After 10 years in the aircraft industry and 30 odd years in the computer industry I retired and took up this interesting and sometimes challenging hobby. Initially it was to create an Internet Radio for use in France but then moved onto very basic robots. Now I am into SBCs and using ESP32 and ESP8266 for odd tasks around the home.
Hi, welcome to the forum. It sounds like you will be able to make some contributions with that experience.
Arduino says and I agree, in general, the const keyword is preferred for defining constants and should be used instead of #define
"Never wrestle with a pig....the pig loves it and you end up covered in mud..." anon
My experience hours are >75,000 and I stopped counting in 2004.
Major Languages - 360 Macro Assembler, Intel Assembler, PLI/1, Pascal, C plus numerous job control and scripting