http://pa8mm.net/ 2026-07-12T13:28:10+00:00 http://pa8mm.net/ http://pa8mm.net/lib/exe/fetch.php?media=wiki:dokuwiki.svg text/html 2026-03-06T13:16:00+00:00 Anonymous (anonymous@undisclosed.example.com) http://pa8mm.net/doku.php?id=embedded:c&rev=1772802960&do=diff C VARIABLES * char - 1 byte - is used to store a single character (ASCII) value char Temp; // Variable definition or declaration (letting compiler know we will need it in the future) Temp = 25; // Variable initialisation (assigning a value) extern int my_var // Declaration. It tells the compiler that my_var is defined outside this file text/html 2026-03-06T13:14:43+00:00 Anonymous (anonymous@undisclosed.example.com) http://pa8mm.net/doku.php?id=embedded:c_arrays&rev=1772802883&do=diff ARRAYS SYNTAX uint8_t studentsAge[100]; // 100 elements in the array Things to note: * studentAge is a base pointer to a 100 data items of type uint8_t * Data type of studentAge is uint8_t* * Data type of the items stored is uint8_t Since array's name is just a base pointer, you can access N's element by incrementing a pointer and then dereferencing it. Example accessing 1st element (studentsAge[1]):