Diff: main.cpp

Revision:

1:050d003386cb

Parent:

0:a9d218e72251

--- a/main.cpp	Wed Sep 14 18:51:16 2016 +0000
+++ b/main.cpp	Sun Sep 18 03:19:00 2016 +0000
@@ -1,11 +1,23 @@
 #include "mbed.h"
 #include "SLCD.h"
+#include "TSISensor.h"
 
 
 #define PROGNAME "lightsense_kl46z_basic modified by CKM v1\n\r"
 #define DATATIME 400 // milliseconds
 #define LCDLEN 10
 #define LIGHTSENSORPORT PTE22
+#define TSILIMIT 0.99
+#define TSIHALFPOINT 0.5 //used to determine halfpoint of slider
+
+// port addresses for buttons
+#define LBUTTON PTC12  
+#define RBUTTON PTC3
+
+//timer for button read
+#define BUTTONTIME 0.2
+//defined variable for number of buttons
+#define NUMBUTS 2
 
 
 
@@ -13,6 +25,16 @@
 Serial pc(USBTX, USBRX);
 Timer LEDTimer;
 
+//set up buttons and timer for reading states
+DigitalIn leftButton(LBUTTON);
+DigitalIn rightButton(RBUTTON);
+Timer ButtonTimer;
+
+//boolean to determine mode of reading.
+// 0(false) = 16 bit mode.
+// 1(true) = floating point mode.
+bool displayMode;
+
 void LCDMess(char *lMess){
         slcd.Home();
         slcd.clear();
@@ -25,8 +47,19 @@
     PwmOut gled(LED_GREEN);
     PwmOut rled(LED_RED);
     
+    //create Analogin object with port PTE22
     AnalogIn LightSensor(LIGHTSENSORPORT);
+    
+    //create TSI (slider) object to read tsidata (put into a float below)
+    TSISensor tsi;
+    
+    //start up button timer
+    ButtonTimer.start();
+    ButtonTimer.reset();
+    
+    float tsidata;
     float lightData; 
+    float ledData;
     char lcdData[LCDLEN];
    
     int timeToChangeDF = DATATIME;
@@ -36,17 +69,52 @@
     
     while(true) {    
         if (LEDTimer.read_ms() > timeToChangeDF){ // check for timer time out transtion
-            lightData = (1.0 - LightSensor.read()); // show as increasiing with increasing intensity  
-            sprintf(lcdData,"%4.3f",lightData);       
             
+            if(displayMode == 1){ //if in floating point mode, display floating point numbers
+                lightData = (1.0 - LightSensor.read()); // show as increasiing with increasing intensity 
+                sprintf(lcdData,"%4.3f",lightData); //print data to lcd screen 
+            }
+            else if (displayMode == 0){ //if in 16 bit mode, display 16 bit numbers
+                lightData = LightSensor.read_u16();
+                
+                //SLIDER STUFF//
+                //read slider data, put into float variable
+                tsidata = tsi.readPercentage();
+                
+                if (tsidata < TSILIMIT){//if tsi data is read before the half point
+                    if (tsidata < TSIHALFPOINT){ //show first 4 digits if slider reads left side
+                        float divData = (int)lightData/10;
+                        sprintf(lcdData, "%4.0f", divData);//dividing by ten to show first 4
+                    }            
+                    else if (tsidata > TSIHALFPOINT){ //if tsidata is read past half point
+                        float modData = (int)lightData%10000;
+                        sprintf(lcdData, "%4.0f", modData);//modulus by 10k to show last 4
+                        
+                    }//end inner if-elseif (tsidata < TSHIHALFPOINT)
+                }//end outer if (tsidata <TSILIMIT)
+            }//end outer if-elseif (displayMode)
+
             //set LEDs to light data value for brightness
             //they get brighter in dark rooms and dimmer in bright rooms
-            gled = lightData;
-            rled = lightData;
+            //these values only use the floating point format since
+            //ADC format can't be translated to the LEDs as easily.
+            ledData = (1.0 - LightSensor.read());
+            gled = ledData;
+            rled = ledData;
             
             LCDMess(lcdData);  
             timeToChangeDF = DATATIME;
             LEDTimer.reset();
-        }        
-    }// emd while
-}
\ No newline at end of file
+        }//end if  (LEDtimer)
+        
+        if (ButtonTimer > BUTTONTIME){
+                if(!leftButton) { //on left button push, set mode to 0 (float)
+                    displayMode = 0;            
+                }
+                if(!rightButton){ //on right button push, set mode to 1 (ADC)
+                    displayMode = 1;
+                }//end inner if statement (!leftButton)
+            ButtonTimer.reset();
+        }//end outer if statement (buttonTimer)
+    }// end while (true)
+}//end main
\ No newline at end of file