[IOT]Controlling Home Appliences with ESP8266 and Android App – Part -2

This tutorial is a part two of “Controlling Home Appliances using Android App”. In this article we will make an android app from scratch, to control led of ESP8266 Node MCU board, that we controlled from browser last time. To create an app, we will use “MIT APP INVENTOR 2”. Its a very simple way to make android app within few min.

You can find Documentation for app invetor on this bellow link: http://appinventor.mit.edu/explore/library.html
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Step 1:

Go to http://ai2.appinventor.mit.edu/

Step2:

Click on Start New Project, then you will see a screen like below.

From left user interface section , bring Button, text box, lebel and drop on on your screen. You also have to add one more component that is web which you can find in connectivity section in left panel.

After adding, connect your phone with app inventor. You have to download one android app in your smart phone. From this link.

https://play.google.com/store/apps/details?id=edu.mit.appinventor.aicompanion3&hl=en

Now in browser, press connect button shown in above image, Click on AI companion in app inventor page, and you will see a QR code . You need to scan QR code in your android app that you have installed and press connect. Now all changes in screen will reflect on your phone. (make sure, your phone is connected with internet.)

Now go to Blocks Section in top right corner of app inventor page in your browser.

Make block like bellow, I am sure, its easy, and you can figure out how to make by yourself.

I have given a good look, to the app, by adding image to the button, and changing image(on.png and Off.png ) when clicked. The app I have created looks like bellow. You can also download the app from the play store(click Here to download app)

Click Here For source Code

That’s all, Now you enter, your ip of ESP8266 or node mcu board. And you press the button to control LED.Now understand and analyse both app and esp code. Do let me know, if you have any questions. In comment box bellow.
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In the next tutorial , we will control the same LED from outside home network over internet.

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kavya

Why dont u put designer ?
- satya sankar sahoo
  
  What kind of designer you are talking about?
jega

how do i get a source code
satya sankar sahoo

Its above, in the post, or you can use this link https://www.myelectronicslab.com/wp-content/uploads/2016/03/espGPIOControlV_1_0.zip
Muhaffiz Hamid

Great tutorial! But what about if you want to control an analog output like a servo motor or controlling the speed of a motor?
Ayush Jindal

how to control the led outside your home network?
Ayushi Mundra

The same approach will work when esp8266 is server/access point and wants to control GPIO LED from android app or some other way is there to control GPIO led from android app .
How to control esp8266 softAp with an android app ???
Ayushi Mundra

This approach will work when esp8266 is server/access point then approach is different or same to control GPIO led from android app .
How to control esp8266 softAp with an android app ???
- Ayushi Mundra
  
  if possibe can u give me idea ??
Dang Khoa Nguyen

smartphone control esp8266 with home network => OK but smartphone connector with other network =>error please helpme , thankyou verymuch
sam

satya ji where r u form? are u from WB??
Santosh Babu

Hi very interesting. Please also make a toturial on how to control a pwm pin using slider in mit app. I am making a project to control my room fan but not getting a clue how to do so.. please help..

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