Get the Thingspeak graphs on Blackkeyhole mobile app - Black keyhole

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Get the Thingspeak graphs on Blackkeyhole mobile app

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 In my tutorials, I had shown you how to make stuffs with DH11 sensor but this time I will show you how to make Custom app using MIT app Ineventor. Here I have used DH11 sensor for monitoring the data. You can use any other sensors to send data to Thingspeak cloud service. Here I have used DH11 sensor for monitoring Humidity and temperature values. Here I have deployed an android app for track the live data with the analytical report due to reduce the waste of time by go to  Thingspeak website for monitoring the live data.   


     1.DH11 sensor

      2. NodeMcu



Things Speak

     1. Go to and create an account .if you have already one. Login to your account.

2. Create a new channel by clicking on the button. Enter the basic details of the channel with how many fields, you have to use. Then Scroll down and save the channel. You can follow the video guide below.
3. Then go to API keys copy and paste the write key to a separate notepad file. You will need it later while programming.

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MIT App Inventor

    Follow the steps for creating App, from my video tutorial you can download my App for edit as per your wish


      Then program for Humidity & Temperature Monitoring using DHT11 & NodeMCU on ThingSpeak is given below.

  1. Copy this program and paste it on Arduino IDE.
  2. Download the DHT11/DHT22 library from GitHub and add it to your library manager.
  3. Select the NodeMCU ESP-12E board from the board manager.
  4. Paste your API Key from thingspeak which you created earlier on a programming section line.
  5. Edit the program to change the wifi SSID and password with your own.
  6. Compile the code and Upload it to NodeMCU board

Through Your mobile application, You can visualize the Chart view as well as you can check current values and past values with GMT time and date of Temperature and Humidity data. You can change the sensor as you wish. Hope You Have Liked this post and don't forget to share between who aspire to make this project.

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