Revision 5:e1431272be79, committed 2018-02-13

Comitter:

jmr274

Date:

Tue Feb 13 05:36:04 2018 +0000

Parent:

4:0803151bc5e4

Child:

6:84e3ba00b995

Commit message:

Added Heat Index

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/HTU21D.lib	Tue Feb 13 05:36:04 2018 +0000
@@ -0,0 +1,1 @@
+https://os.mbed.com/users/hwing91/code/HTU21D/#db86ad1b4459

--- a/main.cpp	Mon Feb 12 19:31:23 2018 +0000
+++ b/main.cpp	Tue Feb 13 05:36:04 2018 +0000
@@ -13,7 +13,7 @@
 #include "FXOS8700.h"           // 3D Accelorometer & Mag
 #include "FXAS21002.h"          // 3-Axis Gyroscope
 #include "Hexi_OLED_SSD1351.h"  // OLED fuctions
-                                // Non-Freescale HTU21D - combo temperature and Humidity
+#include "HTU21D.h"             // Non-Freescale HTU21D - combo temperature and Humidity
 #include "W25Q64FV.h"           // W25Q64FVSSIG Serial Flash 
                                 // Non-Freescale MPL3115A2 - pressure sensor 
 #include "Hexi_Battery/hexi_battery.h"  // Battery status
@@ -64,7 +64,7 @@
 void Enable_Heart_Rate();
 void Disable_Heart_Rate();
 void Led_Zone_Indicator();
-
+void Heat_Index_Calculation();
 void fall_config(uint8_t); 
 void fall_detect(void);
 void fall_det_end(void);
@@ -74,20 +74,21 @@
 // *****************  Global variables  ***********************
 char text_1[20];            // Text buffer - Do we need more?
 char display_buff[30];      //Buffer for conversion to char to display
+char text[20];              // Text Buffer for dynamic value displayed
 bool Led_Zones = 1;
 bool HR_Enable = 0;
 bool OLED_ON = 1;           // Turn OLED power on/off
 bool Fall_Alert = 1;        // Initialize as no active alert
-bool Panic_Alert = 0;        // Initialize as no active alert
-bool Fall_Alert_Mode = 1;   //  Initialize with fall alert mode on
-bool Heart_Rate_Mode = 0;   //  Initialize with Heart rate off
+bool Panic_Alert = 0;       // Initialize as no active alert
+bool Fall_Alert_Mode = 1;   // Initialize with fall alert mode on
+bool Heart_Rate_Mode = 0;   // Initialize with Heart rate off
 float Accel_Mag=0.0;        // Vector magnitude calculated from sensor data
 float Accel_Data[3];        // Accel Data from sensor
-float Gyro_Mag=0.0;        // Vector magnitude calculated from sensor data
-float Gyro_Data[3];        // Gyro data from sensor
-float Fall_Thresh=0.5;        // Initialize Fall detect Threshold
-float Impact_Thresh=3.0;        // Initialize Impact detect Threshold
-float Movement_Thresh=50.0;        // Initialize Movement detect Threshold
+float Gyro_Mag=0.0;         // Vector magnitude calculated from sensor data
+float Gyro_Data[3];         // Gyro data from sensor
+float Fall_Thresh=0.5;      // Initialize Fall detect Threshold
+float Impact_Thresh=3.0;    // Initialize Impact detect Threshold
+float Movement_Thresh=50.0; // Initialize Movement detect Threshold
 uint8_t Current_Zone = 1;
 uint8_t Prev_Zone = 1;
 uint8_t Heart_Rate = 100;
@@ -103,12 +104,17 @@
 uint8_t HR_Zone2[2] = {HR_Zone1[1] + 1, Max_Bpm * .70};       //Heart Rate Zone 2
 uint8_t HR_Zone3[2] = {HR_Zone2[1] + 1, Max_Bpm * .80};       //Heart Rate Zone 3
 uint8_t HR_Zone4[2] = {HR_Zone3[1] + 1, Max_Bpm};       //Heart Rate Zone 4
+int sample_ftemp;
+int sample_humid;
+int heat_index;
+
 // ***************** Define pins *****************************
 FXAS21002 gyro(PTC11,PTC10); // Gyroscope
 SSD1351 oled(PTB22,PTB21,PTC13,PTB20,PTE6, PTD15); // SSD1351 OLED Driver (MOSI,SCLK,POWER,CS,RST,DC)
 FXOS8700 accel(PTC11, PTC10); // Accelorometer
 FXOS8700 mag(PTC11, PTC10);   // Mag (same chip as Accel)
 //MAX30101 heart(PTB1, PTB0); //Heart Rate Chip
+HTU21D temphumid(PTB1,PTB0); // HTU21D Sensor
 
 // initialize I2C bus for FXOS8700, FXAS-Gyro, MPL-Pressure
     I2C i2c_bus1(PTC11, PTC10);  // (SDA, SCL)
@@ -122,11 +128,12 @@
 DigitalOut Led_clk3(PTA14);
 
 DigitalOut OLED_PWR(PTC13);     // this pin turns on/off 15V to OLED display
-DigitalOut Non_Free_PWR(PTB13);  // this pin turns on/off non-freescale sensors (Pres/Temp/Hum/Light)
+DigitalOut Non_Free_PWR(PTB13); // this pin turns on/off non-freescale sensors (Pres/Temp/Hum/Light)
+DigitalOut powerEN (PTB12);     // Power Enable HTU21D Sensor
 DigitalOut HR_PWR(PTA29);       // this pin turns on/off Heart rate sensor
-//DigitalIn   Sw1(PTA12);  //Switch 'T1' on docking station AND Led_clk1!!
-//DigitalIn   Sw2(PTA13);  //Switch 'T2' on docking station AND Led_clk2!!
-DigitalIn   Sw3(PTA15);  //Switch 'T3' on docking station 
+//DigitalIn   Sw1(PTA12);       //Switch 'T1' on docking station AND Led_clk1!!
+//DigitalIn   Sw2(PTA13);       //Switch 'T2' on docking station AND Led_clk2!!
+DigitalIn   Sw3(PTA15);         //Switch 'T3' on docking station 
 
 
 /* Instantiate the Hexi KW40Z Driver (UART TX, UART RX) */
@@ -706,6 +713,8 @@
 int main()
 {
     OLED_PWR = 1;  // Turn on OLED power supply
+    
+    
     oled.FillScreen(COLOR_BLACK); // Clear screen
 // *****************  Local variables  ***********************
 //   float accel_data[3]; float accel_rms=0.0;
@@ -776,6 +785,7 @@
         }// end if
     i++;
     }// end while(i<20)
+        
 //    wait(10);          // wait 10 sec each loop, was orig half sec
     RED_Led = LED_ON;    // Used only for diagnostic of wait command
     Led_clk3 = 1;         // Used only for diagnostic of wait command
@@ -819,9 +829,15 @@
             oled.Label((uint8_t *)"Batt",35,0); // Display "Batt" at x,y
             oled.Label((uint8_t *)"Date",35,20); // Display "Date" at x,y
             oled.Label((uint8_t *)"Time",35,40); // Display "Time" at x,y
-            oled.Label((uint8_t *)"H.I.",10,80); // Display "H.I." at x,y
+//            oled.Label((uint8_t *)"H.I.",10,80); // Display "H.I." at x,y
             oled.Label((uint8_t *)"BT",40,80);  //Display "BT" at x,y
             oled.Label((uint8_t *)"Menu",60,80);  //Display "Menu" at x,y
+            
+            Heat_Index_Calculation();
+            sprintf(text,"%i",heat_index);
+            oled.TextBox((uint8_t *)text,5,80,15,15); 
+            strcpy((char *) text,"dF");oled.Label((uint8_t *)text,18,80);
+            
             if(Heart_Rate_Mode == 1) {
                 oled.Label((uint8_t *)"BPM",35,60); // Display "H.I." at x,y
             }
@@ -1034,6 +1050,58 @@
             oled.Label((uint8_t *)"*",85,60); // "*" at x,y
             oled.Label((uint8_t *)" Back ",9,80); // Display "Back" at x,y
             //             oled.Label((uint8_t *)" Enter ",59,80);  //Display at x,y
+
+
+            
+            oled_text_properties_t textProperties = {0};
+            oled.GetTextProperties(&textProperties);
+      
+            strcpy((char *) text,"Temp.");
+            oled.Label((uint8_t *)text,5,40); 
+            strcpy((char *) text,"Humidity");
+            oled.Label((uint8_t *)text,5,57);   
+            strcpy((char *) text,"H.I.");
+            oled.Label((uint8_t *)text,5,23);        
+      
+        /* Set text properties to white and right aligned for the dynamic text */
+            textProperties.fontColor = COLOR_GREEN;
+            textProperties.alignParam = OLED_TEXT_ALIGN_RIGHT;
+            oled.SetTextProperties(&textProperties);  
+            
+        /* Format the value */
+            sprintf(text,"%i",sample_ftemp);
+        
+        /* Display time reading in 35px by 15px textbox at(x=55, y=40) */
+            oled.TextBox((uint8_t *)text,55,40,15,15); //Increase textbox for more digits
+        
+        /* Display Units */
+            strcpy((char *) text,"dF");
+            oled.Label((uint8_t *)text,71,40);       
+      
+        /* Format the value */
+            sprintf(text,"%i",sample_humid);
+        
+        /* Display time reading in 35px by 15px textbox at(x=55, y=40) */
+            oled.TextBox((uint8_t *)text,55,57,15,15); //Increase textbox for more digits
+        
+        /* Display Units */
+            strcpy((char *) text,"%");
+            oled.Label((uint8_t *)text,71,57); 
+        
+         /* Set text properties to white and right aligned for the dynamic text */
+            textProperties.fontColor = COLOR_BLUE;
+            textProperties.alignParam = OLED_TEXT_ALIGN_RIGHT;
+            oled.SetTextProperties(&textProperties);        
+      
+        /* Format the value */
+            sprintf(text,"%i",heat_index);
+        
+        /* Display time reading in 35px by 15px textbox at(x=55, y=40) */
+            oled.TextBox((uint8_t *)text,55,23,15,15); //Increase textbox for more digits
+        
+        /* Display Units */
+            strcpy((char *) text,"dF");oled.Label((uint8_t *)text,71,23);
+            
             break;
         }
         case 26: {//Heart Rate Config Option
@@ -1665,6 +1733,29 @@
     }
   }  
 }//end of Led_Zone_Indicator 
+
+/*****************************************************************************
+Name: Heat_Index_Calculation()
+Purpose: Calculates the heat index using the temperature and humidity sensors
+Inputs: None
+Returns: None
+******************************************************************************/
+void Heat_Index_Calculation(){
+    sample_ftemp = temphumid.sample_ftemp();
+ 
+    sample_humid = temphumid.sample_humid();
+            
+    heat_index = -42.379 +
+           2.04901523 * sample_ftemp +
+           10.14333127 * sample_humid -
+           0.22475541 * sample_ftemp * sample_humid -
+           0.00683783 * sample_ftemp * sample_ftemp -
+           0.05481717 * sample_humid * sample_humid +
+           0.00122874 * sample_ftemp * sample_ftemp * sample_humid +
+           0.00085282 * sample_ftemp * sample_humid * sample_humid -
+           0.00000199 * sample_ftemp * sample_ftemp * sample_humid * sample_humid;
+}
+
 /*****************************************************************************
 Name: fall_detect()
 Purpose: Interupt rutine called when accelerometer IC has detected a free-fall >= 0.5g