Diff: main.cpp

Revision:

0:799b20c9963a

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Wed May 01 19:41:33 2013 +0000
@@ -0,0 +1,295 @@
+#include "mbed.h"
+#include "EthernetNetIf.h"
+#include "NTPClient.h"
+#include "SMTPClient.h"
+#include "SHTx/sht15.hpp"
+#include "TextLCD.h"
+#include <string>
+
+#define HOSTNAME "mbedSE"
+
+// server is domain name eg. mail.authsmtp.com
+// port is smtp port eg. 25 or 23
+// domain must be acceptable to server (but often is not strictly enforced since does not affect FROM address)
+#define SERVER "*"
+#define PORT 26
+#define USER "*"
+#define PASSWORD "*"
+#define DOMAIN "*"
+#define FROM_ADDRESS "*"
+#define TO_ADDRESS "*"
+ 
+TextLCD lcd(p14, p16, p17, p18, p19, p20);
+SHTx::SHT15 sensor(p28, p27);
+EthernetNetIf eth(HOSTNAME);
+NTPClient ntp;
+Host host(IpAddr(), PORT, SERVER);
+SMTPClient smtp(host, DOMAIN, USER, PASSWORD, SMTP_AUTH_PLAIN);
+DigitalOut PTControl(p25);
+DigitalOut Sprayer(p24);
+
+DigitalIn enter(p22);
+DigitalIn cancel(p21);
+DigitalIn send(p23);
+AnalogIn timeSelector(p15);
+DigitalOut led1(LED1);
+DigitalOut led2(LED2);
+
+void sendEmail(SMTPClient &smtp, string subject, string message);
+void selectorMenu();
+//extern "C" void mbed_mac_address(char *mac) { mac[0]=0x00; mac[1]=0x25; mac[2]=0x00; mac[3]=0x4e; mac[4]=0x6b; mac[5]=0x94; }
+
+int selectedTime = 0;
+int selectedTemp = 0;
+int onTime = 6, offTime = 6, minTemp = 70, maxTemp = 95, minH = 60, maxH = 80;
+ 
+int main(){
+    float humidity = 0.0, temperature = 0.0;
+    int emailhour = 12;
+    time_t lastSprayTime;
+    
+    enter.mode(PullDown);
+    cancel.mode(PullDown);
+    send.mode(PullDown);
+
+    // Set up sensor, clear lcd
+    sensor.setOTPReload(false);
+    sensor.setResolution(true);
+    lcd.cls();
+    
+    // Set up ethernet
+    EthernetErr ethErr;
+    int count = 0;
+    do {
+        lcd.cls();
+        printf("Setting up %d...\r\n", ++count);
+        lcd.printf("Setting up connection...");
+        ethErr = eth.setup(600000);
+        if (ethErr) printf("Timeout\r\n", ethErr);
+    } while (ethErr != ETH_OK);
+    
+    printf("\rConnected OK\r\n");
+    lcd.cls();
+    lcd.printf("Connected OK\n");
+    const char* hwAddr = eth.getHwAddr();
+    printf("HW address : %02x:%02x:%02x:%02x:%02x:%02x\r\n",
+           hwAddr[0], hwAddr[1], hwAddr[2],
+           hwAddr[3], hwAddr[4], hwAddr[5]);
+
+    IpAddr ethIp = eth.getIp();
+    printf("IP address : %d.%d.%d.%d\r\n", ethIp[0], ethIp[1], ethIp[2], ethIp[3]);
+    lcd.cls();
+    lcd.printf("IP address : %d.%d.%d.%d\n", ethIp[0], ethIp[1], ethIp[2], ethIp[3]);
+    
+    // Get time from NTP server
+    Host server(IpAddr(), 123, "0.uk.pool.ntp.org");
+    ntp.setTime(server);
+    time_t ctTime = time(NULL)-4*60*60;
+    tm *thetime;
+    thetime = localtime(&ctTime);
+    lastSprayTime = ctTime - 10*60;
+    
+    int hour = 0;
+    int tw_hour = 0;
+    int minute = 0;
+    int seconds = 0;
+    string ampm = "AM";
+    count = 0;
+    while(1) {
+        sensor.update();
+        selectorMenu();
+        led1 = enter; led2 = cancel;
+        
+        // Temperature in fahrenheit
+        sensor.setScale(true);
+        
+        // Get readings from sensor
+        humidity = sensor.getHumidity();
+        temperature = sensor.getTemperature();
+        ctTime = time(NULL)-4*60*60;
+        thetime = localtime(&ctTime);
+        hour = thetime->tm_hour;
+        minute = thetime->tm_min;
+        seconds = thetime->tm_sec;
+        if(thetime->tm_hour >= 12)
+        {
+            tw_hour = hour-12;
+            if(tw_hour == 0) {tw_hour = 12;}
+            ampm = "PM";
+        }
+        else{ampm = "AM";}
+        
+        // Update LCD
+        lcd.cls();
+        
+        lcd.printf("%02d:%02d %s\nT:%3.1f%cF H:%3.1f%%\n", tw_hour, minute, ampm, temperature,223, humidity);
+        if(seconds%10==0)
+        {
+            printf("Current time is (UTC): %s\r\n", ctime(&ctTime));
+        }
+        
+        // Light switching
+        if(seconds==0)//hour == onTime && minute == 0 && seconds == 0)
+        {PTControl = 0;}
+        else if(seconds%30==0)//hour == offTime && minute == 0 && seconds == 0)
+        {PTControl = 1;}
+        
+        // Humidity switcher
+        if(humidity<minH && ctTime-lastSprayTime > 1*60)
+        { 
+            lcd.cls();
+            lcd.printf("Spraying for 5 seconds...");
+            printf("Spraying because humidity is %f and minimum is %d.\r\n", humidity, minH);
+            printf("Last Spray:%d", ctTime-lastSprayTime);
+            Sprayer = 1; 
+            wait(5); 
+            Sprayer = 0;
+            lastSprayTime = ctTime;
+        }
+        else{Sprayer = 0;}
+        
+        // Send out E-mail at desired time
+        if(send)//hour == emailhour && minute == 0 && seconds == 0)
+        {
+            count = 1;
+            char subject[50];
+            char message[50];
+            
+            sprintf(subject, "Subject: Humidity and Temperature Update at %d:%02d %s\n", tw_hour, minute, ampm);
+            sprintf(message, "Humidity = %2.2f \nTemperature = %3.2f", humidity, temperature);
+            sendEmail(smtp, subject, message);
+        }
+        //wait(0.5); 
+    }
+}
+
+void sendEmail(SMTPClient &smtp, string subject, string message)
+{
+    printf("Sending email.\n");
+    //Host host(IpAddr(), PORT, SERVER);
+    //SMTPClient smtp(host, DOMAIN, USER, PASSWORD, SMTP_AUTH_PLAIN);
+    
+    EmailMessage msg;                                                                                        
+    msg.setFrom(FROM_ADDRESS);
+    msg.addTo(TO_ADDRESS);
+    msg.printf("%s\n", subject);
+    msg.printf("%s\n", message);
+
+    printf("Send result %d\n", smtp.send(&msg));
+    printf("Last response | %s", smtp.getLastResponse().c_str());
+    msg.clearContent();
+    //smtp.close();
+    printf("Done.\n");
+}
+
+void selectorMenu()
+{
+    if(cancel)
+        {
+            wait(0.75);
+            // Enter setup routine
+            // Light on Time
+            while(!enter)
+            {
+                selectedTime = timeSelector*24;
+                lcd.cls();
+                lcd.printf("Light on time?  %d", selectedTime); 
+                wait(0.1);
+                
+                if(cancel){
+                    lcd.cls();
+                lcd.printf("Cancelled.         ");
+                    wait(0.25);
+                    return;
+                }
+            }
+            onTime = selectedTime;
+            wait(0.75);
+            // Light off Time
+            while(!enter)
+            {
+                selectedTime = timeSelector*24;
+                lcd.cls();
+                lcd.printf("Light off time? %d", selectedTime); 
+                wait(0.1);
+                
+                if(cancel){
+                    lcd.cls();
+                lcd.printf("Cancelled.         \r");
+                    wait(0.25);
+                    return;
+                }
+            }
+            offTime = selectedTime;
+            wait(0.75);
+            /* Min Temp
+            while(!enter)
+            {
+                selectedTemp = timeSelector*50+70;
+                lcd.cls();
+                lcd.printf("Minimum temperature? %d", selectedTemp); 
+                wait(0.1);
+                
+                if(cancel){
+                    printf("Cancelled.         ");
+                    wait(0.25);
+                    return;
+                }
+            }
+            minTemp = selectedTemp;
+            wait(0.75);
+            // Max Temp
+            while(!enter)
+            {
+                selectedTemp = timeSelector*50+70;
+                lcd.cls();
+                lcd.printf("Maximum Temperature? %d", selectedTemp); 
+                wait(0.1);
+                
+                if(cancel){
+                    printf("Cancelled.         ");
+                    wait(0.25);
+                    return;
+                }
+            }
+            maxTemp = selectedTemp;
+            wait(0.75);
+            */
+            // Min Humidity
+            while(!enter)
+            {
+                selectedTemp = timeSelector*50+30;
+                lcd.cls();
+                lcd.printf("Minimum Humidity? %d", selectedTemp); 
+                wait(0.1);
+                
+                if(cancel){
+                    printf("Cancelled.         ");
+                    wait(0.25);
+                    return;
+                }
+            }
+            minH = selectedTemp;
+            wait(0.75);
+            // Max Temp
+            while(!enter)
+            {
+                selectedTemp = timeSelector*50+30;
+                lcd.cls();
+                lcd.printf("Maximum Humidity? %d", selectedTemp); 
+                wait(0.1);
+                
+                if(cancel){
+                    printf("Cancelled.         ");
+                    wait(0.25);
+                    return;
+                }
+            }
+            maxH = selectedTemp;
+            wait(0.75);
+            
+            lcd.cls();
+            lcd.printf("On:%d Off:%d\nMinH: %d MaxH:%d", onTime, offTime, minH, maxH);
+            wait(2);
+        }
+}