Hi I have some questions regarding the product above.
I am using arduino UNO
1) I want to power the shield with an external battery which provides 12v. Usually I do this by connecting my battery supply to the vin port on my arduino. Just to make sure, can I supply power using the vin port on the shield?
2) What are the functions of the GPIO pins on the shield? Can I use the normal pins instead? Is there any special cases where the GPIO pins are required?
3) I have bumped into this library https://github.com/esp8266/Arduino , can I use this to control the shield? I am aware that cytron already provided a library but I just want to know if this library can be used. I know that the library above is for programming the esp8266 module directly, writing to its memory instead of my uno's. Is it possible to directly program to the shield.
Thanks.