This code snippet defines three preprocessor macros (`#define`) at the...

This code snippet defines three preprocessor macros (#define) at the beginning of a program, likely written in C, C++, or Arduino. Here's what each line does:

1. #define FW_NAME "islandGauge Sender"

   • Defines a macro FW_NAME containing the string "islandGauge Sender".
   • This is likely used to indicate the name of the firmware (FW) for the device, which is either "islandGauge Sender" or possibly "islandGauge Receiver" depending on the application.

2. #define FW_VER "1.3.0"

   • Defines a macro FW_VER containing the version number of the firmware as "1.3.0".
   • This is used to track and display the firmware version, useful for identifying software updates.

3. #define FW_BUILD __DATE__ " " __TIME__

   • Defines a macro FW_BUILD that concatenates the build (compile) date (__DATE__) and time (__TIME__).
   • __DATE__ is a predefined macro that inserts the current date in the format MMM DD YYYY (e.g., "Oct 30 2023").
   • __TIME__ is a predefined macro that inserts the current time in the format HH:MM:SS (e.g., "14:23:45").
   • Together, FW_BUILD provides a timestamp of when the firmware was compiled.

In summary, this code provides metadata about the firmware, like its name, version, and build timestamp, likely for logging, debugging, or display purposes in the resulting program.