4-11:Add example 4_11_WiFi_AP_Setup

sparkfun · Nov 24, 2024 · a8fdaa4 · a8fdaa4
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diff --git a/Example_Sketches/4_11_WiFi_AP_Setup/4_11_WiFi_AP_Setup.ino b/Example_Sketches/4_11_WiFi_AP_Setup/4_11_WiFi_AP_Setup.ino
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+/**********************************************************************
+  4_11_WiFi_AP_Setup.ino
+
+  Example sketch to demonstrate WiFi AP setup
+**********************************************************************/
+
+//****************************************
+// Includes
+//****************************************
+
+#include <Arduino.h>    // Built-in
+#include <ESPmDNS.h>    // Built-in
+#include <esp_wifi.h>   // IDF built-in
+#include <Network.h>    // Built-in
+#include <WiFi.h>       // Built-in
+
+#include <secrets.h>    // Host name, SSIDs and passwords
+
+bool RTK_CONFIG_MBEDTLS_EXTERNAL_MEM_ALLOC = false;
+
+#define systemPrintf    Serial.printf
+#define systemPrintln   Serial.println
+
+#define SERVER_PORT     80
+
+//****************************************
+// WiFi support
+//****************************************
+
+typedef uint8_t WIFI_CHANNEL_t;
+typedef uint16_t WIFI_START_LIST_t;
+
+bool debug;
+bool display;
+bool mDnsRunning;
+bool softApHasIp;
+bool softApRunning;
+int softApStationCount;
+
+//*********************************************************************
+// Entry point for the application
+void setup()
+{
+    // Initialize the USB serial port
+    Serial.begin(115200);
+    systemPrintln();
+    systemPrintf(__FILE__ "\r\n");
+
+    // Initialize WiFi
+    wifiBegin();
+}
+
+//*********************************************************************
+// Idle loop for core 1 of the application
+void loop()
+{
+    wifiUpdate();
+    serverUpdate();
+}
diff --git a/Example_Sketches/4_11_WiFi_AP_Setup/HTTP_Server.ino b/Example_Sketches/4_11_WiFi_AP_Setup/HTTP_Server.ino
@@ -0,0 +1,152 @@
+/*
+ WiFi Web Server LED Blink
+
+ A simple web server that lets you blink an LED via the web.
+*/
+
+#define LED_STATUS          2
+
+NetworkClient client;
+String headerLine;
+String pageTitle;
+NetworkServer * server;
+
+// Turn off the LED
+void ledOff()
+{
+    digitalWrite(LED_STATUS, LOW);
+}
+
+// Turn on the LED
+void ledOn()
+{
+    digitalWrite(LED_STATUS, HIGH);
+}
+
+// Initialize the server
+bool serverBegin(IPAddress ipAddress, uint16_t port)
+{
+    // Determine if the server is already started
+    if (!server)
+    {
+        // Allocate the server structure
+        server = new NetworkServer(ipAddress, port);
+        if (server)
+        {
+            server->begin();
+
+            // Display the server IP address and port for remote connections
+            Serial.printf("WiFi Server: %s:%d\r\n", ipAddress.toString().c_str(), port);
+
+            // Turn off the LED
+            ledOff();
+            pinMode(LED_STATUS, OUTPUT);
+        }
+        else
+            Serial.printf("ERROR: Failed to allocate the server!\r\n");
+    }
+
+    // Return the initialization status
+    return (server != nullptr);
+}
+
+void serverProcessRequest()
+{
+    int getPosition;
+
+    // Read the HTTP request from the remote client
+    while (client.available())
+    {
+        char c = client.read();
+
+        // Ignore this line
+        if (c == '\n')
+            headerLine = "";
+
+        // Build the header line
+        else if (c != '\r')
+            headerLine += c;
+
+        // The HTTP header ends with a blank line
+        // Display the web-page after receiving the entire request
+        else if (headerLine.length() == 0)
+        {
+            // Respond with the web page contents
+            // HTTP headers always start with a response code (e.g. HTTP/1.1 200 OK)
+            // and a content-type so the client knows what's coming, then a blank line:
+            client.println("HTTP/1.1 200 OK");
+            client.println("Content-type:text/html");
+            client.println();
+
+            // Web page contents
+            client.printf("<html>\r\n");
+            client.printf("  <head>\r\n");
+            client.printf("    <title>%s</title>\r\n", pageTitle.c_str());
+            client.printf("  </head>\r\n");
+            client.printf("  <body>\r\n");
+            client.printf("    <h1>Status %s</h1>\r\n", pageTitle.c_str());
+            client.printf("    Click <a href=\"/H\">here</a> to turn the status LED (pin %d) on.<br>\r\n", LED_STATUS);
+            client.printf("    Click <a href=\"/L\">here</a> to turn the status LED (pin %d) off.<br>\r\n", LED_STATUS);
+            client.printf("  </body>\r\n");
+            client.printf("</html>\r\n");
+
+            // The HTTP response ends with another blank line:
+            client.println();
+
+            // Break the client connection
+            client.stop();
+        }
+
+        // Process the request
+        if (headerLine.endsWith("GET /H"))
+        {
+            ledOn();
+            pageTitle = "LED On";
+        }
+        else if (headerLine.endsWith("GET /L"))
+        {
+            ledOff();
+            pageTitle = "LED Off";
+        }
+    }
+}
+
+void serverStop()
+{
+    if (server)
+    {
+        server->stop();
+        delete server;
+        server = nullptr;
+    }
+}
+
+// Update the server
+void serverUpdate()
+{
+    if (server)
+    {
+        // Wait for a client connection
+        if (!client)
+        {
+            client = server->accept();
+            if (client)
+            {
+                headerLine = "";
+                pageTitle = "LED Control";
+            }
+        }
+
+        // Determine is a new client connection request was received
+        if (client)
+        {
+            // Process the request from the server
+            if (client.connected())
+                serverProcessRequest();
+            else
+            {
+                client.stop();
+            }
+        }
+    }
+}