I am planning to make wifi enabled roti maker application.
my application must be full automatic on wif enable . which arduino controller can i used this application
Hi,
Can you tell us your electronics, programming, arduino, hardware experience?
What hardware do you have to make the flat bread?
The easiest controller to use with WFi would be the ESP32, it has I/O and WiFi connectivity as well as the ability to connect to I2C or SPI type displays.
What would you want to display to show TXT or graphics?
Thanks... Tom.. 
But esp8266 have less memory. Would it be enough to develop such applications. I need bigger graphic display. Like mention in the video.
I have done many applications using blynk and esp8266.
But I would like to know like wise arduino mega in esp module weather larger memory and io pins available
Ajit_nayak:
- what type of display need to used??
The type that fulfils your requirements for size, touch ability, brightness, resolution, ...
- which arduino board is enough to do application?
As you want WiFi indeed go for one of the ESP boards, either the ESP8266 or its big brother the ESP32.
3)what type of heating element to be used here.
One that's suitable to your application: fits in your device and puts out the required amount of heat.
Ajit_nayak:
But esp8266 have less memory. Would it be enough to develop such applications. I need bigger graphic display. Like mention in the video.
I have done many applications using blynk and esp8266.
But I would like to know like wise arduino mega in esp module weather larger memory and io pins available
Use google....
Tom...
This sounds like a fantastic project. However, based on the questions you have asked, I wonder if this project is a bit more advanced then you are ready for.
I would first identify each component that your devices needs, spend time learning each component, before attempting to create the final design.
Again, it does sound like a fun project.