start webserver

main/main.c

@@ -4,9 +4,10 @@
 #include "freertos/event_groups.h"
 #include "esp_system.h"
 #include "esp_wifi.h"
-#include "esp_event_loop.h"
+#include "esp_event.h"
 #include "esp_log.h"
 #include "nvs_flash.h"
+#include <esp_http_server.h>
 
 #define WIFI_SSID "AndroidAP"
 #define WIFI_PASS "uyts6533"
@@ -16,6 +17,41 @@
 static EventGroupHandle_t wifi_event_group;
 const int CONNECTED_BIT = BIT0;
 
+static char* resp_str ="\
+		<input type=\"submit\" name=\"lamp_state\" onclick=\"sendState(this.value)\" value=\"ON\"> \
+		<input type=\"submit\" name=\"lamp_state\" onclick=\"sendState(this.value)\" value=\"OFF\"> \
+		<label class=\"switch\">\
+			<input type=\"checkbox\">\
+			<span class=\"slider\"></span>\
+		</label>\
+		</form> \
+		\
+		<input type=\"range\" min=\"0\" max=\"100\" value=\"0\" oninput=\"sendSlider(this.value)\" class=\"slider\" id=\"myRange\"> \
+		<script> \
+		function sendSlider(data) { \
+			const XHR = new XMLHttpRequest(); \
+			XHR.open('POST', '/hello'); \
+			XHR.send(\"brightness=\"+data); \
+		} \
+		function sendState(data) { \
+			const XHR = new XMLHttpRequest(); \
+			XHR.open('POST', '/hello'); \
+			XHR.send(\"lamp_state=\"+data); \
+		} \
+		</script> \
+		";
+
+static esp_err_t default_get_handler(httpd_req_t *req)
+{
+    httpd_resp_send(req, resp_str, strlen(resp_str));
+    return ESP_OK;
+}
+
+static const httpd_uri_t default_uri = {
+    .uri       = "/",
+    .method    = HTTP_GET,
+    .handler   = &default_get_handler
+};
 
 // Wifi event handler
 static esp_err_t event_handler(void *ctx, system_event_t *event)
@@ -32,6 +68,7 @@ static esp_err_t event_handler(void *ctx, system_event_t *event)
     
 	case SYSTEM_EVENT_STA_DISCONNECTED:
 		xEventGroupClearBits(wifi_event_group, CONNECTED_BIT);
+        printf("disconnected!\n");
         break;
     
 	default:
@@ -41,28 +78,6 @@ static esp_err_t event_handler(void *ctx, system_event_t *event)
 	return ESP_OK;
 }
 
-
-// Main task
-void main_task(void *pvParameter)
-{
-	// wait for connection
-	printf("Main task: waiting for connection to the wifi network... ");
-	xEventGroupWaitBits(wifi_event_group, CONNECTED_BIT, false, true, portMAX_DELAY);
-	printf("connected!\n");
-	
-	// print the local IP address
-	tcpip_adapter_ip_info_t ip_info;
-	ESP_ERROR_CHECK(tcpip_adapter_get_ip_info(TCPIP_ADAPTER_IF_STA, &ip_info));
-	printf("IP Address:  %s\n", ip4addr_ntoa(&ip_info.ip));
-	printf("Subnet mask: %s\n", ip4addr_ntoa(&ip_info.netmask));
-	printf("Gateway:     %s\n", ip4addr_ntoa(&ip_info.gw));
-	
-	while(1) {
-		vTaskDelay(1000 / portTICK_RATE_MS);
-	}
-}
-
-
 // Main application
 void app_main()
 {
@@ -98,9 +113,6 @@ void app_main()
     ESP_ERROR_CHECK(esp_wifi_start());
 	printf("Connecting to %s\n", WIFI_SSID);
 	
-	// start the main task
-    //xTaskCreate(&main_task, "main_task", 2048, NULL, 5, NULL);
-
     EventBits_t uxBits;
 	uxBits = xEventGroupWaitBits(wifi_event_group, CONNECTED_BIT, false, true, 5000 / portTICK_PERIOD_MS);
     if( ( uxBits & CONNECTED_BIT ) != 0 )
@@ -125,4 +137,13 @@ void app_main()
         esp_wifi_set_config(WIFI_IF_AP, &ap_config);
         ESP_ERROR_CHECK(esp_wifi_start());
     }
+    httpd_handle_t server = NULL;
+    httpd_config_t config = HTTPD_DEFAULT_CONFIG();
+
+    // Start the httpd server
+    printf("Starting server on port: '%d'", config.server_port);
+    if (httpd_start(&server, &config) == ESP_OK) {
+        // Set URI handlers
+        httpd_register_uri_handler(server, &default_uri);
+    }
 }