How to send sensor dat to thingspeak server using ESP and Arduino.
ฝัง
- เผยแพร่เมื่อ 11 ส.ค. 2018
- #Thingspeak #SendingDataToServer #IoT
This tutorial is about how we can use the ESP8266 wifi module and Arduino to send sensor data to thingspeak.com. So, here I am using the DHT-11 sensor to fetch the humidity and temperature data and send it to the Thingspeak server.
Set the Baud Rate of ESP to 9600 using AT Command (AT+CIOBAUD=9600) or you can use (AT+UART_DEF=9600,8,1,0)
Before downloading please watch the full video to know about the procedure of how to send data because it will help you to understand the protocol and you can build many more things.
In this tutorial, I am explaining how to test the ESP8266-01 module using Arduino UNO and
send sensor data into thingspeak server.
Requirements:
#1. Arduino UNO
#2. ESP8266-01 wifi module
#3. DHT-11 sensor
#4. Thingspeak server.
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*Updated Code Edited Code*
--------------------------------------------------------
Before uploading my code.
Step 1: remove the ic ATmega328 of arduino.
Step 2: connect Rx of arduino to Rx of ESP and Tx of arduino to Tx of ESP.
Step 3: Open serial monitor of arduino and set baud at 115200 and Both NL&CR
Step 4: Send AT it should return OK then AT+CIOBAUD=9600 it should return OK if not then write AT+UART_DEF=9600,8,1,0 it should return OK.
Step 5: change the serial monitor setting to baud rate at 9600 and Both NL&CR.
Step 6: change the mode of ESP by sending AT+CWMODE=3 it should return OK
Step 7: upload my code and test
----------------------------------------------------------------------------------------------------------------------------
#include
#include
String apiKey = "XXXXXXXXXXXXXXXX";
dht DHT;
#define DHT11_PIN 4
int humi,temp;
SoftwareSerial ser(2, 3); // RX, TX
void setup(){
ser.begin(9600);
Serial.begin(9600);
unsigned char check_connection=0;
unsigned char times_check=0;
Serial.println("Connecting to Wifi");
while(check_connection==0)
{
Serial.print("..");
ser.print("AT+CWJAP=\"SSID\",\"PASSWORD\"
");
ser.setTimeout(5000);
if(ser.find("WIFI CONNECTED
")==1 )
{
Serial.println("WIFI CONNECTED");
break;
}
times_check++;
if(times_check>3)
{
times_check=0;
Serial.println("Trying to Reconnect..");
}
}
delay(5000);
}
void loop()
{
DHT.read11(DHT11_PIN);
humi=DHT.humidity;
temp=DHT.temperature;
Serial.print("H:");
Serial.print(humi);
Serial.println("%");
Serial.print("T:");
Serial.print(temp);
Serial.println("C");
// TCP connection
String cmd = "AT+CIPSTART=\"TCP\",\"";
cmd += "184.106.153.149"; // api.thingspeak.com
cmd += "\",80";
ser.println(cmd);
if(ser.find("Error")){
Serial.println("AT+CIPSTART error");
return;
}
// prepare GET string
String getStr = "GET /update?api_key=";
getStr += apiKey;
getStr +="&field1=";
getStr += String(10);
getStr +="&field2=";
getStr += String(10);
getStr += "
";
// send data length
cmd = "AT+CIPSEND=";
cmd += String(getStr.length());
ser.println(cmd);
if(ser.find(">")){
ser.print(getStr);
Serial.println(getStr);
}
else{
ser.println("AT+CIPCLOSE");
Serial.println("CIPCLOSE");
}
// thingspeak needs 15 sec delay between updates
delay(16000);
}
why in code is error: 'getStr' does not name a type?
Can you please share screenshot of the error.
Hey friend, It's an system error. Not related to code.
esp8266 join wifi but Serial Monitor print("Trying to Reconnect..")
how to fix
@@MyEngineeringStuffs
thx buddy but now i can't send data to thingspeak
I am using ACS 712 voltage sensor and ZMPT101B current sensor I will have to upload the data to thingspeak. I am doing this for my small electricity monitoring system but I don't have any prior knowledge of it. I need your help.
How did you get the datas uploaded to ThingSpeak. I tried the same code. It is not working . But tried without any codes with AT command. It worked . But with this code. It doesn't
Sir, what if I use an MQ-2 gas sensor? What codes should I replace or on this current code then?
Hey! I have issues with fetching data FROM api on web on my arduino. Can you tell me what to program on arduino and what to program on esp8266? Can i upload the code just to arduino and then communicate with esp?
Thank you.
M
Hello,
I am trying to connect it with the wifi, but its getting failed. I have checked all the connections upto ic pins. Checked tge ssid and password through ip also. But the problem still persists. Could u plz suggest how to solve it? I have designed the circuit without the resistors.
Hey i am using nodemcu for the same project but everytime i open my serial monitor it just shows trying to reconnect.
It works for NodeMCU also, just use TX, RX, 3V and GND from NodeMCU.
Hey friend sorry for the inconvenience. Recently I have noticed many ESP01 module comes with different firmware. I will soon upload a well define tutorial on this topic again. For the time being please try to check and pass AT COMMANDS manually and get the ESP module checked. Sure I will update a better and checking process for the ESP. Thank you
@@MyEngineeringStuffs Please, you can upload your code again, the 404 error page.
i tried this in IDE 1.8.9 but the code is failing in all kinds of ways.
dht.begin does not work, and after trying that to solve i bump into
warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings] on if(ESP8266.find(">"))
This has been very helpful! Thank You!
*Thank you Friend* for your kind words.
hi. may i ask your favor to help me out solve my problem? i currently facing "Trying reconnect" all over again. i don't know how to solve it. i've watching other tutorial regarding to the problem, but the result still same
Excellent tutorial....Thank you very much for creating such an informative tutorial. appreciated.
Thank you friend.
Thank you for sharing valuable information 🙏🏽
I m trying to upload the ultrasonic sensor data but its not getting upload.
hi nice video but i m new in arduino and i cant look clearly where you put wire into ESP8266
i want to know, can you help me
Can you develop code for resistance measurement instead of temp and humidity measurement
Nice detailed video.. I have a query.. how can I insert an rf module data instead of the DHT/. any help will be really appreciated
Which DHT library are you using?
It doest work with he adafruit dht library.
Hey friend sorry for not including DHT library. You can download from here: myengineeringstuffs.com/download/1097/
Delete the previous library before you add this one.
Hey friend sorry that i have not included the download file. Please download from here myengineeringstuffs.com/download/1097/
no problem
The issue is with the version of the dht library, I used version 1.2.2 and it works like a charm
what's the hell? t run code and repair to suit with my project but the serial alway to print connect the witfi ?
it is showing "'writeThingSpeak' was not declared in this scope" What to do now
What software do you use to make the circuit diagrams?
Microsoft Office Visio 2007
for arduino mega can it work ?, sorry my english it's no good
what are the thingspeak credentials required
I have already provided required credentials
thank you so much for the video, you really gave me the hint for doing my project.
Thank you friend
I did everything correctly, yet: "Error compiling for board Arduino Zero (Programming Port).". I even disconnected that one wire during compiling. I use digital pins 8 and 9 instead, do they need to be 2 and 3? i did change the pins in the code though
Hey friend sorry for the inconvenience. Recently I have noticed many ESP01 module comes with different firmware. I will soon upload a well define tutorial on this topic again. For the time being please try to check and pass AT COMMANDS manually and get the ESP module checked. Sure I will update a better and checking process for the ESP. Thank you
MyEngineeringStuffs I have an arduino zero. Is the wiring any different in my case?
Thank you for this content sir, I was wondering how we can analyze the data then? TIA
i have installed all the required libraries required for lm35 and pulserate sensor
Is there any library for ESP8266
Need to include ESP board manager in preferences(Aditional board manager ULR).
This is the Link: arduino.esp8266.com/stable/package_esp8266com_index.json
Then go to Tools-->Boards --> Click Board Manager
Thank you very much my friend, you really helped me.
Happy to help
why didn't u connect the RX and TX pins from the ESP to the RX TX ports built in the Arduino? On the Arduino u instead connected it to ports 2 and 3. why didn't u connect them to ports 0 and 1?
Hey friend you can connect as you like. I am using software serial to do my job you can use hardware serial pins to carryout your task.
thank you so much bro!
Thank you friend for your kind words.
great tutorial m8 !
Why I always trying to connecting bro?
I tried to connect my esp8266 with AT+CWJAP in serial monitor it work just fine (default empty code), but when I use your code it "Done Compiling" but always trying to reconnect.
Hey friend just try to connect manually with your wifi. Means try AT COMMANDS to connect ESP8266-01 with your WIFI ROUTER.
Good Job,thanks for share
what would be the Rx Tx pins if I wish to plug into Arduino mega??
As I am using Software Serial you can use the same pin. Sorry to reply to you late.
In my serial monitor only showing again and again.. trying to reconnect...
I am using my mobile hotspot .and also ESP_019F90 open wifi signal is visible in my network settings tab
Could you please help
what is the registor value on esp8266
how to remove this error "ESP8266 CIPSEND ERROR: RESENDING"
Hey your video is awesome bro but I'm having some issues with the esp8266.
I cant connect esp8266 with the WiFi. Do I need to set it to Station mode first ?
Hey friend try to configure your ESP as AT+CWMODE=3 with both AP and ST mode.
@@MyEngineeringStuffs Thanks man. I found out that I was connecting wrong pin in the arduino :p
What I did was
RX➡️RX
TX➡️TX
instead of
RX➡️TX
TX➡️RX
Silly me 😝
@@shirishranjit9677 Best of luck friend
@@shirishranjit9677 Best of luck friend
Thank you bro!
Thank You friend for your kind words.
I also work on thingspeak but my sensor does not obtained on the thingspeak field.
Please give me suggestion about it. My sensor is MQ-7
bro did you get the answer for that? cuz im also using mq7 sensor
Hey friend follow like this first read the mq7 sensor and try to print the data on serial then try the above process to send the data to thingspeak in one of the field value.
If possible please try updated process
th-cam.com/video/cpPMGioijqY/w-d-xo.html
Thank you!!!!!
AT+CIPCLOSE
after started sending data
it's stopping automatically
lm35 temp sensor data is not uploading to thingspeak
Hey friend check your thingspeak credentials and api key.
We can send dte from arduino UNO to Thinkspeak without program the ESP ??
Yes friend by using AT COMMANDS
thanks a ton sir for uploading this video
Thank you for your valuable comment 🙏
does it update automatically or do I have to upload the code every time to do so?
Its does upload automatically. Please follow the tutorial.
Hi Sir, I wanna ask. How to upload or sending data to thingspeak every 15 minutes or 1 hour? Because I have final task that I want to uploading data to ThingSpeak every 15 minutes
Thingspeak allows data at every 16 seconds.
i am unable to download th code can u create a another link for it
Shouldnt rst and cspd pins be powered with 3.3V pin on arduino
no it should be in pull condition. Means A register should be connected in between the pins and 3.3v power.
well explained. But unable to download the Code.
Can i using this data from server to control relay with other arduino?
The same will not help you friend. You need to take the reading API.
list out the credentials for thingspeak
the text file provided is not the same as in the tutorial
Hi sir how to connected lm35, sound, water, touch sensor connected with arduinouno and esp8266 wifi moduals
Hey friend try to interface every module with their respective communication protocol and after getting individual values of every module try to send the data using ESP to thingspeak sever. Hope you get he point and how to interface all the modules you can search on my youtube channel or any other channel. Thank You
Hi, I need help. I got it to work and all but the temp is in Celsius not Fahrenheit. How can I change It? thank you
hey friend you can the formula *temp_f = (temp_c x1.8)+32* to convert the temperature in Fahrenheit. And upload the data
Which line? At the temp_f=DHT.readTemperature();
Or
GetStr += String(temp_f);
Thank you
Got it. I put it at the getStr line. It works. Thank you very much. Your awesome.
A friend of mine showed me your video and I have to thank him.
hello, thanks for the good video but even though I deleted the part that you posted I still have the problem of reconnection and I don't know why 😢😢😢🤦♀️🤦♀️😢 plzz help me
Hi thank you so much for providing the tutorial. my monitor is say "trying to reconnect" forever. and I've already changed baud rate to 9600. any chance you know how to fix that ????/by the way. im using ESP8266 Mini.
Hey friend thank for the comment. Have you tried the procedure pinned in the comment section again you need to change mode of ESP to ST. So, make the mode default to ST+AP, by using AT+CWMODE=3 at command.
@@MyEngineeringStuffs I dont see the pinned comment,but i did try using AT+CWMODE=3 at monitor command and sent, nothing happened. sorry i dont know how to change . mode of ESP to ST
Thankyou
why i cannot upload to the board.... Error compiling for board Arduino/Genuino Uno
Hey friend, if have connected the right board and selected the right board from board manager then the error is some thing different. Please send the actual or send the screen shot of the full error page.
i cant understand the connections..........can u help me
got the error about dht library saying dht is not name a type
why my esp8266.begin there got error ??
Hey, thanks for the good video. Can you share the exact schema of the circuit? Thanks :)
Hey, thank you for your words. The download link is in the description box. :)
Hello, I have a query. I used your code and it did build in successfully but the wifi is not getting connected. The Serial monitor keeps showing "trying to connect". Please tell me how can I solve this issue?
Hello Riddhi Sai... I have posted a new code. Code is pinned in the description box please try that code.
@@MyEngineeringStuffs i fried both of em but both of em have the same problem.
Hey Riddhi Sai try this steps
Before uploading my code.
Step 1: remove the ic ATmega328 of arduino.
Step 2: connect Rx of arduino to Rx of ESP and Tx of arduino to Tx of ESP.
Step 3: Open serial monitor of arduino and set baud at 115200 and Both NL&CR
Step 4: Send AT it should return OK then AT+CIOBAUD=9600 it should return OK if not then write AT+UART_DEF=9600,8,1,0 it should return OK.
Step 5: change the serial monitor setting to baud rate at 9600 and Both NL&CR.
Step 6: change the mode of ESP
AT+CWMODE=3 it should return OK
Step 7: upload my code and test
@@MyEngineeringStuffs I will try this out !!! Thank you so much !!!
@@riddhisaireddy6096 how....can u help me plz
Nice video, thanks :)
cause it wont even let me compile the program, I used the correct library but it says error compiling cause of the adafruit library
Can you let me know the error type.
Even i had the same problem. I resolved it.
You can go to sketch/include library/manage libraries. There search for DHT sensor library and select version 1.2.2
It works correctly. You'll get that error if you're using any other version above 1.2.2
thanks for the video, I followed the exact thing except that I used ESP01 Adapter, however, it's not connecting to internet. Always "....Trying to Reconnect"
Hey *hulk brain* try to check with your WIFI credentials and if every thing is ok. Then try to delete the code:
if(ESP8266.find("WIFI CONNECTED
")==1)
{
Serial.println("WIFI CONNECTED");
break;
}
times_check++;
if(times_check>3)
{
times_check=0;
Serial.println("Trying to Reconnect..");
}
From the while loop in the setup function.
I also have the same problem and did the same solution as you gave, but the problem still persists. Please rply as soon as possible
Hey *Shikha Ujjainiia*
Delete this code and try again:
if(ESP8266.find("WIFI CONNECTED
")==1)
{
Serial.println("WIFI CONNECTED");
break;
}
times_check++;
if(times_check>3)
{
times_check=0;
Serial.println("Trying to Reconnect..");
}
Did you guys manage to solve the problem?
Sir now wifi connection problem is solved but a new problem arises that the serial monitor is not showing temperature and humidity values and it also not sending values to the thingspeak. please send me ur email id.
CONTENT COP
Sir in this project instead of humidity sensor I use pulse and LM35 Temperature sensor so the code is varies if varies send that code
Hey Raj,
First try to get the data from PULSE sensor & LM35 sensor if you get the data as per your requirement. Try the code in this video following the same procedure to send the data to thingspeak.
Good stuff
omkar samant Thanks for your words
i am getting the issue at connecting with the wifi. Any solution to that??
Try to connect manually by passing AT COMMANDS.
"exit status 1
Error compiling for board Arduino/Genuino Uno." It is showing this error. How to resolve this error?
Please take a screen shot and send it to support@myengineeringstuffs.com
same issue here
very helpful bro good work
Glad to hear that
Sir, we tried the code..but we r getting "trying to reconnect" problem again and again. We deleted the code too. Still no change. Can u please reply us soon?
Hey *Megha C V* do check with the baud rate Or you can delete the connecting code and manually connect with the wifi. After connecting the wifi module with wifi just unplug it and connect with the Arduino. So that wifi will automatically connect with your wifi network. And delete the connecting code from Arduino code and give a try . Hope this helps you
how do u fix the compiling error with the dht library
Can you let me know the error type.
it says FindFirstFile C:\Users\Anwar\AppData\Local\Temp\arduino_cache_372182: The system cannot find the file specified.
Error compiling for board Arduino/Genuino Uno.
How can we get the temperature without connecting the laptop through USB???
Hey friend this USB cable is only for power supply. You can use any external power supply to power you project or system.
Good job thanks
Thank you friend.
thanks
Thank you friend for your valuable comment.
Sorry, your source code links are not working. They have so many ads baked in you can't get to anywhere.
Sorry for that friend.
ESP8266 join wifi but serial monitor print("try to reconnect )
how to fix it
Hey friend Its an issue with your ESP-01 module baud rate. The steps I have mentioned and pinned in the comment please try that. You need to change the baud rate of ESP-01 to 9600 and try the code provided.
helpful
Thank you *Revati Naik* for your kind words.
@@MyEngineeringStuffs there is problem while connecting to WIFI
Please help
It shows trying to reconnect continuously ...... i followed steps you commented below same problem but still it shows same line again and again.
Should the transmitter pin be connected on the esp while uploading the code on arduino board ? or should we connect it after the code has been uploaded and it displays connecting to WIFI on serial monitor.
@@KunalKhade25 no matter when you connect esp to arduino as esp is connected with software serial of arduino we have to consider some points like. A new esp baud rate is 115200 and software serial of arduino will not work properly with this baud rate. So, change the baud rate of esp to 9600 and write the AT commands at 9600 baud rate. An d make sure with the wifi credential.
MyEngineeringStuffs I am having the same problem. It shows in the serial monitor that is trying to reconnect continuously. Is there any else that I can do to ensure WiFi connection, thanks.
thanks u bro. could you help me to write acode program have to gas sensor
Hey friend you need to write code for interfacing GAS Sensor and see the output on serial monitor if you find the sensor changes value as per your requirement then use this code to replace the gas sensor data with the given data.
#include
//connect 2 to Tx of ESP
//connect 3 to Rx of ESP
SoftwareSerial ser(2, 3); // RX, TX
void setup() {
ser.begin(9600);
Serial.begin(9600);
ser.println("AT+CWMODE=3");
delay(5000);
ser.println("AT+RST");
delay(1000);
ser.print("AT+CWQAP
");
delay(2000);
unsigned char check_connection=0;
unsigned char times_check=0;
Serial.println("Connecting to Wifi");
while(check_connection==0)
{
Serial.print("..");
ser.print("AT+CWJAP=\"AndroidAP\",\"bejq3330\"
");
ser.setTimeout(5000);
if(ser.find("WIFI CONNECTED
")==1 )
{
Serial.println("WIFI CONNECTED");
break;
}
times_check++;
if(times_check>3)
{
times_check=0;
Serial.println("Trying to Reconnect..");
}
}
delay(5000);
}
void loop() {
// put your main code here, to run repeatedly:
String cmd = "AT+CIPSTART=\"TCP\",\"";
cmd += "myengineeringstuffs.com"; // your domain name
or thingspeak server name
cmd += "\",80";
ser.println(cmd);
if(ser.find("Error")){
Serial.println("AT+CIPSTART error");
return;
}
String getStr = "GET /textile_automation/receiver.php?// your full website link
dname=FEPL020220191200&var1=";
getStr += String(100);
getStr +="&var2="; //use this for gas
getStr += String(100); //this is test value chage to String(GasSensorValue):
getStr +=" HTTP/1.1
Host: myengineeringstuffs.com";
// your domain name
or thingspeak server name
getStr += "
";
// send data length
cmd = "AT+CIPSEND=";
cmd += String(getStr.length());
ser.println(cmd);
ser.setTimeout(2000);
if(ser.find(">")){
ser.print(getStr);
Serial.println(cmd);
}
else{
ser.println("AT+CIPCLOSE");
// alert user
Serial.println("AT+CIPCLOSE");
}
Serial.println(getStr);
delay(5000);
}
Sir i have 2 problems
1) i had done as per you said .... but it shows wifi try to reconnect... and wifi connection is not eastablishing.... i am stuck here..... and
2)lso i want to add bmp 180 semsor ... so pls can you help me with its code
for first issue - Please find one more video with error debugging in my video list.
for second issue please mail me after completing the first issue.
@@MyEngineeringStuffs thank you sir .. for your help i will mail you after completing my 1 issue
Happy to help 🙏
@@MyEngineeringStuffs can you please share the link of the video.. I have check your video list but could not find it
well tried it but my serial monitor only show
Connecting to Wifi
.
that's it, nothing happens after that, any reason why?
*Edit, now it's stuck at trying to reconnect..
same thing happened to me after changingmy baudrate to 9600 and using esp8266 saparately i can easily conect to wifi .... dont know whats wrong with the code
can i get the source code i am not able to download from given blog website..!
Please send your requirements to my mail address allabtprojects@gmail.com
Hey friend you can send your requirements to my mail.
hi, I use the updated codes, but it still can't locate dht.h (dht:1:17: error: dht.h: No such file or directory. pls help. thanks.
Hey friend you can download DHT library. Download link is in the description.
thanks so much for this prompt response. I have installed dht.h correctly. but I still get "'dht' can not name a type]" error.
Hey, friend please check the dht library first. Means test the library and get the temperature and humidity value. After that add the esp code and check it. See there are many DHT library available on net so test a good one to get the temp and humi value then proceed. Hope this helps you.
Hi there, like your earnest response. Now code upload is done correctly. I got wifi connect failure by showing " reconecting" repeatly . Why the code dont need to type my wifi ssid and password to get connected?
updating - my esp01s-8066 leds are not blinking. does it normal even before connection, only see the TX on arduino blinks when try to reconnect.
Can i get all the link or not ? Becaz all the link is not available any more
Hey friend please check it is in the description box.
The code is not in sync with the library file provided.
Hey friend you need to download DHT library only and then you can follow the steps.
Hi, Can you please tell me on how to connect to
Wifi WPA2-Enterprise from that requires SSID, username and password? Im using Mega 2650 with ESP -01S. Thank you
can you share all the details via mail. ESP-01S can be work like other ESP-01 module.
Nice bro
HOw to install DHT library .. it occurs compile error
Hey Aishwarya just extract the zip and copy/paste the library folder into the given location:
Documents\Arduino\libraries\Here
and close all the Arduino window and reopen it.
Is there no ssid or password required like node mcu to esp8266 module to internet.
Hey friend every WIFI module needs to connect with. So, you need to provide cccSSID NAME and SSID PASSWORD in the code.
But in code no Ssid and password is written.
So where we have to write.
Hey friend this piece of code is used to connect with your SSID.
ser.print("AT+CWJAP=\"AndroidAP\",\"bejq3330\"
");
Where AndroidAP is my SSID NAME
bejq3330 is my SSID PASSWORD.
I need thinkspeak program where do i get
Hey friend please explain me little more so that I can help you little more.
Can i receive data from thingspeak with esp8266-esp01
Yes, you can with read API key. When you will hit the URL, you will get JSON data. Then you need to process the data.
@@MyEngineeringStuffs But none of the video use esp01 for receiving data instead nodemcu is used for receiving data.So what i asked whether can we receive data with esp01 specifically
Yes, friend why not if we are getting the data. Just we need to read the JSON data and process accordingly.
Hi can you re-upload the code? the link you gave is error. Thank you in advance
did you get the code?
Hey friend please check it is in the description box.
Hello my friend. Very nice. But your links in the comment are dead... and we can't download the code... seeya
Hey, friend sorry for that. My website is under construction please get my mail id from about section and mail me your requirements I will send it ASAP.
@@MyEngineeringStuffs please give me Ur contact no or email id..I am facing trying to reconnect issue..
@@rahulanand7830 hey friend sorry for the inconvenience, please try this video tutorial th-cam.com/video/yHRkv8p5QmU/w-d-xo.html
@@MyEngineeringStuffs Thank u very much I will try to implement this now.If u can share Ur email id or any contact details it will be good for me.I will contact u if some prblm persists.Actually I am stuck in my college major project.If u can guide me ,I will be very thankful.
Yes definitely I will help you. you can mail at allbputprojects@gmail.com
nice video
Thanks for your kind words
i cannot connect to wifi, it keep saying try to reconnect.. i already used both nodemcu and esp8266 but still cant connect.. need help pls. ASAP
sorry, its not try to reconnect, but still showing ".." in the serial monitor before try to reconnect. help
Hey friend Its an issue with your ESP-01 module baud rate. The steps I have mentioned and pinned in the comment please try that. You need to change the baud rate of ESP-01 to 9600 and try the provided code.
@@MyEngineeringStuffs okay ill try it.. If there's somethin ill tell you
Ok friend.
@@MyEngineeringStuffs what if still showing ".." ? I remembered i already used that 9600 baud rate in the first place. Do u have any other suggestion? Thanks
Sir,How could I get wifi module ssid and pass??🙏🙏
Hey friend If you have a HOME wifi connection you should have wifi name (SSID) and password (SSID password) OR if you are using Mobile tethering you should have a WIFI name(SSID) and a password.
I couldn't download the code ! It shows the page doesn't exist. Can u fix it?
Hey friend please check it is in the description box.
how to slove this error
In file included from C:\Users\Mayur\Documents\Arduino\libraries\DHT_sensor_library\DHT_U.cpp:22:0:
C:\Users\Mayur\Documents\Arduino\libraries\DHT_sensor_library\DHT_U.h:25:29: fatal error: Adafruit_Sensor.h: No such file or directory
compilation terminated.
Error compiling.
the same error is being faced by me after adding the new dht library ... hope i get a reply soon
@@RahulK-bp8ej i so time add this library but still same issue.but now i am slove that one.
circuit diagram mil jae gi?
does it worls on every sensor
Hey friend, This code is written to read DHT sensor, If you want to interface any other sensor you need to write the interfacing code of that sensor. And every thing is same for sending the data into thingspeak sever is same.