Diff: main.cpp

Revision:

0:4f9d1615d0e7

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Mon Jul 17 11:38:39 2017 +0000
@@ -0,0 +1,143 @@
+#include "mbed.h"
+#include "EthernetInterface.h"
+#include <string> 
+
+
+const char* ECHO_SERVER_ADDRESS = "10.2.134.30";
+const int ECHO_SERVER_PORT = 7;
+
+DigitalOut led1(D7);
+DigitalOut led2(D6);
+DigitalOut led3(D5);
+DigitalOut led4(D4);
+
+InterruptIn DataSwitch1(D3);
+InterruptIn DataSwitch2(D2);
+InterruptIn DataSwitch3(D1);
+InterruptIn DataSwitch4(D0);
+
+
+int prev_dataset = 0;
+char json_str[100];
+int button = 0;
+string channel = ("channel");
+char dataset = '1';
+
+
+void dataset1_cb() 
+{   
+    
+    button = 1; 
+}
+void dataset2_cb() 
+{
+    
+    button = 2;  
+}
+void dataset3_cb() 
+{
+    
+    button = 3;    
+}
+void dataset4_cb() 
+{
+    
+    button = 4; 
+}
+
+int main() 
+{
+    
+    DataSwitch1.rise(&dataset1_cb);
+    DataSwitch2.rise(&dataset2_cb);
+    DataSwitch3.rise(&dataset3_cb);
+    DataSwitch4.rise(&dataset4_cb);
+
+    EthernetInterface eth;
+    eth.init(); //Use DHCP
+    eth.connect();
+    printf("\nClient IP Address is %s\n", eth.getIPAddress());
+    
+    // Connect to Server
+    TCPSocketConnection socket;
+    while (socket.connect(ECHO_SERVER_ADDRESS, ECHO_SERVER_PORT) < 0) 
+    {
+        printf("Unable to connect to (%s) on port (%d)\n", ECHO_SERVER_ADDRESS, ECHO_SERVER_PORT);
+        wait(1);
+    }
+    printf("Connected to Server at %s\n",ECHO_SERVER_ADDRESS);
+    
+    while(1)
+    {   if (dataset != prev_dataset)
+        {
+            switch(dataset)
+            {   
+                case(0):
+                    break;
+                case(1):
+                    channel = "";
+                    dataset = '1';
+                    sprintf (json_str, "{\"channel\":%s,\"dataset\":%c\"}", channel, dataset);
+                    //printf("Sending  message to Server : '%s' \n",json_str);
+                    socket.send_all(json_str, sizeof(json_str) - 1);
+                    led1=1;
+                    led2=0;
+                    led3=0;
+                    led4=0;
+                    break;
+                case(2):
+                    channel = "";
+                    dataset = '2';
+                    sprintf (json_str, "{\"channel\":%s,\"dataset\":%c\"}", channel, dataset);
+                    //printf("Sending  message to Server : '%s' \n",json_str);
+                    socket.send_all(json_str, sizeof(json_str) - 1);
+                    led1=0;
+                    led2=1;
+                    led3=0;
+                    led4=0;
+                    break;
+                case(3):
+                    channel = "";
+                    dataset = '3';
+                    sprintf (json_str, "{\"channel\":%s,\"dataset\":%c\"}", channel, dataset);
+                    //printf("Sending  message to Server : '%s' \n",json_str);
+                    socket.send_all(json_str, sizeof(json_str) - 1);
+                    led1=0;
+                    led2=0;
+                    led3=1;
+                    led4=0;
+                    break;
+                case(4):
+                    channel = "";
+                    dataset = '4';
+                    sprintf (json_str, "{\"channel\":%s,\"dataset\":%c\"}", channel, dataset);
+                    //printf("Sending  message to Server : '%s' \n",json_str);
+                    socket.send_all(json_str, sizeof(json_str) - 1);
+                    led1=0;
+                    led2=0;
+                    led3=0;
+                    led4=1;       
+                    break;
+                default:
+                    break;  
+            }
+            prev_dataset = dataset;
+                    // Receive message from server
+            char buf[256];
+            int n = socket.receive(buf, 256);
+            buf[n] = '\0';
+            printf("Received message from server: '%s'\n", buf);
+        }
+        
+    
+
+    }
+    
+    // Clean up
+    socket.close();
+    eth.disconnect();
+    
+    while(true) {}
+}
+
+