Resources https://dl.espressif.com/doc/esp-idf/latest/api-reference/system/log.html Writing to log Several macros are available for different verbosity levels static const char *TAG = "My applicaiton thing"; ESP_LOGI(TAG, "Info – something happened\n"); ESP_LOGW(TAG, "Warning – something happened\n"); ESP_LOGE(TAG, "Error – something bad happened\n"); ESP_LOGD(TAG, "Debug – something happened\n"); ESP_LOGV(TAG, "Verbose – something happened\n");