Monitors temperature using lm75b temperature sensor and it sends the data to thingspeak using esp8266 WIFI module.

Dependencies:   mbed LM75B

Revision:
2:e259a0cfc9f1
Parent:
1:8ab009672555
--- a/main.cpp	Sat Jun 17 09:53:27 2017 +0000
+++ b/main.cpp	Mon Apr 15 18:02:44 2019 +0000
@@ -1,117 +1,28 @@
 #include "mbed.h"
-#include "ESP8266.h"
+#include "LM75B.h"
+ 
  
-Serial pc(USBTX,USBRX);
-
-//POT sensor 
-AnalogIn pot(PTB0);
-
-//wifi UART port and baud rate
-ESP8266 wifi(PTE0, PTE1, 115200); 
-
-//buffers for wifi library
-char resp[1000];
-char http_cmd[300], comm[300];
-
-int timeout = 8000; //timeout for wifi commands
-
-//SSID and password for connection
-#define SSID "Eduvance" 
-#define PASS "eduvance123"  
-
-//Remote IP
-#define IP "184.106.153.149"
+Serial pc(USBTX, USBRX);
+DigitalOut led1(LED1);
+ 
+LM75B Temp(PTE25, PTE24);    //SDA, SCL, ADDRESS
 
-//global variable
-float potvalue = 0; 
-
-//Update key for thingspeak
-char* Update_Key = "O1VOWGC3WXI981H6";
+ 
+ 
+ 
  
-//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");
+int main()
+{   
+    pc.baud(115200);
+    //pc.printf("BOARD %s\r\n", board);
     
-    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");
-    
-    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);
+    //Temp.write(0x01, 0x00);
+  
+    while(1)
+    {
+        pc.printf("The temp is: %4.2f degree Celsius\n\r", Temp.read());
+        led1 = !led1;       
+        wait(2);
+    }         
 }
-
-void wifi_send(void){
-    
-    pc.printf("******** Starting TCP connection on IP and port ********\r\n");
-    wifi.startTCPConn(IP,80);    //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,"/update?api_key=%s&field1=%f",Update_Key,potvalue); 
-    pc.printf(http_cmd);
-    
-    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");
-}
-
-int main () {
-    
-    
-    wifi_initialize();
-    
-    while (1) {
-        potvalue = 255*pot.read();
-        pc.printf("Current potvalue is = %.3f \r\n", potvalue);
-        
-        wifi_send();
-        wait(30);
-    }
-}
\ No newline at end of file
+ 
\ No newline at end of file