Revision 4:21c1357bb880, committed 2019-04-13

Comitter:

dewantkatare

Date:

Sat Apr 13 19:16:17 2019 +0000

Parent:

3:baabb88f08e1

Child:

5:b8a76bfc45c9

Commit message:

Transmit Data to Thingspeak using Ethernet Port

Changed in this revision

--- a/DHT.lib	Thu Mar 23 16:32:21 2017 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,1 +0,0 @@
-http://developer.mbed.org/users/colinmeikle/code/DHT/#fbe982025894

--- a/SDFileSystem.lib	Thu Mar 23 16:32:21 2017 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,1 +0,0 @@
-https://developer.mbed.org/users/onkar4patil/code/EmmedPrj1/#5600b782bb61

--- a/main.cpp	Thu Mar 23 16:32:21 2017 +0000
+++ b/main.cpp	Sat Apr 13 19:16:17 2019 +0000
@@ -1,16 +1,14 @@
 #include "mbed.h"
-#include "DHT.h"
 #include "EthernetInterface.h"
-#include  "HTTPClient.h"
-#include "SDFileSystem.h"
-#include "NTPClient.h"
+#include "HTTPClient.h"
 #include <stdio.h>
 
-//Setting the motor Pin
-DigitalOut motorPin(D10);
 
-//DHT pin number & type
-DHT temp_sensor(PTB23, DHT22);
+char buffer[256];
+char resp[1024];
+char val[4][16];  
+float f_out = 23.0; 
+int ret = 0;
 
 //Ethernet Interface
 EthernetInterface eth;
@@ -18,196 +16,13 @@
 //HTTP Client for interfacing to web services
 HTTPClient http;
 
-//NTP service for date and Time used to set boards RTC
-NTPClient ntp;
-
 //serial over USB for debug and Info
 Serial pc(USBTX, USBRX);
 
-//Declaring the variable for LED
-//DigitalOut red(LED1);
-
-DigitalOut redLED(LED1);
-DigitalOut greenLED(LED2);
-DigitalOut blueLED(LED3);
-DigitalOut solenoid(D12);
-DigitalIn button1(D2);
-DigitalIn button2(D3);
-DigitalIn button3(D5);
-DigitalIn button4(D6);
-
-InterruptIn switch1(SW2);
-
-SDFileSystem sd(PTE3, PTE1, PTE2, PTE4, "sd"); // MOSI, MISO, SCLK, SSEL
-
-/*----Global Variables------*/
-int clickNum=0;
-int i;
-int passwordAttempt[4]= {0,0,0,0};      //user input passcode array
-int correctPassword[4]= {1,3,2,4};      //the button passcode array
-bool passStatus=false;
-int passwordWaiter;
-bool v=0;
-
-char resp[1024]; //buffer for the response
-float f = 0.0f, f_out = 0.0f;           //variables to store the temperature value
-int error_temp = 0;                     //temperature sensor error flag
-int ret = 0;
-char val[4][16];                        //to store sensor value
-char f1_read[3];
-int temp_limit = 1;                     //boolean trigger based on value read from thingspeak
-
 //http client init
 HTTPMap map;
 HTTPText inText(resp, 1024);
 
-float temperature;
-time_t ctTime;
-NTPResult result;
-
-/*-----Functions------*/
-bool checkPassword(int passAtt[]){
-    for(i=0;i<4;i++){
-        if(passAtt[i]!=correctPassword[i]){
-            return false;
-        }
-    }
-    return true;
-}
-
-void clearCounters(){
-    clickNum=0;
-    passwordAttempt[0]=0;
-    passwordAttempt[1]=0;
-    passwordAttempt[2]=0;
-    passwordAttempt[3]=0;
-    passStatus=false;
-    passwordWaiter=0;
-}
-
-
-void temperature_control(){
-    error_temp = temp_sensor.readData();
-    f = 0;
-    if (0 == error_temp) {
-        for(int itd = 0; itd<3; itd++){
-            f = f + temp_sensor.ReadTemperature(FARENHEIT);
-            wait_ms(10);
-        }
-        f_out = f/3.0f;
-    }
-
-    if(f_out!= 0.0f){
-        map.put("api_key","ORFC8WKYY3OG0K7Y");
-        sprintf(val[0],"%4.1f",f_out);
-        map.put("field1", val[0]);
-        pc.printf("\nTrying to post data...\n");
-        ret = http.post("https://api.thingspeak.com/update", map, &inText);     //writing data to Thingspeak
-        if (!ret){
-            pc.printf("Executed POST successfully - read %d characters\n", strlen(resp));
-            pc.printf("Result: %s\n", resp);
-        }else{
-            pc.printf("Error - ret = %d - HTTP return code = %d\n", ret, http.getHTTPResponseCode());
-        }
-    }
-    wait(2.0f);
-
-    http.get("https://api.thingspeak.com/channels/242557/fields/1/last?api_key=09DPKTKBCFUW9N6T", f1_read, 3);  //Reading data from Thingspeak
-    pc.printf("Read Data is %s\n", f1_read);
-    sscanf(f1_read, "%d", &temp_limit);
-
-    if (!temp_limit){
-        motorPin = 1;
-    }else{
-        motorPin = 0;
-    }
-}
-
-void button_pad(){
-    pc.printf("Enter the password: \n");
-    while(clickNum!=4 && passwordWaiter<=100){
-        if(button1){
-            passwordAttempt[clickNum]=1;
-            clickNum++;
-            pc.printf("Button 1 Pressed: %d\n",clickNum);
-            while(button1){redLED=1;}
-            redLED=0;
-        }else if(button2){
-            passwordAttempt[clickNum]=2;
-            clickNum++;
-            pc.printf("Button 2 Pressed: %d\n",clickNum);
-            while(button2){redLED=1;}
-            redLED=0;
-        }else if(button3){
-            passwordAttempt[clickNum]=3;
-            clickNum++;
-            pc.printf("Button 3 Pressed: %d\n",clickNum);
-            while(button3){redLED=1;}
-            redLED=0;
-        }else if(button4){
-            passwordAttempt[clickNum]=4;
-            clickNum++;
-            pc.printf("Button 4 Pressed: %d\n",clickNum);
-            while(button4){redLED=1;}
-            redLED=0;
-        }
-        passwordWaiter++;
-        wait(.3);
-    }//end while
-    passStatus=checkPassword(passwordAttempt);
-
-    if(passStatus==true){
-        pc.printf("Right!\n\n");
-        solenoid = 1;
-        redLED=1;
-        wait(0.2);
-        blueLED=1;
-        wait(0.2);
-        greenLED = 0;
-        wait(3);
-        greenLED=1;
-        wait(.2);
-        solenoid = 0;
-    }else{
-        printf("Wrong!\n\n");
-        greenLED = 1;
-        for(i=0;i<3;i++){
-            wait(.2);
-            redLED=1;
-            wait(0.2);
-            blueLED=0;
-            wait(.5);
-            blueLED=1;
-        }
-    }
-
-    redLED=0;
-    clearCounters();
-
-}
-
-void SDcard_logging(){
-    time(&ctTime);
-    temperature = f_out;
-    FILE *fp = fopen("/sd/mydir/Record.csv", "a");
-
-    if(fp == NULL) {
-        error("Could not open file for write");
-    }
-    fprintf(fp, "%s,", ctime(&ctTime));
-    fprintf(fp, "%4.1f", temperature);
-    fclose(fp);
-}
-
-
-void switch1ISR(){
-    switch1.fall(NULL);
-    v=1;
-    switch1.fall(&switch1ISR);
-}
-
-
-
 
 
 int main(){
@@ -217,42 +32,25 @@
     ret= eth.connect();
 
     if (!ret){
-            pc.printf("Connected, IP: %s, MASK: %s, GW: %s\n",
+            pc.printf("\r\nConnected, IP: %s, MASK: %s, GW: %s",
             eth.getIPAddress(), eth.getNetworkMask(), eth.getGateway());
     } else {
-        pc.printf("Error eth.connect() - ret = %d\n", ret);
+        pc.printf("\r\nError eth.connect() - ret = %d", ret);
     }
-
-    wait(0.5);
-    clickNum=0;
-    greenLED = 1;
-    blueLED = 1;
-    redLED = 0;
-    wait(.2);
-
-    button_pad();
-
-    mkdir("/sd/mydir", 0777);
-    FILE *fp = fopen("/sd/mydir/Record.csv", "w");
-    fprintf(fp, "Time, Temperature\r\n");
-    fclose(fp);
-
-    result = ntp.setTime("pool.ntp.org");
-    if (result == NTP_OK) {
-        time(&ctTime);
-        pc.printf("Time is set to (UTC):\n%s\n", ctime(&ctTime));
-    }else{
-        pc.printf("Error setting Time\n");
-    }
-
-    switch1.fall(&switch1ISR);
-
+    
     while(1){
-        temperature_control();
-        if(v){
-            button_pad();
-            SDcard_logging();
-            v=0;
+        pc.printf("\r\nWriting to thingspeak");
+        map.put("api_key","EEMB3URN9LDSPRIM");  /* The thingspeak API KEY*/
+        sprintf(val[0],"%4.1f",f_out);
+        map.put("field1", val[0]);
+        map.put("field2", val[0]);
+        pc.printf("\r\nPosting Data...");
+        ret = http.post("https://api.thingspeak.com/update", map, &inText);     //writing data to Thingspeak
+        if (!ret){
+            pc.printf("\r\nPOST successfully - read %d characters", strlen(resp));
+            pc.printf("\r\nResult: %s\n", resp);
+        }else{
+            pc.printf("\r\nError Connecting to ethernet port - ret = %d - HTTP return code = %d", ret, http.getHTTPResponseCode());
         }
     }
 }
\ No newline at end of file