Sheelapriya Thiyagarajan
/
Thingspeak_over_ethernet
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Dependencies: mbed HTTPClient mbed-rtos NTPClient EthernetInterface
Revision 0:0666873f31ca, committed 2017-03-23
- Comitter:
- rbagwe
- Date:
- Thu Mar 23 04:22:13 2017 +0000
- Child:
- 1:2741e436af09
- Commit message:
- Secure Lab Automation
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/DHT.lib Thu Mar 23 04:22:13 2017 +0000 @@ -0,0 +1,1 @@ +http://developer.mbed.org/users/colinmeikle/code/DHT/#fbe982025894
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/EthernetInterface.lib Thu Mar 23 04:22:13 2017 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/EthernetInterface/#d1ccbed7687a
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/HTTPClient.lib Thu Mar 23 04:22:13 2017 +0000 @@ -0,0 +1,1 @@ +http://developer.mbed.org/users/colinmeikle/code/HTTPClient/#a0d9edb403e5
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/NTPClient.lib Thu Mar 23 04:22:13 2017 +0000 @@ -0,0 +1,1 @@ +http://developer.mbed.org/users/donatien/code/NTPClient/#881559865a93
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/SDFileSystem.lib Thu Mar 23 04:22:13 2017 +0000 @@ -0,0 +1,1 @@ +http://developer.mbed.org/teams/mbed/code/SDFileSystem/#800f18e6739e
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Thu Mar 23 04:22:13 2017 +0000
@@ -0,0 +1,258 @@
+#include "mbed.h"
+#include "DHT.h"
+#include "EthernetInterface.h"
+#include "HTTPClient.h"
+#include "SDFileSystem.h"
+#include "NTPClient.h"
+#include <stdio.h>
+
+//Setting the motor Pin
+DigitalOut motorPin(D10);
+
+//DHT pin number & type
+DHT temp_sensor(PTB23, DHT22);
+
+//Ethernet Interface
+EthernetInterface eth;
+
+//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(){
+
+ //ethernet init
+ eth.init(); //Use DHCP
+ ret= eth.connect();
+
+ if (!ret){
+ pc.printf("Connected, IP: %s, MASK: %s, GW: %s\n",
+ eth.getIPAddress(), eth.getNetworkMask(), eth.getGateway());
+ } else {
+ pc.printf("Error eth.connect() - ret = %d\n", 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;
+ }
+ }
+}
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed-rtos.lib Thu Mar 23 04:22:13 2017 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed-rtos/#5448826aa700
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Thu Mar 23 04:22:13 2017 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/e188a91d3eaa \ No newline at end of file