Other

Minimizing footprint

To minimize the program Flash/RAM, you can disable some of the built-in functionality:

1. Comment-out #define BLYNK_PRINT to remove prints

2. Put on the top of your sketch:

   #define BLYNK_NO_BUILTIN   // Disable built-in analog & digital pin operations
   #define BLYNK_NO_FLOAT     // Disable float operations

Porting, hacking

If you want to dive into crafting/hacking/porting Blynk library implementation, please also check this documentation.