# project subdirectory.
#
-PROJECT_NAME := simple_wifi
+PROJECT_NAME := wifi_softAP
include $(IDF_PATH)/make/project.mk
--- /dev/null
+# WiFi softAP example
+
+(See the README.md file in the upper level 'examples' directory for more information about examples.)
+
+
+## How to use example
+
+### Configure the project
+
+```
+make menuconfig
+```
+
+* Set serial port under Serial Flasher Options.
+
+* Set WiFi SSID and WiFi Password and Maximal STA connections under Example Configuration Options.
+
+### Build and Flash
+
+Build the project and flash it to the board, then run monitor tool to view serial output:
+
+```
+make -j4 flash monitor
+```
+
+(To exit the serial monitor, type ``Ctrl-]``.)
+
+See the Getting Started Guide for full steps to configure and use ESP-IDF to build projects.
+
+## Example Output
+
+There is the console output for this example:
+
+```
+I (917) phy: phy_version: 3960, 5211945, Jul 18 2018, 10:40:07, 0, 0
+I (917) wifi: mode : softAP (30:ae:a4:80:45:69)
+I (917) wifi softAP: wifi_init_softap finished.SSID:myssid password:mypassword
+I (26457) wifi: n:1 0, o:1 0, ap:1 1, sta:255 255, prof:1
+I (26457) wifi: station: 70:ef:00:43:96:67 join, AID=1, bg, 20
+I (26467) wifi softAP: station:70:ef:00:43:96:67 join, AID=1
+I (27657) tcpip_adapter: softAP assign IP to station,IP is: 192.168.4.2
+```
menu "Example Configuration"
-choice ESP_WIFI_MODE
- prompt "AP or STA"
- default ESP_WIFI_IS_STATION
- help
- Whether the esp32 is softAP or station.
-
-config ESP_WIFI_IS_SOFTAP
- bool "SoftAP"
-config ESP_WIFI_IS_STATION
- bool "Station"
-endchoice
-
-config ESP_WIFI_MODE_AP
- bool
- default y if ESP_WIFI_IS_SOFTAP
- default n if ESP_WIFI_IS_STATION
-
config ESP_WIFI_SSID
string "WiFi SSID"
default "myssid"
WiFi password (WPA or WPA2) for the example to use.
config MAX_STA_CONN
- int "Max STA conn"
+ int "Maximal STA connections"
default 4
help
Max number of the STA connects to AP.
-/* Simple WiFi Example
+/* WiFi softAP Example
This example code is in the Public Domain (or CC0 licensed, at your option.)
#include "lwip/err.h"
#include "lwip/sys.h"
-/* The examples use simple WiFi configuration that you can set via
- 'make menuconfig'.
+/* The examples use WiFi configuration that you can set via 'make menuconfig'.
If you'd rather not, just change the below entries to strings with
the config you want - ie #define EXAMPLE_WIFI_SSID "mywifissid"
*/
-#define EXAMPLE_ESP_WIFI_MODE_AP CONFIG_ESP_WIFI_MODE_AP //TRUE:AP FALSE:STA
#define EXAMPLE_ESP_WIFI_SSID CONFIG_ESP_WIFI_SSID
#define EXAMPLE_ESP_WIFI_PASS CONFIG_ESP_WIFI_PASSWORD
#define EXAMPLE_MAX_STA_CONN CONFIG_MAX_STA_CONN
/* FreeRTOS event group to signal when we are connected*/
-static EventGroupHandle_t wifi_event_group;
+static EventGroupHandle_t s_wifi_event_group;
-/* The event group allows multiple bits for each event,
- but we only care about one event - are we connected
- to the AP with an IP? */
-const int WIFI_CONNECTED_BIT = BIT0;
-
-static const char *TAG = "simple wifi";
+static const char *TAG = "wifi softAP";
static esp_err_t event_handler(void *ctx, system_event_t *event)
{
switch(event->event_id) {
- case SYSTEM_EVENT_STA_START:
- esp_wifi_connect();
- break;
- case SYSTEM_EVENT_STA_GOT_IP:
- ESP_LOGI(TAG, "got ip:%s",
- ip4addr_ntoa(&event->event_info.got_ip.ip_info.ip));
- xEventGroupSetBits(wifi_event_group, WIFI_CONNECTED_BIT);
- break;
case SYSTEM_EVENT_AP_STACONNECTED:
ESP_LOGI(TAG, "station:"MACSTR" join, AID=%d",
MAC2STR(event->event_info.sta_connected.mac),
MAC2STR(event->event_info.sta_disconnected.mac),
event->event_info.sta_disconnected.aid);
break;
- case SYSTEM_EVENT_STA_DISCONNECTED:
- esp_wifi_connect();
- xEventGroupClearBits(wifi_event_group, WIFI_CONNECTED_BIT);
- break;
default:
break;
}
void wifi_init_softap()
{
- wifi_event_group = xEventGroupCreate();
+ s_wifi_event_group = xEventGroupCreate();
tcpip_adapter_init();
ESP_ERROR_CHECK(esp_event_loop_init(event_handler, NULL));
EXAMPLE_ESP_WIFI_SSID, EXAMPLE_ESP_WIFI_PASS);
}
-void wifi_init_sta()
-{
- wifi_event_group = xEventGroupCreate();
-
- tcpip_adapter_init();
- ESP_ERROR_CHECK(esp_event_loop_init(event_handler, NULL) );
-
- wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();
- ESP_ERROR_CHECK(esp_wifi_init(&cfg));
- wifi_config_t wifi_config = {
- .sta = {
- .ssid = EXAMPLE_ESP_WIFI_SSID,
- .password = EXAMPLE_ESP_WIFI_PASS
- },
- };
-
- ESP_ERROR_CHECK(esp_wifi_set_mode(WIFI_MODE_STA) );
- ESP_ERROR_CHECK(esp_wifi_set_config(ESP_IF_WIFI_STA, &wifi_config) );
- ESP_ERROR_CHECK(esp_wifi_start() );
-
- ESP_LOGI(TAG, "wifi_init_sta finished.");
- ESP_LOGI(TAG, "connect to ap SSID:%s password:%s",
- EXAMPLE_ESP_WIFI_SSID, EXAMPLE_ESP_WIFI_PASS);
-}
-
void app_main()
{
//Initialize NVS
}
ESP_ERROR_CHECK(ret);
-#if EXAMPLE_ESP_WIFI_MODE_AP
ESP_LOGI(TAG, "ESP_WIFI_MODE_AP");
wifi_init_softap();
-#else
- ESP_LOGI(TAG, "ESP_WIFI_MODE_STA");
- wifi_init_sta();
-#endif /*EXAMPLE_ESP_WIFI_MODE_AP*/
-
}
--- /dev/null
+#
+# This is a project Makefile. It is assumed the directory this Makefile resides in is a
+# project subdirectory.
+#
+
+PROJECT_NAME := wifi_station
+
+include $(IDF_PATH)/make/project.mk
+
--- /dev/null
+# WiFi station example
+
+(See the README.md file in the upper level 'examples' directory for more information about examples.)
+
+
+## How to use example
+
+### Configure the project
+
+```
+make menuconfig
+```
+
+* Set serial port under Serial Flasher Options.
+
+* Set WiFi SSID and WiFi Password and Maximum retry under Example Configuration Options.
+
+### Build and Flash
+
+Build the project and flash it to the board, then run monitor tool to view serial output:
+
+```
+make -j4 flash monitor
+```
+
+(To exit the serial monitor, type ``Ctrl-]``.)
+
+See the Getting Started Guide for full steps to configure and use ESP-IDF to build projects.
+
+## Example Output
+
+There is the console output for station connects to ap successfully:
+```
+I (727) wifi station: ESP_WIFI_MODE_STA
+I (727) wifi: wifi driver task: 3ffc0c68, prio:23, stack:3584, core=0
+I (727) wifi: wifi firmware version: 19b3110
+I (727) wifi: config NVS flash: enabled
+I (727) wifi: config nano formating: disabled
+I (737) system_api: Base MAC address is not set, read default base MAC address from BLK0 of EFUSE
+I (747) system_api: Base MAC address is not set, read default base MAC address from BLK0 of EFUSE
+I (777) wifi: Init dynamic tx buffer num: 32
+I (777) wifi: Init data frame dynamic rx buffer num: 32
+I (777) wifi: Init management frame dynamic rx buffer num: 32
+I (777) wifi: Init static rx buffer size: 1600
+I (787) wifi: Init static rx buffer num: 10
+I (787) wifi: Init dynamic rx buffer num: 32
+I (907) phy: phy_version: 3960, 5211945, Jul 18 2018, 10:40:07, 0, 0
+I (907) wifi: mode : sta (30:ae:a4:80:45:68)
+I (907) wifi station: wifi_init_sta finished.
+I (907) wifi station: connect to ap SSID:myssid password:mypassword
+I (1027) wifi: n:6 0, o:1 0, ap:255 255, sta:6 0, prof:1
+I (2017) wifi: state: init -> auth (b0)
+I (2017) wifi: state: auth -> assoc (0)
+I (2027) wifi: state: assoc -> run (10)
+I (2067) wifi: connected with myssid, channel 6
+I (2067) wifi: pm start, type: 1
+
+I (3227) event: sta ip: 172.20.10.7, mask: 255.255.255.240, gw: 172.20.10.1
+I (3227) wifi station: got ip:172.20.10.7
+```
+
+There is the console output for station connects to ap failed:
+```
+I (728) wifi station: ESP_WIFI_MODE_STA
+I (728) wifi: wifi driver task: 3ffc0c68, prio:23, stack:3584, core=0
+I (728) wifi: wifi firmware version: 19b3110
+I (728) wifi: config NVS flash: enabled
+I (738) wifi: config nano formating: disabled
+I (738) system_api: Base MAC address is not set, read default base MAC address from BLK0 of EFUSE
+I (748) system_api: Base MAC address is not set, read default base MAC address from BLK0 of EFUSE
+I (778) wifi: Init dynamic tx buffer num: 32
+I (778) wifi: Init data frame dynamic rx buffer num: 32
+I (778) wifi: Init management frame dynamic rx buffer num: 32
+I (788) wifi: Init static rx buffer size: 1600
+I (788) wifi: Init static rx buffer num: 10
+I (788) wifi: Init dynamic rx buffer num: 32
+I (908) phy: phy_version: 3960, 5211945, Jul 18 2018, 10:40:07, 0, 0
+I (908) wifi: mode : sta (30:ae:a4:80:45:68)
+I (908) wifi station: wifi_init_sta finished.
+I (918) wifi station: connect to ap SSID:myssid password:mypassword
+I (3328) wifi station: retry to connect to the AP
+I (3328) wifi station: connect to the AP fail
+
+I (5738) wifi station: retry to connect to the AP
+I (5738) wifi station: connect to the AP fail
+
+I (8148) wifi station: retry to connect to the AP
+I (8148) wifi station: connect to the AP fail
+
+I (10558) wifi station: retry to connect to the AP
+I (10558) wifi station: connect to the AP fail
+
+I (12968) wifi station: retry to connect to the AP
+I (12968) wifi station: connect to the AP fail
+
+I (15378) wifi station: connect to the AP fail
+```
--- /dev/null
+menu "Example Configuration"
+
+config ESP_WIFI_SSID
+ string "WiFi SSID"
+ default "myssid"
+ help
+ SSID (network name) for the example to connect to.
+
+config ESP_WIFI_PASSWORD
+ string "WiFi Password"
+ default "mypassword"
+ help
+ WiFi password (WPA or WPA2) for the example to use.
+
+config ESP_MAXIMUM_RETRY
+ int "Maximum retry"
+ default 5
+ help
+ Set the Maximum retry to avoid station reconnecting to the AP unlimited when the AP is really inexistent.
+endmenu
--- /dev/null
+#
+# Main component makefile.
+#
+# This Makefile can be left empty. By default, it will take the sources in the
+# src/ directory, compile them and link them into lib(subdirectory_name).a
+# in the build directory. This behaviour is entirely configurable,
+# please read the ESP-IDF documents if you need to do this.
+#
--- /dev/null
+/* WiFi station Example
+
+ This example code is in the Public Domain (or CC0 licensed, at your option.)
+
+ Unless required by applicable law or agreed to in writing, this
+ software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
+ CONDITIONS OF ANY KIND, either express or implied.
+*/
+#include <string.h>
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+#include "freertos/event_groups.h"
+#include "esp_system.h"
+#include "esp_wifi.h"
+#include "esp_event_loop.h"
+#include "esp_log.h"
+#include "nvs_flash.h"
+
+#include "lwip/err.h"
+#include "lwip/sys.h"
+
+/* The examples use WiFi configuration that you can set via 'make menuconfig'.
+
+ If you'd rather not, just change the below entries to strings with
+ the config you want - ie #define EXAMPLE_WIFI_SSID "mywifissid"
+*/
+#define EXAMPLE_ESP_WIFI_SSID CONFIG_ESP_WIFI_SSID
+#define EXAMPLE_ESP_WIFI_PASS CONFIG_ESP_WIFI_PASSWORD
+#define EXAMPLE_ESP_MAXIMUM_RETRY CONFIG_ESP_MAXIMUM_RETRY
+
+/* FreeRTOS event group to signal when we are connected*/
+static EventGroupHandle_t s_wifi_event_group;
+
+/* The event group allows multiple bits for each event, but we only care about one event
+ * - are we connected to the AP with an IP? */
+const int WIFI_CONNECTED_BIT = BIT0;
+
+static const char *TAG = "wifi station";
+
+static int s_retry_num = 0;
+
+static esp_err_t event_handler(void *ctx, system_event_t *event)
+{
+ switch(event->event_id) {
+ case SYSTEM_EVENT_STA_START:
+ esp_wifi_connect();
+ break;
+ case SYSTEM_EVENT_STA_GOT_IP:
+ ESP_LOGI(TAG, "got ip:%s",
+ ip4addr_ntoa(&event->event_info.got_ip.ip_info.ip));
+ s_retry_num = 0;
+ xEventGroupSetBits(s_wifi_event_group, WIFI_CONNECTED_BIT);
+ break;
+ case SYSTEM_EVENT_STA_DISCONNECTED:
+ {
+ if (s_retry_num < EXAMPLE_ESP_MAXIMUM_RETRY) {
+ esp_wifi_connect();
+ xEventGroupClearBits(s_wifi_event_group, WIFI_CONNECTED_BIT);
+ s_retry_num++;
+ ESP_LOGI(TAG,"retry to connect to the AP");
+ }
+ ESP_LOGI(TAG,"connect to the AP fail\n");
+ break;
+ }
+ default:
+ break;
+ }
+ return ESP_OK;
+}
+
+void wifi_init_sta()
+{
+ s_wifi_event_group = xEventGroupCreate();
+
+ tcpip_adapter_init();
+ ESP_ERROR_CHECK(esp_event_loop_init(event_handler, NULL) );
+
+ wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();
+ ESP_ERROR_CHECK(esp_wifi_init(&cfg));
+ wifi_config_t wifi_config = {
+ .sta = {
+ .ssid = EXAMPLE_ESP_WIFI_SSID,
+ .password = EXAMPLE_ESP_WIFI_PASS
+ },
+ };
+
+ ESP_ERROR_CHECK(esp_wifi_set_mode(WIFI_MODE_STA) );
+ ESP_ERROR_CHECK(esp_wifi_set_config(ESP_IF_WIFI_STA, &wifi_config) );
+ ESP_ERROR_CHECK(esp_wifi_start() );
+
+ ESP_LOGI(TAG, "wifi_init_sta finished.");
+ ESP_LOGI(TAG, "connect to ap SSID:%s password:%s",
+ EXAMPLE_ESP_WIFI_SSID, EXAMPLE_ESP_WIFI_PASS);
+}
+
+void app_main()
+{
+ //Initialize NVS
+ esp_err_t ret = nvs_flash_init();
+ if (ret == ESP_ERR_NVS_NO_FREE_PAGES || ret == ESP_ERR_NVS_NEW_VERSION_FOUND) {
+ ESP_ERROR_CHECK(nvs_flash_erase());
+ ret = nvs_flash_init();
+ }
+ ESP_ERROR_CHECK(ret);
+
+ ESP_LOGI(TAG, "ESP_WIFI_MODE_STA");
+ wifi_init_sta();
+}
projects / esp-idf / commitdiff