Diff: main.cpp

Revision:

3:623e2b67ebaa

Parent:

2:ae1a5862504b

--- a/main.cpp	Fri Sep 16 15:36:31 2016 +0000
+++ b/main.cpp	Fri Dec 16 02:56:13 2016 +0000
@@ -1,86 +1,125 @@
 #include "mbed.h"
-#include "xbee.h"
 #include "C12832_lcd.h"
+#include "LM75B.h"
 #include <string>
-#include "EthernetInterface.h"
+#include "WiflyInterface.h"
+#include "rtos.h"
+#include "LM75B.h"
+
+class Watchdog {
+public:
+// Load timeout value in watchdog timer and enable
+    void kick(float s) {
+        LPC_WDT->WDCLKSEL = 0x1;                // Set CLK src to PCLK
+        uint32_t clk = SystemCoreClock / 16;    // WD has a fixed /4 prescaler, PCLK default is /4
+        LPC_WDT->WDTC = s * (float)clk;
+        LPC_WDT->WDMOD = 0x3;                   // Enabled and Reset
+        kick();
+    }
+// "kick" or "feed" the dog - reset the watchdog timer
+// by writing this required bit pattern
+    void kick() {
+        LPC_WDT->WDFEED = 0xAA;
+        LPC_WDT->WDFEED = 0x55;
+    }
+};
+ 
+// Setup the watchdog timer
+Watchdog wdt;
 
-xbee xbee1(p9,p10,p30); //Initalise xbee_lib
+WiflyInterface wifly(p9, p10, p30, p29, "SSID", "PASSWORD", WPA);
+AnalogIn ain(p17);
 C12832_LCD lcd;
-DigitalOut LanLED(LED1);
-DigitalOut XbeeLED(LED2);
-DigitalOut LanDataLED(LED3);
-EthernetInterface eth;
+DigitalOut led [] ={(LED1),(LED2),(LED3),(LED4)};
+LM75B tempSensor(p28,p27);
+const char *server_ip="192.168.10.2";
+const int server_port=40000;
+char status_data[100];
+
+const char* tempFormat="0;TechRoomB_Monitor;BlockB_Temperature;%f";
+void sendTempReading () {
+    led[2]=1;
+    TCPSocketConnection conn;
+    
+    for (int i=0;i<100;i++) status_data[i]=0;
+    snprintf(status_data,100,tempFormat,(((float)tempSensor)+55)/175);
 
-bool setupEthernet() {
+    led[3]=1;
+    if (conn.connect(server_ip,server_port)==0 && conn.send_all(status_data,100)>=0); wdt.kick();
+    led[3]=0;
+    
+    wait(0.1);
+    conn.close();
+    led[2]=0;
+}
+
+const char* currentFormat="0;TechRoomB_Monitor;BlockB_AirCondCurrent;%f";
+void sendCurrentReading () {
+    led[0]=1;
+    TCPSocketConnection conn;
+    
+    float max=0.0;
+    time_t start=time(NULL);
+    while (time(NULL)-start<2) {
+        if (ain>0 && ain<0.3 && ain>max) max=ain;
+    }
+    
     lcd.cls();
     lcd.locate(0,0);
-    lcd.printf("Start Ethernet Setup\n");
+    lcd.printf("Current : %f",max);
+        
+    for (int i=0;i<100;i++) status_data[i]=0;
+    snprintf(status_data,100,currentFormat,max*3);
+    
+    led[1]=1;
+    if (conn.connect(server_ip,server_port)==0 && conn.send_all(status_data,100)>=0); wdt.kick();
+    led[1]=0;
     
-    eth.init("172.16.0.2","255.255.0.0","172.16.0.1");
-    if(eth.connect()!=0) {
-        lcd.printf("Not connected!\n");
-        return false;
-    } else {
-        lcd.printf("IP Address : %s\n", eth.getIPAddress());
-        return true;
+    wait(0.1);
+    conn.close();
+    led[0]=0;
+}
+
+void sendReading() {
+    sendCurrentReading();
+    wait(3.0);
+    sendTempReading();
+}
+
+void setupWifly() {
+    lcd.cls();
+    lcd.locate(0,0);
+    lcd.printf("Start WiFi Setup\n");
+    
+    wifly.init();
+}
+
+void checkWiflyConnection() {
+    if (!wifly.is_associated()) {
+        lcd.cls();
+        lcd.locate(0,0);
+        lcd.printf("Reconnecting...");
+        while (!wifly.connect());
+        lcd.cls();
+        lcd.locate(0,0);
+        lcd.printf("IP Address : %s\n", wifly.getIPAddress());
     }
 }
 
-void setupXbee() {
-    lcd.cls();
-    lcd.locate(0,0);
-    lcd.printf("Start Xbee Setup\n");
-    xbee1.Reset();
-    xbee1.ConfigMode();
-    xbee1.ResetConfig();
-    xbee1.SetPanId(123);
-    xbee1.ExitConfigMode();
-    lcd.printf("Done Setup!\n");
+void getCommand() {
+    checkWiflyConnection();
+    wdt.kick(120.0);
+    while (1) {
+        sendReading();
+        wait(60.0);
+    }
 }
 
 int main() {
-    bool flag=true;
-    flag=setupEthernet();
-    LanLED=flag;
-    wait(0.5);
-    setupXbee();
+    set_time(0);
+    mbed_interface_disconnect(); //Disable debugging to improve ADC precision. | Comment this if you need debugging via serial.
 
-    if (flag) {
-        UDPSocket socket;
-        socket.init();
-        Endpoint server;
-        server.set_address("172.16.0.1",40000);
-    
-        int count=0;
-        char read_data[202]; //Xbee buffer size is 202 bytes
-        
-        while(1) {
-            char temp[202];
-            XbeeLED=1;
-            xbee1.RecieveData(temp,10); //Read data from the XBee
-            XbeeLED=0;
-            for (int i=0;i<10 && temp[i]!='\0';i++) {
-                if (temp[i]=='|') {
-                    count=0;
-                } else if (temp[i]=='&') {
-                    string real_data="";
-                    for (int i2=0;i2<count;i2++) {
-                        real_data+=read_data[i2];
-                    }
-                    lcd.cls();
-                    lcd.locate(0,3);
-                    lcd.printf("%s",real_data);
-                    LanDataLED=1;
-                    socket.sendTo(server,read_data,real_data.length());
-                    LanDataLED=0;
-                    count=0;
-                    for (int i2=0;i2<202;i2++) {
-                        read_data[i2]='\0';
-                    }
-                } else {
-                    read_data[count++]=temp[i];
-                }
-            }
-        }
-    }
+    setupWifly();
+
+    getCommand();
 }
\ No newline at end of file