Revision 4:bfc60dcb627a, committed 2018-03-20

Comitter:

habusaq

Date:

Tue Mar 20 19:58:45 2018 +0000

Parent:

3:399fd9e24cea

Commit message:

A system to control fan speed according to temperature values.

Changed in this revision

--- a/ESP8266.lib	Wed Dec 13 15:44:24 2017 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,1 +0,0 @@
-http://mbed.org/users/quevedo/code/ESP8266/#77388e8f0697

--- a/jsonlite.lib	Wed Dec 13 15:44:24 2017 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,1 +0,0 @@
-https://os.mbed.com/users/shabach/code/jsonlite/#a60dce88c862

--- a/main.cpp	Wed Dec 13 15:44:24 2017 +0000
+++ b/main.cpp	Tue Mar 20 19:58:45 2018 +0000
@@ -1,167 +1,83 @@
 #include "mbed.h"
-#include "ESP8266.h"
-#include <string>
-
-#define APIKEY V5N1NKKKH5T51D48    //Put "Write key" of your channel in thingspeak.com 
-#define IP "184.106.153.149"       // IP Address of "api.thingspeak.com\"
-#define WIFI_SSID "Jeremy"
-#define WIFI_PASS "mbedproject"
-
-Serial pc(USBTX, USBRX); // tx, rx
-ESP8266 WiFi (D1, D0, 115200);
 
 AnalogIn temp(A0);
-DigitalOut test(D3, 0);
-InterruptIn motion(D2);
-
-void WiFi_Init (void);
-void WiFi_Send (void);
-
-char snd[255];
-char rcv[1000];
+PwmOut control(D3);
+Serial pc(USBTX, USBRX); 
+Serial bt(PTC17, PTC16);
 
-int motion_cnt = 0;
-int motion_detected = 0;
-double tempC;
-double tempF;
-    
-void irq_handler(void)
-{
-    motion_detected = 1;
-}
+
 
 int main(void)
 {
-    pc.baud(115200);
-    pc.printf("Program Started \r\n");
-    
-    WiFi_Init();
+    float tempC;
+    float tempF;
+    int TempC;
+    char c;
+
     
-    pc.printf("WiFi Connected! \r\n");
     
-    //time_t is used to store the calender time format
-    time_t rawtime;
-    struct tm *timeinfo;
-    
-    motion.rise(&irq_handler);
+    pc.printf("\n\nProgram Started \r\n");
+      
+    //6.785503686
     
     while(1)
     {
-        tempC = (temp*300);
+        control.period(0.000000000000001);   //10 kHz
+        tempC = (temp*6.786*10);
         tempF = (9.0*tempC)/5.0 + 32.0;
-        
+        TempC = tempC;
+         if(bt.readable() > 0)
+            c = bt.getc();
+            
+        if(pc.readable())
+            bt.putc(pc.getc());
+
+
         pc.printf("Temperature is %.2f C %.2f F\n\r", tempC, tempF);
         
         wait(1);
         
-        if(motion_detected)
+       
+        if(tempC > 28 || c == 's')
+        {
+            control.write(0.79);
+            DigitalOut test2(D2, 1);
+            DigitalOut test1(D4, 0);
+           
+            //LED red 
+               
+        }
+            
+         else if(tempC > 34 || c == 'f')
         {
-            //get the current time
-            time(&rawtime);
-            timeinfo = localtime(&rawtime);
-            
-            motion_cnt++;
-            motion_detected = 0;
-            pc.printf("Motion %d Detected at %d:%d:%d \n\r", motion_cnt, timeinfo->tm_hour, timeinfo->tm_min, timeinfo->tm_sec);
+            control.write(1);
+            DigitalOut test1(D4, 1);
+            DigitalOut test2(D2, 0);
+           
+            //LED green       
+        }  
+        
+         else //(tempC < 28 || c == 'p')
+        {
+            DigitalOut test1(D4, 0);
+            DigitalOut test2(D2, 0);
+            control.write(0);
         }
         
-        if(tempF > 90)
-        {
-            DigitalOut test(D3,1);
-            
-        }
-        else
-        {
-         DigitalOut test(D3,0);
-        }
-        WiFi_Send();
+        
     }
 }
 
-void WiFi_Init (void)
-{
-    pc.printf("Initializing ESP \r\n");
 
-    pc.printf("Reset WiFi \r\n");
-    WiFi.Reset();                   //RESET ESP
-    WiFi.RcvReply(rcv, 400);        //receive a response from ESP
-    pc.printf("%s \r\n", rcv);
-    wait(2);
 
-    strcpy(snd, "AT");
-    WiFi.SendCMD(snd);
-    pc.printf("%s \r\n", snd);
-    WiFi.RcvReply(rcv, 400);
-    pc.printf("%s \r\n", rcv);
-    wait(2);
 
-    strcpy(snd, "AT+CWMODE=1");
-    WiFi.SendCMD(snd);
-    pc.printf("%s \r\n", snd);
-    WiFi.RcvReply(rcv, 400);
-    pc.printf("%s \r\n", rcv);
-    wait(2);
+
 
-    strcpy(snd, "AT+CWJAP=\"");
-    strcat(snd, WIFI_SSID);
-    strcat(snd, "\",\"");
-    strcat(snd, WIFI_PASS);
-    strcat(snd, "\"");
 
-    WiFi.SendCMD(snd);
-    pc.printf("%s \r\n", snd);
-    wait(2);
-    WiFi.RcvReply(rcv, 400);
-    pc.printf("%s \r\n", rcv);
-    wait(2);
 
-    strcpy(snd, "AT+CIPMUX=1");
-    WiFi.SendCMD(snd);
-    pc.printf("%s \r\n", snd);
-    WiFi.RcvReply(rcv, 400);
-    pc.printf("%s \r\n", rcv);
-    wait(2);
-}
-
-void WiFi_Send (void)
-{
-    //ESP updates the Status of Thingspeak channel//
 
-    strcpy(snd,"AT+CIPSTART=");
-    strcat(snd,"\"TCP\",\"");
-    strcat(snd,IP);
-    strcat(snd,"\",80");
 
-    WiFi.SendCMD(snd);
-    pc.printf("Send\r\n%s",snd);
-    WiFi.RcvReply(rcv, 1000);
-    pc.printf("Receive\r\n%s",rcv);
-    wait(1);
-
-    sprintf(snd,"GET https://api.thingspeak.com/update?api_key=V5N1NKKKH5T51D48&field1=%f&field2=%d\r\n", tempF, motion_cnt);
 
-    int i=0;
-    for(i=0; snd[i]!='\0'; i++);
-    i++;
-    char cmd[255];
+
 
-    sprintf(cmd,"AT+CIPSEND=%d",i);           //Send Number of open connection and Characters to send
-    WiFi.SendCMD(cmd);
-    pc.printf("Send\r\n%s",cmd);
-    while(i<=20 || rcv == ">") {
-        WiFi.RcvReply(rcv, 1000);
-        wait(100);
-        i++;
-    }
-    pc.printf("Receive\r\n%s",rcv);
-
-    WiFi.SendCMD(snd);       //Post value to thingspeak channel
-    pc.printf("Send\r\n%s",snd);
-
-    while(i<=20 || rcv == "OK") {
-        WiFi.RcvReply(rcv, 1000);
-        wait(100);
-        i++;
-    }
-    pc.printf("Receive\r\n%s",rcv);
-}
\ No newline at end of file
+ 
\ No newline at end of file