add : add http example

examples/ap_mode_listen/ap_mode_listen.ino

@@ -76,8 +76,6 @@ int32_t client_socket[5]={0};
 static const uint16_t SERVER_PORT = 8888; 
 
 
-
-
 void setup()
 {
     debug.begin(115200);

examples/sta_http_get/sta_http_get.ino

@@ -0,0 +1,253 @@
+/*
+ *  
+ * Copyright (c) 2019 Seeed Technology Co., Ltd.
+ * Website    : www.seeed.cc
+ * Author     : downey
+ * Create Time: Jan 2019
+ * Change Log :
+ *
+ * The MIT License (MIT)
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include <Wire.h>
+#include "seeed_air602.h"
+#include "SeeedOLED.h"
+
+
+// Architecture specific include
+#if defined(ARDUINO_ARCH_AVR)
+#pragma message("Defined architecture for ARDUINO_ARCH_AVR.")
+SoftwareSerial softSerial(2,3);
+#define SERIAL Serial
+
+#elif defined(ARDUINO_ARCH_SAM)
+#pragma message("Defined architecture for ARDUINO_ARCH_SAM.")
+#define SERIAL SerialUSB
+
+#elif defined(ARDUINO_ARCH_SAMD)
+#pragma message("Defined architecture for ARDUINO_ARCH_SAMD.")	
+#define SERIAL SerialUSB
+
+#elif defined(ARDUINO_ARCH_STM32F4)
+#pragma message("Defined architecture for ARDUINO_ARCH_STM32F4.")
+#define SERIAL SerialUSB
+#else
+SoftwareSerial softSerial(2,3);
+#define SERIAL Serial
+#endif
+
+#define debug  SERIAL
+String msg;
+AtWifi wifi;
+
+String SSID = "STU-EE";
+String PSWD = "stu-ee-2022";
+
+String date;
+String city;
+String temperature;
+String humidity;
+
+void getTargetString(String msg,String &target)
+{
+    for(int i=0;msg[i] != '\"';i++)
+    {
+        target += msg[i];
+    }
+}
+
+
+int32_t parse_http_value(String msg)
+{
+    date.remove(0,date.length());
+    city.remove(0,city.length());
+    temperature.remove(0,temperature.length());
+    humidity.remove(0,humidity.length());
+
+    int32_t index = 0;
+    index = msg.indexOf("\"days\"");
+    debug.print("index = ");
+    debug.println(index);
+    if(index < 0){
+        return -1;
+    }
+    //Get date
+    msg.remove(0,index + 8);
+    getTargetString(msg,date);
+    //debug.println(date);
+
+    index = msg.indexOf("\"cityno\"");
+    debug.println(index);
+    if(index < 0){
+        return -1;
+    }
+    msg.remove(0,index + 10);
+    getTargetString(msg,city);
+    //debug.println(city);
+
+    index = msg.indexOf("\"temperature_curr\"");
+    if(index < 0){
+        return -1;
+    }
+    msg.remove(0,index + 20);
+    getTargetString(msg,temperature);
+    //debug.println(temperature);
+
+    index = msg.indexOf("\"humidity\"");
+    if(index < 0){
+        return -1;
+    }
+    msg.remove(0,index + 12);
+    getTargetString(msg,humidity);
+    debug.println(humidity);
+
+    return 0;
+    //debug.println(msg);
+}
+
+
+void setup()
+{
+    Wire.begin();
+    SeeedOled.init();  //initialze SEEED OLED display
+    SeeedOled.clearDisplay();          //clear the screen and set start position to top left corner
+
+    debug.begin(115200);
+     #if defined(SAMD21)
+        wifi.begin(Serial,9600);
+    #else
+        wifi.begin(softSerial,9600);
+    #endif
+
+
+
+    wifi.wifiReset();
+    delay(1000);
+
+    if(!wifi.wifiSetMode(STA))
+    {
+        debug.println("Set config mode failed!");
+        return ;
+    }
+    delay(100);
+    if(!wifi.wifiStaSetTargetApSsid(SSID)){
+        debug.println("Set target AP ssid failed!!");
+        return;
+    }
+    delay(100);
+    if(!wifi.wifiStaSetTargetApPswd(PSWD)){
+        debug.println("Set target AP password failed!!");
+        return;
+    }
+    delay(100);
+
+    if(!wifi.joinNetwork())
+    {
+        debug.println("Join to AP network failed!!");
+        return;
+    }
+    delay(2000);
+
+
+    debug.println("Connect to target wifi : ");
+    debug.print("Target AP SSID = ");
+    debug.println(SSID);
+    debug.print("Target AP PSWD = ");
+    debug.println(PSWD);
+    debug.println("OK!");
+
+
+    if(!wifi.setSocketAutoReport(ENABLE))
+    {
+        debug.println("Set socket auto-report failed!!");
+        return;
+    }
+    /*
+    if(!wifi.wifiHttpService("http://api.k780.com/?app=weather.today&weaid=1&appkey=10003&sign=b59bc3ef6191eb9f747dd4e83c99f2a4&format=json",HTTP_GET,msg))
+    {
+        debug.println("Get http text failed!!");
+    }*/
+
+    SeeedOled.setNormalDisplay();      //Set display to normal mode (i.e non-inverse mode)
+    SeeedOled.setPageMode();           //Set addressing mode to Page Mode
+    //parse_http_value(msg);
+}
+
+
+void loop(void)
+{
+    if(!wifi.wifiHttpService("http://api.k780.com/?app=weather.today&weaid=1&appkey=10003&sign=b59bc3ef6191eb9f747dd4e83c99f2a4&format=json",HTTP_GET,msg))
+    {
+        debug.println("Get http text failed!!");
+    }
+    if(parse_http_value(msg) < 0 )
+    {
+        debug.println("Parse http text failed!!");
+         SeeedOled.setTextXY(0,0);          //Set the cursor to Xth Page, Yth Column  
+        SeeedOled.putString("date:"); //Print the String
+        SeeedOled.setTextXY(1,0);
+        SeeedOled.putString("                  ");
+         SeeedOled.setTextXY(2,0);
+        SeeedOled.putString("city:");
+        SeeedOled.setTextXY(3,0);
+        SeeedOled.putString("                  ");
+        SeeedOled.setTextXY(4,0);
+        SeeedOled.putString("temp:");
+        SeeedOled.setTextXY(5,0);
+        SeeedOled.putString("                  ");
+        SeeedOled.setTextXY(6,0);
+        SeeedOled.putString("humi:");
+        SeeedOled.setTextXY(7,0);
+        SeeedOled.putString("                  ");
+    }
+    else
+    {
+        SeeedOled.setTextXY(0,0);          //Set the cursor to Xth Page, Yth Column  
+        SeeedOled.putString("date:"); //Print the String
+        SeeedOled.setTextXY(1,0);
+        SeeedOled.putString("    ");
+        SeeedOled.putString(date.c_str());
+        SeeedOled.putString("    ");
+
+        SeeedOled.setTextXY(2,0);
+        SeeedOled.putString("city:");
+        SeeedOled.setTextXY(3,0);
+        SeeedOled.putString("    ");
+        SeeedOled.putString(city.c_str());
+        SeeedOled.putString("    ");
+
+        SeeedOled.setTextXY(4,0);
+        SeeedOled.putString("temp:");
+        SeeedOled.setTextXY(5,0);
+        SeeedOled.putString("       ");
+        SeeedOled.putString(temperature.c_str());
+        SeeedOled.putString("       ");
+
+        SeeedOled.setTextXY(6,0);
+        SeeedOled.putString("humi:");
+        SeeedOled.setTextXY(7,0);
+        SeeedOled.putString("       ");
+        SeeedOled.putString(humidity.c_str());
+        SeeedOled.putString("       ");
+    }
+    delay(5000);
+}
+