First one is Started Notification mail and another one is Finish Notification Now Open your given mail and wait few moments, you will get a two mails.Click Start Your Build (Web Redirect Message).Enter your email address two times (Ex : Select Branch to Build From (Select What ever you want Example : ADC, GPIO, HTTP, Wi-Fi).Go to NodeMCU custom builds Cloud Builder website click here.
If you’re new to the whole IoT frenzy and ESP8266 in particular I recommend the following two tutorials for starters: Three way to build custom firmware for our ESP8266 NodeMCU Board. All you have to do is to define the branch from which to build and the user modules to include and… Hey Presto! there’s your personal firmware for you to download. I suggest you don’t build it yourself but have it built by this configurable service. If you want to build custom NodeMCU firmware for the ESP8266. But best recommend to use ESPressif AT firmware. All vendor and manufacture providing AT commands firmware. AT firmware has limitations like few AT commands and can’t develop more features, also if you use esp8266 with AT command you need another micro-controller to drive the esp8266 via AT commands.
But afterwards we may use some other programming methods for our requirement. When you buy new ESP8266 chip its comes with AT firmware mostly.
when your code is complied that time required library added with the help of compiler.
because in this method firmware also will upload with our application code based on your application with library files. You don’t need to build the firmware for Arduino core methods.
here below some discussion about how to build the firmware for all the programming methods of esp8266. if you not seen that previous section you can’t able to understand below discussion. last section you will seen the what are the different way of programming methods in esp8266. if you are a beginner most preferred method is NodeMCU Lua method. that means which method you choose for your application.