#include "esp_log.h" #include "helper.h" const char* addr_to_str(esp_bd_addr_t bda) { static char bda_str[18]; sprintf(bda_str, "%02x:%02x:%02x:%02x:%02x:%02x", bda[0], bda[1], bda[2], bda[3], bda[4], bda[5]); return (const char*)bda_str; } const char* connection_state_to_str(esp_a2d_connection_state_t state) { const char* states[4] = {"Disconnected", "Connecting", "Connected", "Disconnecting"}; return states[state]; }