Revision 1:036d23e0eb5a, committed 2014-03-23

Comitter:

kylepost3

Date:

Sun Mar 23 22:03:11 2014 +0000

Parent:

0:f850dfb07e93

Commit message:

Published Version 1.0 of the Environmental Comfort Measurement project

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/4DGL-uLCD-SE.lib	Sun Mar 23 22:03:11 2014 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/4180_1/code/4DGL-uLCD-SE/#e39a44de229a

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/SCP1000.lib	Sun Mar 23 22:03:11 2014 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/kadams6/code/SCP1000/#47d6f205890b

--- a/main.cpp	Fri Nov 19 16:51:29 2010 +0000
+++ b/main.cpp	Sun Mar 23 22:03:11 2014 +0000
@@ -1,61 +1,163 @@
-/**
- * Copyright (c) 2010 Roy van Dam <roy@negative-black.org>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
 #include "mbed.h"
 #include "SHTx/sht15.hpp"
+#include "SCP1000.h"
+#include "uLCD_4DGL.h"
+ 
+uLCD_4DGL uLCD(p28,p27,p29); // serial tx, serial rx, reset pin;
+SCP1000 scp1000(p5,p6,p7,p8);
+SHTx::SHT15 sensor(p9, p10);
+DigitalOut busy(LED1);
+DigitalIn mode(p14);
 
-Serial pc(USBTX, USBRX);
-DigitalOut busy(LED1);
+
+// Declare pins for color sensor
+AnalogIn red_in(p15);
+AnalogIn green_in(p16);
+AnalogIn blue_in(p17);
+ 
+BusOut red_gain(p26, p25);
+BusOut green_gain(p24, p23);  
+BusOut blue_gain(p22, p21);  
+
+
 
-// I used p9 and p10 here  but you
-// can use any other GPIO as well.
-SHTx::SHT15 sensor(p9, p10);
+float comfort_calc(float val, int min, int max){
+    float delta;
+    
+    if (val < min)
+        delta = val-min;
+    else if (val > max)
+        delta = val - max;
+    else
+        delta = 0;
+    
+    delta = delta * 10 / (max-min);
+        
+    return delta;
+}
 
-int
-main() {
+void delta_print(float delta, char* type){
+    if (delta == 0)
+        uLCD.printf("%s: GOOD   \r\n", type);
+    else if (delta < 0)
+        uLCD.printf("%s: LOW   \r\n", type);
+    else
+        uLCD.printf("%s: HIGH   \r\n", type);
+}
+
+int main() {
     // Speed things up a bit.
     sensor.setOTPReload(false);
     sensor.setResolution(true);
     
+    //Declare internal variables
+    float temp, humid, inHg, tempF;
+    int press;
+    
+    int red = 0;
+    int green = 0;
+    int blue = 0;
+       
+    int prev_mode = 0;
+    
+    //declare comfort values 
+    float temp_delta = 0;
+    float humid_delta = 0;
+    float press_delta = 0;
+    float color_delta = 0;
+    
+    float comfort = 0;
+    
+    // Sets the gain of the color sensor
+    red_gain = 3;
+    green_gain = 3;
+    blue_gain = 3;
+    
+    sensor.setScale(false); // Sets the sensor temp. setting to Celsius
+    
+    uLCD.baudrate(600000);
+    uLCD.cls();
     while(1) {
-        busy = true;
+        //busy = true;
         sensor.update();
-        busy = false;
+        
+        temp = (sensor.getTemperature() + scp1000.readTemperature() )/ 2;   // Averages the 2 available temperature readings
+        humid = sensor.getHumidity();
+        press = scp1000.readPressure();
+        busy = false;        
+        
+        tempF = temp * 9.0 / 5.0 + 32.0; // Converts temp from C to F
         
-        // Temperature in celcius
-        sensor.setScale(false);
-        pc.printf("Temperature [ %3.2f C ]\r\n", sensor.getTemperature());
+        // Scale the RGB sensor values to usuable values
+        red = red_in * 1000;
+        green = green_in * 1000;
+        blue = blue_in * 1700;
+        
+        // Convert pressure to mmhg
+        inHg = press / 3376.85;
+        
+
+        temp_delta = comfort_calc(tempF, 65, 75);
+        humid_delta = comfort_calc(humid, 30, 70);
+        press_delta = comfort_calc(inHg, 28, 31);
+        color_delta = comfort_calc(red+green+blue, 30, 450);
+        
+        
         
-        // Temperature in fahrenheit
-        sensor.setScale(true);
-        pc.printf("            [ %3.2f F ]\r\n", sensor.getTemperature());
+        comfort = abs(temp_delta) + abs(humid_delta) + abs(press_delta)+ abs(color_delta);
+        comfort = 100 - comfort;
+
+        // Beggining of printing modes
+        uLCD.locate(0,0);
         
-        // Relative Humidity
-        pc.printf("Humdity     [ %3.2f %% ]\r\n\n", sensor.getHumidity());
+                
+        if (mode==0){     // Sensor detail mode   
+            if (prev_mode != mode)
+                uLCD.cls();
+                
+            // Prints the temperature in celcius            
+            uLCD.printf("Temp: %3.2f F\r\n", tempF);
+            
+            // Prints the relative Humidity
+            uLCD.printf("Humdity: %3.2f %%\r\n", humid);
+            
+            // Prints barometric pressure
+            uLCD.printf("Press: %3.2f inHg\r\n\n", inHg);
+            if (inHg >=28.9)
+                uLCD.printf("High Pressure");
+            else 
+                uLCD.printf("Low Pressure");
+            
+            //Print color sensor values
+            uLCD.printf("\n\n");
+            uLCD.printf("Red: %i\r\n", red);
+            uLCD.printf("Green: %i\r\n", green);
+            uLCD.printf("Blue: %i\r\n", blue);  
+            
+            uLCD.printf("\nt:%3.2f h:%3.2f \np:%3.2f l:%3.2f \r\n", temp_delta, humid_delta, press_delta, color_delta);
+            
+            prev_mode = 0;
+        }
+        else { // Normal mode
+            if (prev_mode != mode)
+                uLCD.cls();
+
         
-        wait(5);
+            delta_print(temp_delta, "Temp");
+            delta_print(humid_delta, "Humid");
+            delta_print(press_delta, "Press");
+            delta_print(color_delta, "Light");
+            
+            if (comfort >90)
+                uLCD.printf("\n\nComfortable   \r\n");
+            else
+                uLCD.printf("\n\nUncomfortable\r\n");
+            
+            uLCD.printf("Rating %3.0f/100\r\n", comfort);  
+            prev_mode = 1;
+        }
+        wait(.5);
     }
 }
+
+