Diff: main.cpp

Revision:

0:5d0d5244d683

Child:

2:06e2b95bd224

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu Sep 03 01:11:42 2015 +0000
@@ -0,0 +1,271 @@
+
+#include "mbed.h"
+#include "EthernetInterface.h"
+#include "Adafruit_SSD1306.h"
+
+/*
+ *    Sheild LED 
+ */
+//    DigitalOut rled(D9);
+//    DigitalOut gled(D10);
+//    DigitalOut bled(D11);
+    
+/*
+ *    W7500 onboard LED 
+ */
+    DigitalOut rled(LED1);
+    DigitalOut gled(LED2);
+    DigitalOut bled(LED3);
+
+
+class I2CPreInit : public I2C
+{
+public:
+    I2CPreInit(PinName sda, PinName scl) : I2C(sda, scl)
+    {
+        frequency(100000);
+        start();
+    };
+};
+
+I2CPreInit gI2C(PA_10,PA_9);
+
+/*  
+ *   set OLED  
+ */
+Adafruit_SSD1306_I2c gOled(gI2C,NC,0x78,64,128);
+
+
+/*  
+ *   LED desplay functions  
+ */
+void clean(){
+    rled = 0;
+    gled = 0;
+    bled = 1;
+}
+void clouds(){
+    rled = 0;
+    gled = 0;
+    bled = 0;
+}
+void thunderstorm(){
+    while(1){
+            rled = 0;
+            gled = 0;
+            bled = 0;
+            wait(0.5);
+            rled = 0;
+            gled = 0;
+            bled = 0;
+            wait(0.5);
+    };
+}
+void rain(){
+    rled = 1;
+    gled = 1;
+    bled = 0;
+}
+void mist(){
+    while(1){
+            rled = 1;
+            gled = 1;
+            bled = 0;
+            wait(0.5);
+            rled = 1;
+            gled = 1;
+            bled = 1;
+            wait(0.5);
+    };
+}
+void haze(){
+    rled = 0;
+    gled = 1;
+    bled = 0;
+}
+void fog(){
+    while(1){
+            rled = 1;
+            gled = 0;
+            bled = 0;
+            wait(1.0);
+            rled = 1;
+            gled = 1;
+            bled = 0;
+            wait(1.0);
+    };
+}
+void error(){
+    rled = 1;
+    gled = 1;
+    bled = 1;
+}
+
+/* 
+ *   main
+ */
+int main() {
+   
+    int phy_link;
+    printf("Wait a second...\r\n");
+    uint8_t mac_addr[6] = {0x00, 0x08, 0xDC, 0x03, 0x04, 0x02}; 
+
+    EthernetInterface eth;    
+    
+    eth.init(mac_addr); //Use DHCP
+    
+    while(1){
+    
+    eth.connect();
+    
+   /* 
+    *    phy link 
+    */
+    do{
+        phy_link = eth.ethernet_link();
+        printf("...");
+        wait(2);
+    }while(!phy_link);
+    printf("\r\n");
+     
+    printf("IP Address is %s\r\n\r\n", eth.getIPAddress()); 
+    
+   /* 
+    *    TCP socket connect to openweather server 
+    */
+    TCPSocketConnection sock;
+    sock.connect("api.openweathermap.org", 80);
+    
+    
+   /*  
+    *    GET method, to request weather forecast  
+    */
+    char http_cmd[] = "GET /data/2.5/weather?q=Seoul,kr HTTP/1.0\n\n";
+    //char http_cmd[] = "GET /data/2.5/weather?q=London,uk HTTP/1.0\n\n";
+    //char http_cmd[] = "GET /data/2.5/weather?q=Berlin,de HTTP/1.0\n\n";
+    sock.send_all(http_cmd, sizeof(http_cmd)-1);
+    
+   /* 
+    *    get data into buffer
+    */
+    char buffer[1024];
+    int ret;
+    while (true) {
+        ret = sock.receive(buffer, sizeof(buffer)-1);
+        if (ret <= 0)
+            break;
+        buffer[ret] = '\0';
+        printf("Received %d chars from server: %s\n", ret, buffer);     
+    }
+    printf("\r\n\r\n");
+    
+   /* 
+    *    parsing current date, weather, city, tempurature 
+    */
+    char *date;
+    char *weather;
+    char *city;
+    char *temper;
+    
+    char cur_date[17] = {0};
+    char weather_con[15] = {0};
+    char city_name[10] = {0};
+    char temper_data[3] = {0};
+   
+    int temp;
+    int num100, num10, num1;
+    
+   /*
+    *    parding date
+    */
+    date = strstr(buffer, "Date");
+    for(int x=0;x<17;x++){
+        cur_date[x] = date[x+6];
+    }
+        
+   /*
+    *    parsing weather condition
+    */ 
+    weather = strstr(buffer, "main");
+    for(int i=0; i<15;i++){
+        weather_con[i] = weather[i+7];
+        if(weather_con[i] == 34){
+            weather_con[i] = 0;
+            break;
+        }
+    }
+    
+   /*
+    *    parsing city name
+    */
+    city = strstr(buffer, "name");
+    for(int j=0; j<10;j++){
+        city_name[j] = city[j+7];
+        if(city_name[j] == 34){
+            city_name[j] = 0;
+            break;
+        }
+    }
+ 
+   /*
+    *    parsing current tempurature
+    */
+    temper = strstr(buffer, "temp");
+    for(int k=0; k<3;k++){
+        temper_data[k] = temper[k+6];
+    }
+       
+   /*
+    *    kelvin to celius converter
+    */
+    num100 = temper_data[0] - 48 - 2;
+    num10 = temper_data[1] - 48 - 7;
+    num1 = temper_data[2] - 48 - 3;
+    
+    temp = num100*100 + num10*10 + num1;
+    
+   /* 
+    *    printf  
+    */
+    printf("city name   :  %s\r\n",  city_name);
+    printf("weather     :  %s\r\n",  weather_con);
+    printf("temperature :  %d\r\n\r\n",  temp);
+    
+   /*   
+    *    OLED Display
+    */
+    gOled.begin();
+    gOled.clearDisplay();
+    
+    gOled.printf("%s\n", cur_date);
+    gOled.printf("City    : %s\n", city_name);
+    gOled.printf("Weather : %s\n", weather_con);
+    gOled.printf("Temper  : %d\n", temp);
+    gOled.display();
+    gOled.setTextCursor(0,0);
+    
+   /* 
+    *    LED display rely on weather condition
+    */
+    if(strcmp(weather_con,"Clouds")==0)            clouds();
+    else if(strcmp(weather_con,"Rain")==0)         rain();
+    else if(strcmp(weather_con,"Thunderstorm")==0) thunderstorm();
+    else if(strcmp(weather_con,"Clean")==0)        clean();
+    else if(strcmp(weather_con,"Mist")==0)         mist();
+    else if(strcmp(weather_con,"Haze")==0)         haze();
+    else if(strcmp(weather_con,"Fog")==0)          fog();
+    else error();
+
+
+    sock.close();
+    
+    eth.disconnect();
+    
+   /* 
+    *    everytime in delay, request weather forecast 
+    */
+    wait(60.0);
+    
+   };
+
+}
\ No newline at end of file