Stanley Cohen / Mbed 2 deprecated lightsense_kl46z_PWM__lux

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Dependencies:   SLCD mbed

Fork of lightsense_kl46z_PWM_simple by Stanley Cohen

main.cpp@8:ea818c9220fc, 2016-01-25 (annotated)

Committer:
scohennm
Date:
Mon Jan 25 16:10:38 2016 +0000
Revision:
8:ea818c9220fc
Parent:
7:8d7089b514ae
Child:
9:96ddab3435d2
Demo of light sensor reading for NMHU Ambient computing Spring 2016 HW 2.1

Who changed what in which revision?

UserRevisionLine numberNew contents of line
scohennm 0:e23fffd4b9a7 1 #include "mbed.h"
scohennm 1:51f8c2b04ce2 2 #include "SLCD.h"
scohennm 1:51f8c2b04ce2 3
scohennm 3:64e28ee5719b 4
scohennm 8:ea818c9220fc 5 #define PROGNAME "lightsense_kl46z_PWM v1\n\r"
scohennm 8:ea818c9220fc 6 #define DATATIME 400 // milliseconds
scohennm 1:51f8c2b04ce2 7 #define LCDLEN 10
scohennm 8:ea818c9220fc 8 #define LIGHTSENSORPORT PTE22
scohennm 6:710e18c552f5 9
scohennm 6:710e18c552f5 10
scohennm 0:e23fffd4b9a7 11
scohennm 4:bd42ab18979b 12 SLCD slcd; //define LCD display globally define
scohennm 1:51f8c2b04ce2 13 Serial pc(USBTX, USBRX);
scohennm 8:ea818c9220fc 14 Timer LEDTimer;
scohennm 1:51f8c2b04ce2 15
scohennm 1:51f8c2b04ce2 16 void LCDMess(char *lMess){
scohennm 1:51f8c2b04ce2 17 slcd.Home();
scohennm 1:51f8c2b04ce2 18 slcd.clear();
scohennm 1:51f8c2b04ce2 19 slcd.printf(lMess);
scohennm 1:51f8c2b04ce2 20 }
scohennm 0:e23fffd4b9a7 21
scohennm 0:e23fffd4b9a7 22 int main() {
scohennm 8:ea818c9220fc 23 PwmOut greenColor(LED_GREEN);
scohennm 8:ea818c9220fc 24 PwmOut redColor(LED_RED);
scohennm 8:ea818c9220fc 25 AnalogIn LightSensor(LIGHTSENSORPORT);
scohennm 6:710e18c552f5 26 float lightData;
scohennm 1:51f8c2b04ce2 27 char lcdData[LCDLEN];
scohennm 4:bd42ab18979b 28
scohennm 8:ea818c9220fc 29 int timeToChangeDF = DATATIME;
scohennm 3:64e28ee5719b 30 // set up timer for next step of Duty Factor timing
scohennm 3:64e28ee5719b 31 LEDTimer.start();
scohennm 3:64e28ee5719b 32 LEDTimer.reset();
scohennm 1:51f8c2b04ce2 33 pc.printf(PROGNAME);
scohennm 1:51f8c2b04ce2 34
scohennm 3:64e28ee5719b 35
scohennm 8:ea818c9220fc 36 while(true) {
scohennm 8:ea818c9220fc 37 if (LEDTimer.read_ms() > timeToChangeDF){ // check for timer time out transtion
scohennm 8:ea818c9220fc 38 lightData = (1.0 - LightSensor.read()); // show as increasiing with increasing intensity
scohennm 8:ea818c9220fc 39 greenColor.write(1.0- lightData);
scohennm 8:ea818c9220fc 40 redColor.write(1.0-lightData);
scohennm 8:ea818c9220fc 41 sprintf(lcdData,"%4.3f",lightData);
scohennm 8:ea818c9220fc 42 LCDMess(lcdData);
scohennm 8:ea818c9220fc 43 pc.printf("%4.3f\r\n",lightData);
scohennm 8:ea818c9220fc 44 timeToChangeDF = DATATIME;
scohennm 8:ea818c9220fc 45 LEDTimer.reset();
scohennm 8:ea818c9220fc 46 }
scohennm 4:bd42ab18979b 47 }// emd while
scohennm 4:bd42ab18979b 48 }