I am trying to make a project that can read data from usbsheild connected to arduino uno board then send them to firebase through esp8266. But the libraries of firebase and esp8266wifi that i found are not for arduino uno but for the esp8266 board can anyone help me in this problem ?
The best way you can do is connect it to a web and then use firebase-php library
Follow this as your guide
Don't forget to create your FIREBASE ACCOUNT
look for database secret as your TOKEN under User and Permissions TAB