#include ".h" ::(Module* mod) { /* Constructor implementation MUST assign the provided "mod" pointer to the private "_mod" pointer. */ _mod = mod; } int16_t ::begin() { /* "begin" method implementation MUST call the "init" method with appropriate settings. */ _mod->init(); /* "begin" method SHOULD implement some sort of mechanism to verify the connection between Arduino and the module. For example, sending AT command for UART modules, or reading a version register for SPI/I2C modules */ }