Type Definition esp_idf_bindgen::esp_now_send_cb_t

type esp_now_send_cb_t = Option<unsafe extern "C" fn(mac_addr: *const u8, status: esp_now_send_status_t)>;

@brief Callback function of sending ESPNOW data @param mac_addr peer MAC address @param status status of sending ESPNOW data (succeed or fail)