This repo will tell you how to create your own custom library.

1. Open your arduion ide and create a normal ino file as you do for your projects.

   • add a .h and .cpp file to it by using (...) 3 dots which located at Right hand top corner under serial monitor.
   • name it whatever you want in my case TestLib.h and TestLib.cpp
   • in .h file create ifndef loop to check whetere your lib pre existed or not and name it whever you want.
   • now if you seed in my example code TestLib.h file we are checknig arduion version and define the lib.
   • creating a class to hold your variables.
   • ending the class with (;).
   • ending the #ifndef by #endif

2. Code in .cpp file

   • you write you logic in .cpp file what operation you have to perform in my case it's additon.
   • you have to initialize the TestLib.h in .cpp file you created Like #include "TestLib.h"
   • To call the members of calls will be like this TestLib:: .
   • In my case I'm creating a int called sum which will return addition of the two Varriables.

3. calling the lib in main code

   • initialize the lib by #include "TestLib.h"
   • declared the type as TestLib and it's name what you want to use in your code.
   • passing 2 int to call like this testlib.sum(1,2); testlib what we declared, sum is a function will return additon of two numbers.

4. creation of keywords.txt

   • this file is helpful to colour the syntax in ide by defining it's grade
   1. KEYWORD1
   2. KEYWORD2
   • Are the examples

5. you can put the 3 file .h .cpp .txt in arduion library files by creating name of folder TestLib