Diff: main.cpp

Revision:

0:6b8e3f9fafbd

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu Oct 15 00:17:32 2015 +0000
@@ -0,0 +1,122 @@
+#include "mbed.h"
+#include "EthernetInterface.h"
+#include "Adafruit_SSD1306.h"
+
+class I2CPreInit : public I2C
+{
+public:
+    I2CPreInit(PinName sda, PinName scl) : I2C(sda, scl)
+    {
+        frequency(100000);
+        start();
+    };
+};
+
+I2CPreInit gI2C(PA_10,PA_9);
+Adafruit_SSD1306_I2c gOled(gI2C,NC,0x78,64,128);
+
+//internal led
+DigitalOut red_led(LED1,1);
+DigitalOut blue_led(LED3,1);
+
+int main()
+{
+    int phy_link;
+    printf("Wait a second...\r\n");
+    uint8_t mac_addr[6] = {0x00, 0x08, 0xDC, 0x00, 0x01, 0x09}; 
+    
+    EthernetInterface eth;
+    eth.init(mac_addr); //Use DHCP
+    
+    eth.connect();
+    
+    //phy link
+     do{
+        phy_link = eth.ethernet_link();
+        printf("...");
+        wait(2);
+     }while(!phy_link);
+     printf("IP Address is %s\r\n\r\n", eth.getIPAddress());
+
+    char buffer[1024];
+    int ret;
+
+    //BUS "GET /ws/rest/busarrivalservice?serviceKey=??&routeId=??&stationId=?? \n\n"
+    char http_cmd[] = "GET /ws/rest/busarrivalservice?serviceKey=1234567890&routeId=234000878&stationId=206000082 \n\n"; // 8100
+
+    while(1)
+    {
+        //TCP socket connect 
+        TCPSocketConnection sock;
+        sock.connect("openapi.gbis.go.kr", 80);
+    
+        sock.send_all(http_cmd, sizeof(http_cmd)-1);
+    
+        while (true)
+        {
+            ret = sock.receive(buffer, sizeof(buffer)-1);
+            
+            if (ret <= 0)
+                printf("fail\r\n");
+                //break;
+            else{
+                buffer[ret] = '\0';
+                printf("Received %d chars from server: %s\r\n", ret, buffer);
+                break;
+            }
+        }
+    printf("\r\n\r\n");
+    
+
+    // parsing data 
+    char *date;
+    char *bus_1st;
+    char *bus_2nd;
+    
+    char current_date[11] = {0};
+    char arrive_bus1[2] = {0};
+    char arrive_bus2[2] = {0};
+
+    date = strstr(buffer, "<queryTime>");
+    for(int i=0;i<10;i++){
+        current_date[i] = date[i+11];
+    }
+        
+    bus_1st = strstr(buffer, "<predictTime1>");
+    for(int i=0; i<2;i++){
+        arrive_bus1[i] = bus_1st[i+14];
+        if(arrive_bus1[i] == '<'){
+           arrive_bus1[i] = 0;
+           break;
+        }
+    }
+    
+    bus_2nd = strstr(buffer, "<predictTime2>");
+    for(int i=0; i<2;i++){
+        arrive_bus2[i] = bus_2nd[i+14];
+        if(arrive_bus2[i] == '<'){
+           arrive_bus2[i] = 0;
+           break;
+        }
+    }
+    
+    printf("current date :  %s\r\n",  current_date);
+    printf("arrival bus1 :  %s\r\n",  arrive_bus1);
+    printf("arrival bus2 :  %s\r\n",  arrive_bus2);
+      
+      
+    // OLED Display
+    gOled.begin();
+    gOled.clearDisplay();
+    
+    gOled.printf("%s\n\n", current_date);
+    gOled.printf("No.8100\n\n");
+    gOled.printf("You have %s mins\n\n", arrive_bus1);
+    gOled.printf("Next Bus %s mins\n", arrive_bus2);
+    gOled.display();
+    gOled.setTextCursor(0,0);
+    
+    wait(12);
+   };
+
+}
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