If you can guide me so as to how I can make modifications to the Serial.print and Serial.println so as to make them reentrant then I will do so. But I do not know enough about the development policies ...

Those errors are present in the CMSIS-Atmel package, and makes the language server produce other bogus errors as a consquence of parse failure of header files. See arduino/arduino-ide#307 See ...

A Microcontroller uses many different protocols to communicate with various sensors and modules. There are many different types of communication protocols for wireless and wired communication, and the ...