows in the video.
What about show data of both pH sensor to Blynk website or app.
Create the new datastream, and send the value to the blynk as for the first sensor
the selected serial port serial.serialutil.SerialTimeoutException: Write timeout does not exist or your board is not connected...
Sir it's showing error while compiling
Which board you have selected like ESP12E or esp32 ?
@@SMEDehradun esp8266
Sir pH sensor has 5 pins
T0
D0
P0
G
G
V+
Here which is the output pin sir
Mail me the screenshot of complete program. I will revert you.
Sir what if the ph sensor is connected to the arduino, and the arduino is connected to the nodemcu. Is it possible?
Thank you
And also, my ph sensor is v1.1, not v2.0
Yes Luke Mark,
This is also possible.
Can I ask how to do it sir? The problem is that it does not show the readings in my web dashboard and blynk app
Send the link for the ph sensor so that I can suggest the library.
I'll mail it to you sir
Sir i have made same project but sir i am facing some problems, that i ahe done all the process but the value of ph is not getting accurate means it is not constant . It is varies up and dowm continuously. i think some problems in the code plzzz rely me as soon as possible
Hello Vedant,
There is no coding issue. You need to calibrate the PH sensor first so that it can give you the accurate value.
@@SMEDehradun sir i have calibrated the ph sensor already but vale is still not constant can i send you the video ?
sir how can i contact you sir
There is not any issue with programming code as it’s tested with the parameters. So Check your hardware connection properly & also provide the external power to your board.
@@SMEDehradun ok sir thanks you sir
Hello, sir. Can you help me? I'm planning to build a project similar to yours, but I intend to use a soil pH sensor to determine the pH level of the soil. However, I don't know how to proceed.
I have already posted a video on the soil sensor.
To calibrate the soil sensor, this will guide you.
ruclips.net/video/uJAh_YCYLgc/видео.html
And this video will guide you for the plant monitoring based on soul sensor
ruclips.net/video/NA4KGpqvU-o/видео.html
@@SMEDehradun thank you so much sir I appreciated your help, last one question it is possible to connect that PH Sensor that using ESP32 to firebase to send the result of ph sensor to firebase?
Yes. This is possible.
Helloo sir i cant realy understand the connections diagram for esp 32 can you please help me😢
what is the three circle in the top the 12v 5v and ground what component is that
I have explained each and everything properly in video. If you see it properly then you can understand
how to conect wifi device
Through mobile app. If you Watch the video, you will get the method to connect with wifi.
i used PH-4502C and the output is different
Ya. It’s depend on water & calibration of the sensor.
It may vary.
@@SMEDehradun the results are reversed, ph value of bleach is around 5 and ph value of of vinegar is around 9
Sir @@SMEDehradun how to calibrate PH-4502C ph sensor? pls help
You need Calibrate the sensor first. After that try.
We don’t have PH-4502C sensor. So can’t say how to calibrate it.
Sir can I get a report for this project
Hi,
Sorry report is not available. I can help you on project.
@@SMEDehradun ok sir thank you
Welcome
I sent you an email sir
Check in video description
Hello sir, when i followed your tutorial everything works in order except when i started verifying or uploading the code it will say "Compilation error: #error "Please specify your BLYNK_TEMPLATE_ID and BLYNK_DEVICE_NAME" and it will direct me to BlynkEdgent.h
i properly copied the
#define BLYNK_TEMPLATE_ID "TMPL6N6GotM39"
#define BLYNK_TEMPLATE_NAME "PH Sensor With Blynk 2" in NODEMCU
And it says that kind of error and "Compilation error: #error "Please specify your BLYNK_TEMPLATE_ID and BLYNK_DEVICE_NAME" which can be located in BlynkEdgent.h
could you upload another tutorial for this? thank you
Hi,
You need put header file inside your programming folder.
Below video link will help you troubleshoot thw errors.
ruclips.net/video/EPhY_hDozeo/видео.html
@@SMEDehradun the header file is already attached to the programming which is the file we download " Ph_Sensor_Nodemcu" as you said in the video where you send a new link, you said " don't touch the header files without a knowledge" yes, i didn't touch a single thing on the headers. but the problem is whenever i try to verify and upload it it says like that "Compilation error: #error "Please specify your BLYNK_TEMPLATE_ID and BLYNK_DEVICE_NAME" and directing to blynkedge header files. which i have already attach the header on programming
@@SMEDehradun when opening a Ph_Sensor_with_New_Blynk 2.0. the header is already attached to a file NODEMCU/ESP32. so i had already the header. but once i started to verify or upload the code it says that error "Compilation error: #error "Please specify your BLYNK_TEMPLATE_ID and BLYNK_DEVICE_NAME" and it will direct me to BlynkEdgent.h. which on your tutorial don't have that video to fix it. you said in the link you send " don't touch the header if you don't have knowledge on it" so basically yeah i didn't touch a single thing in the headers, but only to follow the process in your tutorial.
I think, you are not watching the video properly. I have aleqdy share you the troubleshooting link. Watch it completely.
And still you are facing same problem, Share the complete screen shot at schematicslab@gmail.com
Sir how can I contact u
You can contact us at schematicslab@gmail.com
@@SMEDehradun sir alredy I have mailed can u plz check it ones
@@SMEDehradun sir can I get ur contact number plz
K.