Diff: main.cpp

Revision:

1:2012c31aee1b

Parent:

0:8ca71ccb52db

Child:

2:817794b2f733

--- a/main.cpp	Mon Jun 06 11:45:26 2016 +0000
+++ b/main.cpp	Fri Jun 24 02:22:53 2016 +0000
@@ -2,96 +2,123 @@
 #include "ESP8266.h"
  
 Serial pc(USBTX,USBRX);
-AnalogIn pot(PTB0); // pir senor input
-ESP8266 wifi(PTE0, PTE1, 115200); // baud rate for wifi
-char snd[255],rcv[1000];
-char http_cmd[300];
- 
-//#define IP "data.sparkfun.com" 
-//#define IP "184.106.153.149"
-#define IP "192.168.0.39"
+
+//POT sensor 
+AnalogIn pot(PTB0); 
+
+//wifi UART port and baud rate
+ESP8266 wifi(PTE0, PTE1, 115200); 
+
+//buffers for wifi library
+char snd[255],resp[1000];
+char http_cmd[300], comm[300];
+
+int timeout = 3000; //timeout for wifi commands
+
+//SSID and password for connection
+#define SSID "Eduvance_WiFi"
+#define PASS "eduvance"
+
+//Remote IP
+#define IP "192.168.0.13"
+
+//ldrvalue global variable
+float ldrval = 0; 
+
+//Public and private keys for phant
+char* Public_Key = "wyJD1Pza1OCk1QEKk9K9C10zdyj3";
+char* Private_Key = "OrxMl9BLlOCvPZdBv4B4H3mDOAlx";
  
-float val = 0; //global variable
-
-char* Public_Key = "Xb3ovW3grvIMo31jd8p0HmPEba3O";
-char* Private_Key = "LPZe7qZLg7t0NnWbYD2XHrmB2AMq";
+//Wifi init function
+void wifi_initialize(void){
+    
+    pc.printf("******** Resetting wifi module ********\r\n");
+    wifi.Reset();
+    
+    //wait for 5 seconds for response, else display no response receiveed
+    if (wifi.RcvReply(resp, 5000))    
+        pc.printf("%s",resp);    
+    else
+        pc.printf("No response");
+    
+    pc.printf("******** Setting Station mode of wifi with AP ********\r\n");
+    wifi.SetMode(1);    // set transparent  mode
+    if (wifi.RcvReply(resp, timeout))    //receive a response from ESP
+        pc.printf("%s",resp);    //Print the response onscreen
+    else
+        pc.printf("No response while setting mode. \r\n");
+    
+    pc.printf("******** Joining network with SSID and PASS ********\r\n");
+    wifi.Join(SSID, PASS);     
+    if (wifi.RcvReply(resp, timeout))    
+        pc.printf("%s",resp);   
+    else
+        pc.printf("No response while connecting to network \r\n");
+        
+    pc.printf("******** Getting IP and MAC of module ********\r\n");
+    wifi.GetIP(resp);     
+    if (wifi.RcvReply(resp, timeout))    
+        pc.printf("%s",resp);    
+    else
+        pc.printf("No response while getting IP \r\n");
+        
+}
 
-/************ WiFi INTIALIZATION *********/
- 
-void wifi_initialize(void);
-void wifi_send(void);
- 
+void wifi_send(void){
+    
+    pc.printf("******** Setting WIFI UART passthrough ********\r\n");
+    wifi.setTransparent();          
+    if (wifi.RcvReply(resp, timeout))    
+        pc.printf("%s",resp);    
+    else
+        pc.printf("No response while setting wifi passthrough. \r\n");
+    wait(1);
+    
+    pc.printf("******** Setting single connection mode ********\r\n");
+    wifi.SetSingle();             
+    wifi.RcvReply(resp, timeout);
+    if (wifi.RcvReply(resp, timeout))    
+        pc.printf("%s",resp);    
+    else
+        pc.printf("No response while setting single connection \r\n");
+    wait(1);
+    
+    pc.printf("******** Starting TCP connection on IP and port ********\r\n");
+    wifi.startTCPConn(IP, 8080);    //cipstart
+    wifi.RcvReply(resp, timeout);
+    if (wifi.RcvReply(resp, timeout))    
+        pc.printf("%s",resp);    
+    else
+        pc.printf("No response while starting TCP connection \r\n");
+    wait(1);
+    
+    //create link 
+    sprintf(http_cmd,"/input/%s?private_key=%s&val=%0.2f",Public_Key,Private_Key,ldrval); 
+    
+    pc.printf("******** Sending URL to wifi ********\r\n");
+    wifi.sendURL(http_cmd, comm);   //cipsend and get command
+    if (wifi.RcvReply(resp, timeout))    
+        pc.printf("%s",resp);    
+    else
+        pc.printf("No response while sending URL \r\n");
+    
+    //wifi.SendCMD("AT+CIPCLOSE"); //Close the connection to server
+    //wifi.RcvReply(resp, timeout);
+    //pc.printf("%s", resp);
+}
+
 int main () {
     
-
- wifi_initialize();
- 
+    
+    wifi_initialize();
+    
     while (1) {
-       
-    val = pot.read();
-    pc.printf("\r\nPotentiometer value=%.3f \r\n", val);
-    pc.printf("Sending WiFi information\n\r");
-    wifi_send();
-    wait(4);
+        ldrval = pot.read();
+        pc.printf("Potentiometer ldrvalue=%.3f \r\n", ldrval);
+        
+        wifi_send();
+        wait(3);
     }
 }
     
-void wifi_initialize(){
-    
-    pc.baud(9600);   
-    pc.printf("SET mode to AP\r\n");
-    wifi.SetMode(1);    // set ESP mode to 1
-    wifi.RcvReply(rcv, 1000);    //receive a response from ESP
-    pc.printf("%s",rcv);    //Print the response onscreen
-    pc.printf("Conneting to AP\r\n");
-    wifi.Join("Eduvance_WiFi", "eduvance");     // Your wifi username & Password 
-    wifi.RcvReply(rcv, 1000);    //receive a response from ESP
-    pc.printf("%s", rcv);    //Print the response onscreen
-    wait(8);     //waits for response from ESP
-    pc.printf("Getting IP\r\n");    //get IP addresss from the connected AP
-    wifi.GetIP(rcv);    //receive an IP address from the AP
-    pc.printf("%s", rcv);
-    wait(5); // Delay 5 sec to give the pir time to get snapshut of the surrounding
-    pc.printf("Initializing WiFi\r\n"); 
-}
 
-void wifi_send(void){
-
-    strcpy(snd,"AT+CIPMODE=0");//Setting WiFi into MultiChannel mode
-    wifi.SendCMD(snd);
-    //pc.printf(snd);
-    wifi.RcvReply(rcv, 3000);
-    pc.printf("%s", rcv);
-    
-    //WIFI updates the Status to Thingspeak servers//
-    strcpy(snd,"AT+CIPMUX=1");//Setting WiFi into MultiChannel mode
-    wifi.SendCMD(snd);
-    //pc.printf(snd);
-    wifi.RcvReply(rcv, 3000);
-    pc.printf("%s", rcv);
-    
-    sprintf(snd,"AT+CIPSTART=4,\"TCP\",\"%s\",8080",IP); //Initiate connection with server
-    wifi.SendCMD(snd);
-    //pc.printf(snd);
-    wifi.RcvReply(rcv, 3000);
-    pc.printf("%s", rcv);
-    
-    sprintf(http_cmd,"GET /input/%s?private_key=%s&val=%0.2f HTTP/1.0\n\n",Public_Key,Private_Key,val); //Post values 
-    pc.printf("%d",strlen(http_cmd));
-    strcpy(snd,"AT+CIPSEND=4,105");    //Send Number of open connections,Characters to send 
-    wifi.SendCMD(snd);
-    //pc.printf(snd);
-    wifi.RcvReply(rcv, 3000);
-    pc.printf("%s", rcv);
-    
-    sprintf(snd,"GET /input/%s?private_key=%s&val=%0.2f HTTP/1.0\n\n",Public_Key,Private_Key,val); //Post values 
-    strcpy(snd, http_cmd);
-    pc.printf("%s",http_cmd);
-    wifi.SendCMD(http_cmd);
-    wifi.RcvReply(rcv, 3000);
-    pc.printf("%s", rcv);
-    
-    //wifi.SendCMD("AT+CIPCLOSE"); //Close the connection to server
-    //wifi.RcvReply(rcv, 3000);
-    //pc.printf("%s", rcv);
-}
\ No newline at end of file