main.cpp

00001 #include "mbed.h"
00002 #include "SLCD.h"
00003 
00004 
00005 #define PROGNAME "lightsense_kl46z_basic v1\n\r"
00006 #define DATATIME 400 // milliseconds
00007 #define LCDLEN 10
00008 #define LIGHTSENSORPORT PTE22
00009 #define LEDON false
00010 #define LEDOFF true
00011 #define LRED "RED"
00012 #define LGREEN "GREN"
00013 
00014 SLCD slcd; //define LCD display globally define
00015 Serial pc(USBTX, USBRX);
00016 Timer LEDTimer;
00017 Timer LIGHTTimer;
00018 
00019 bool ledState = LEDON;
00020 
00021 void LCDMess(char *lMess){
00022         slcd.Home();
00023         slcd.clear();
00024         slcd.printf(lMess);
00025 } 
00026 
00027 int main() {
00028     AnalogIn LightSensor(LIGHTSENSORPORT);
00029     float lightData; 
00030     char lcdData[LCDLEN];
00031    
00032     int timeToChangeDF = DATATIME;
00033     LEDTimer.start();
00034     LEDTimer.reset();
00035     pc.printf(PROGNAME);
00036     
00037     PwmOut gled(LED_GREEN);
00038     PwmOut rled(LED_RED);
00039     
00040     while(true) {    
00041         if (LEDTimer.read_ms() > timeToChangeDF){ // check for timer time out transtion
00042             lightData = (1.0 - LightSensor.read()); // show as increasiing with increasing intensity  
00043             sprintf(lcdData,"%4.3f",lightData);       
00044             LCDMess(lcdData);  
00045             timeToChangeDF = DATATIME;
00046             gled = 0.0;
00047             rled = 0.0;
00048             LEDTimer.reset();
00049         } 
00050     }// emd while
00051 }