What are the devices that are used to connect arduino?

visit this sites

 

https://www.trossenrobotics.com/c/arduino-robotics.aspx

 

https://create.arduino.cc/projecthub

 

https://www.digikey.in/en/articles/techzone/2017/jan/10-things-to-know-before-starting-your-arduino-project 

Hi Reshwanth S,

I think this is the right place you to learn berifly.

 

https://en.wikipedia.org/wiki/List_of_Arduino_boards_and_compatible_systems

Not too sure what you mean by that. However, if you mean boards used to expand the function of Arduino, in technical terms, these are called shields. Visit following link for the details.

 

https://randomnerdtutorials.com/25-arduino-shields/

 

If you are expecting something else, please do let us know.