# ESP External Connection This component provides external wireless connectivity(Wi-Fi & Bluetooth) for ESP chips that do not have built-in wireless capabilities. The APIs used by this component are compatible with the Wi-Fi and Bluetooth component APIs in the ESP-IDF. ## Supported Features <table> <tr> <th>Features</th> <th>Supported</th> <th>Sill not Supported </th> </tr> <tr> <td>Virtual Wi-Fi interfaces</td> <td>Station, SoftAP</td> <td>Sniffer, Wi-Fi Aware (NAN)</td> </tr> <tr> <td>Wi-Fi Modes</td> <td>Station, SoftAP, Station/AP-coexistence mode</td> <td></td> </tr> <tr> <td>Wi-Fi Protocols</td> <td>802.11 b/g/n</td> <td></td> </tr> <tr> <td>Wi-Fi Security Modes</td> <td>Open / WPA / WPA2 / WPA3 / WPA2-Enterprise / WPA3-Enterprise / WPS</td> <td>WAPI / DPP</td> </tr> <tr> <td>Power Save</td> <td></td> <td>Modem-sleep</td> </tr> <tr> <td>Wi-Fi Data Transmission</td> <td>AMSDU, AMPDU, HT40, QoS</td> <td></td> </tr> <tr> <td>Vendor Features</td> <td></td> <td>ESP-NOW, Long Range mode, SmartConfig, Channel State Information</td> </tr> <tr> <td>Scan</td> <td>Fast scan, All-channel scan</td> <td></td> </tr> <tr> <td>Antennas</td> <td></td> <td>Multiple</td> </tr> <tr> <td>Bluetooth features</td> <td>Classic Bluetooth, BLE 4.2</td> <td></td> </tr> </table> ## Supported ESP Chips * Supported Host : **ESP32P4** * Supported Target : **ESP8689** ## Supported Boards * ESP32-P4_Function_EV_Board with ESP32_Module_SDIO_Converter_Board * Hardware setup - Pin Connections | ESP32P4 | ESP8689 | Function | | :-----: | :-----: | :------------------------------: | | 53 | EN | Reset | | GND | IO0 | Forcing ESP8689 in download mode | - The ESP32P4 controls the reset of the ESP8689 through pin 53. ## Supported Transports * SDIO Only * Wi-Fi and Bluetooth, traffic for both runs over SDIO ## Supported APIs <table> <tr> <th>Classification</th> <th>Supported APIs</th> </tr> <tr> <td rowspan="2"style="text-align:center; vertical-align:middle;">Initialization</td> <td>esp_wifi_<b>init</b> / esp_wifi_<b>deinit</b></td> </tr> <tr> <td>esp_wifi_<b>start</b> / esp_wifi_<b>stop</b></td> </tr> <tr> <td rowspan="13"style="text-align:center; vertical-align:middle;">Configuration</td> <td>esp_wifi_<b>set_mode</b> / esp_wifi_<b>get_mode</b></td> </tr> <tr> <td>esp_wifi_<b>set_config</b> / esp_wifi_<b>get_config</b></td> </tr> <tr> <td>esp_wifi_<b>set_storage</b></td> </tr> <tr> <td>esp_wifi_<b>set_protocol</b> / esp_wifi_<b>get_protocol</b></td> </tr> <tr> <td>esp_wifi_<b>set_country</b> / esp_wifi_<b>get_country</b></td> </tr> <tr> <td> esp_wifi_<b>set_country_code</b> / esp_wifi_<b>get_country_code</b></td> </tr> <tr> <td> esp_wifi_<b>set_bandwidth</b> / esp_wifi_<b>get_bandwidth</b></td> </tr> <tr> <td> esp_wifi_<b>set_mac</b> / esp_wifi_<b>get_mac</b></td> </tr> <tr> <td> esp_wifi_<b>restore</b></td> </tr> <tr> <td> esp_wifi_<b>set_vendor_ie</b> / esp_wifi_<b>set_vendor_ie_cb</b></td> </tr> <tr> <td> esp_wifi_<b>set_channel</b> / esp_wifi_<b>get_channel</b></td> </tr> <tr> <td> esp_wifi_<b>set_inactive_time</b> / esp_wifi_<b>get_inactive_time</b></td> </tr> <tr> <td> esp_wifi_<b>set_rssi_threshold</b> </tr> <tr> <td rowspan="7"style="text-align:center; vertical-align:middle;">Connection</td> <td>esp_wifi_<b>connect</b> / esp_wifi_<b>disconnect</b></td> </tr> <tr> <td>esp_wifi_<b>sta_get_aid</b> / esp_wifi_<b>ap_get_sta_aid</b></td> </tr> <tr> <td>esp_wifi_<b>sta_get_ap_info</b></td> </tr> <tr> <td>esp_wifi_ap_<b>get_sta_list_with_ip</b> / esp_wifi_ap_<b>get_sta_list</b></td> </tr> <tr> <td>esp_wifi_<b>deauth_sta</b></td> </tr> <tr> <td>esp_wifi_<b>sta_get_rssi</b></td> </tr> <tr> <td>esp_wifi_<b>sta_get_negotiated_phymode</b></td> </tr> <tr> <td rowspan="5"style="text-align:center; vertical-align:middle;">Scan</td> <td>esp_wifi_<b>scan_start</b> / esp_wifi_<b>scan_stop</b></td> </tr> <tr> <td>esp_wifi_<b>set_scan_parameters</b> / esp_wifi_<b>get_scan_parameters</b></td> </tr> <tr> <td>esp_wifi_<b>scan_get_ap_num</b></td> </tr> <tr> <td>esp_wifi_scan_get_ap_<b>records</b> / esp_wifi_scan_get_ap_<b>record</b></td> </tr> <tr> <td>esp_wifi_<b>clear_ap_list</b></td> </tr> <tr> <td rowspan="2"style="text-align:center; vertical-align:middle;">Others</td> <td>esp_wifi_<b>80211_tx</b></td> </tr> <tr> <td>esp_wifi_<b>statis_dump</b></td> </tr> </table> ## Step to enable this component in an example code: 1. Add this component to your project using ```idf.py add-dependency esp-extconn``` command. 2. In the main file of the example, add the following line: ```c #ifdef CONFIG_ESP_EXT_CONN_ENABLE #include "esp_extconn.h" #endif ``` 3. In your app_main() function, add the following line as the first line: ```c #ifdef CONFIG_ESP_EXT_CONN_ENABLE esp_extconn_config_t config = ESP_EXTCONN_CONFIG_DEFAULT(); esp_extconn_init(&config); #endif ``` 4. Using esp_wifi components like built-in wireless chips :) ## Throughput Performance ### 1. Parameters <table border="1" cellspacing="0" cellpadding="5"> <tr> <td colspan="2", style="text-align: center; font-size: 20px; font-weight: bold;">Parameters</td> <td style="font-size: 20px; font-weight: bold;">Value</td> </tr> <tr> <td rowspan="3"> System Parameters </td> <td>CACHE_L2_CACHE</td> <td>128 KB</td> </tr> <tr> <td>CACHE_L2_CACHE_LINE</td> <td>64 B</td> </tr> <tr> <td>FREERTOS_HZ</td> <td>100 Hz</td> </tr> <tr> <td rowspan="6"> Wi-Fi Parameters </td> <td>WIFI_STATIC_RX_BUFFER_NUM</td> <td>24</td> </tr> <tr> <td>WIFI_DYNAMIC_RX_BUFFER_NUM</td> <td>128</td> </tr> <tr> <td>WIFI_DYNAMIC_TX_BUFFER_NUM</td> <td>128</td> </tr> <tr> <td>WIFI_RX_BA_WIN</td> <td>32</td> </tr> <tr> <td>WIFI_IRAM_OPT</td> <td>y</td> </tr> <tr> <td>WIFI_RX_IRAM_OPT </td> <td>y</td> </tr> <tr> <td rowspan="7"> Lwip Parameters </td> <td>LWIP_IRAM_OPTIMIZATION</td> <td>y</td> </tr> <tr> <td>LWIP_TCPIP_RECVMBOX_SIZE</td> <td>64</td> </tr> <tr> <td>LWIP_TCP_WND_DEFAULT</td> <td>65535</td> </tr> <tr> <td>LWIP_TCP_SND_BUF_DEFAULT</td> <td>65535</td> </tr> <tr> <td>LWIP_TCP_RECVMBOX_SIZE</td> <td>64</td> </tr> <tr> <td>LWIP_TCP_ACCEPTMBOX_SIZE</td> <td>64</td> </tr> <tr> <td>LWIP_UDP_RECVMBOX_SIZE</td> <td>64</td> </tr> <tr> <td rowspan="10"> Tasks Parameters </td> <td>Iperf traffic Core ID</td> <td>0</td> </tr> <tr> <td>Iperf traffic Priority</td> <td>23</td> </tr> <tr> <td>Lwip Core ID</td> <td>0</td> </tr> <tr> <td>Lwip Priority</td> <td>23</td> </tr> <tr> <td>Wi-Fi Core ID</td> <td>0</td> </tr> <tr> <td>Wi-Fi Priority</td> <td>23</td> </tr> <tr> <td>SDIO TX Core ID</td> <td>1</td> </tr> <tr> <td>SDIO TX Priority</td> <td>24</td> </tr> <tr> <td>SDIO RX Core ID</td> <td>1</td> </tr> <tr> <td>SDIO RX Priority</td> <td>23</td> </tr> <tr> <td rowspan="4"> Router parameters </td> <td>Type</td> <td>ASUS RT-AX88U Pro</td> </tr> <tr> <td>Bandwidth</td> <td>40MHZ</td> </tr> <tr> <td>Beacon interval (ms)</td> <td>1000</td> </tr> <tr> <td>Mode</td> <td>N only</td> </tr> </table> ### 2. Performance #### 1. TCP TX ```sh [ ID] Interval Transfer Bandwidth [ 1] 0.0000-1.0000 sec 5.69 MBytes 47.7 Mbits/sec [ 1] 1.0000-2.0000 sec 5.77 MBytes 48.4 Mbits/sec [ 1] 2.0000-3.0000 sec 5.79 MBytes 48.6 Mbits/sec [ 1] 3.0000-4.0000 sec 5.81 MBytes 48.8 Mbits/sec [ 1] 4.0000-5.0000 sec 5.90 MBytes 49.5 Mbits/sec [ 1] 5.0000-6.0000 sec 5.87 MBytes 49.2 Mbits/sec [ 1] 6.0000-7.0000 sec 5.88 MBytes 49.3 Mbits/sec [ 1] 7.0000-8.0000 sec 5.80 MBytes 48.6 Mbits/sec [ 1] 8.0000-9.0000 sec 5.80 MBytes 48.6 Mbits/sec [ 1] 9.0000-10.0000 sec 5.79 MBytes 48.6 Mbits/sec [ 1] 0.0000-10.0053 sec 58.1 MBytes 48.7 Mbits/sec ``` #### 2. TCP RX ```sh Interval Bandwidth 0.0- 1.0 sec 51.24 Mbits/sec 1.0- 2.0 sec 51.04 Mbits/sec 2.0- 3.0 sec 51.59 Mbits/sec 3.0- 4.0 sec 51.44 Mbits/sec 4.0- 5.0 sec 51.58 Mbits/sec 5.0- 6.0 sec 51.45 Mbits/sec 6.0- 7.0 sec 51.25 Mbits/sec 7.0- 8.0 sec 51.91 Mbits/sec 8.0- 9.0 sec 51.66 Mbits/sec 9.0-10.0 sec 51.21 Mbits/sec 0.0-10.0 sec 51.44 Mbits/sec ``` #### 3. UDP TX ```sh [ ID] Interval Transfer Bandwidth Jitter Lost/Total Datagrams [ 1] 0.0000-1.0000 sec 7.69 MBytes 64.5 Mbits/sec 0.178 ms 0/5558 (0%) [ 1] 1.0000-2.0000 sec 7.72 MBytes 64.7 Mbits/sec 0.172 ms 0/5580 (0%) [ 1] 2.0000-3.0000 sec 7.73 MBytes 64.8 Mbits/sec 0.196 ms 0/5589 (0%) [ 1] 3.0000-4.0000 sec 7.71 MBytes 64.7 Mbits/sec 0.178 ms 0/5576 (0%) [ 1] 4.0000-5.0000 sec 7.72 MBytes 64.8 Mbits/sec 0.167 ms 0/5583 (0%) [ 1] 5.0000-6.0000 sec 7.73 MBytes 64.8 Mbits/sec 0.163 ms 0/5588 (0%) [ 1] 6.0000-7.0000 sec 7.73 MBytes 64.9 Mbits/sec 0.168 ms 22/5615 (0.39%) [ 1] 7.0000-8.0000 sec 7.73 MBytes 64.8 Mbits/sec 0.177 ms 24/5614 (0.43%) [ 1] 8.0000-9.0000 sec 7.72 MBytes 64.8 Mbits/sec 0.171 ms 20/5606 (0.36%) [ 1] 9.0000-10.0000 sec 7.72 MBytes 64.7 Mbits/sec 0.176 ms 27/5607 (0.48%) [ 1] 0.0000-10.0010 sec 77.2 MBytes 64.8 Mbits/sec 0.195 ms 93/55922 (0.17%) ``` #### 4. UDP RX ```sh Interval Bandwidth 0.0- 1.0 sec 84.16 Mbits/sec 1.0- 2.0 sec 84.34 Mbits/sec 2.0- 3.0 sec 84.43 Mbits/sec 3.0- 4.0 sec 84.14 Mbits/sec 4.0- 5.0 sec 83.56 Mbits/sec 5.0- 6.0 sec 84.45 Mbits/sec 6.0- 7.0 sec 84.57 Mbits/sec 7.0- 8.0 sec 84.20 Mbits/sec 8.0- 9.0 sec 83.71 Mbits/sec 9.0-10.0 sec 83.86 Mbits/sec 0.0-10.0 sec 84.14 Mbits/sec ``` > **Note : Due to the limited clock frequency (40M) of SDIO, there may be slight packet loss in the UDP TX direction.**
fa2f14d2cf72d2468345069b21150e5933af0111
idf.py add-dependency "espressif/esp-extconn^0.1.0-qa-test-full-master-20240913-20241120"