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Basic fading in and out of leds with light sensor.
main.cpp
- Committer:
- mturner5
- Date:
- 2016-09-19
- Revision:
- 0:cf7af2656659
File content as of revision 0:cf7af2656659:
#include "mbed.h" #include "SLCD.h" #define PROGNAME "lightsense_kl46z_basic v1\n\r" #define DATATIME 400 // milliseconds #define LCDLEN 10 #define LIGHTSENSORPORT PTE22 SLCD slcd; //define LCD display globally define Serial pc(USBTX, USBRX); Timer LEDTimer; void LCDMess(char *lMess){ slcd.Home(); slcd.clear(); slcd.printf(lMess); } int main() { AnalogIn LightSensor(LIGHTSENSORPORT); float lightData; char lcdData[LCDLEN]; PwmOut gled(LED_GREEN); PwmOut rled(LED_RED); int timeToChangeDF = DATATIME; LEDTimer.start(); LEDTimer.reset(); pc.printf(PROGNAME); 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); LCDMess(lcdData); gled = 1.0 - lightData; rled = 1.0 - lightData; timeToChangeDF = DATATIME; LEDTimer.reset(); } }// emd while }