NMHU example for light sensor SSD 341
Fork of lightsense_kl46z_states by
main.cpp
- Committer:
- scohennm
- Date:
- 2014-09-12
- Revision:
- 5:817aa144563d
- Parent:
- 4:bd42ab18979b
- Child:
- 6:710e18c552f5
File content as of revision 5:817aa144563d:
#include "mbed.h" #include "SLCD.h" // An example of C++ abuse 140904 sc //#define PRINTDEBUG #define PROGNAME "blink_kl46z_states v1\n\r" #define LEDON false #define LEDOFF true #define LEDTMESS "TRUE" #define LEDFMESS "FALS" #define BLINKDWELL 400 // milliseconds #define DFDELTA 0.01 #define PWMTIME 1 // ms (kHz #define LCDLEN 10 #define NUMSTATES 2 #define NEWBLINK 1 #define IDLESTATE 0 char logicalString [NUMSTATES][LCDLEN] = {LEDFMESS, LEDTMESS}; SLCD slcd; //define LCD display globally define Serial pc(USBTX, USBRX); void LCDMess(char *lMess){ slcd.Home(); slcd.clear(); slcd.printf(lMess); } int main() { DigitalOut greenColor(LED_GREEN); DigitalOut redColor(LED_RED); char lcdData[LCDLEN]; Timer LEDTimer; // time till next PWM values is to change. int PGMState = IDLESTATE; // work till timer transitions int ledState = LEDON; int timeToChangeDF = BLINKDWELL; // set up timer for next step of Duty Factor timing LEDTimer.start(); LEDTimer.reset(); pc.printf(PROGNAME); while(true) { switch (PGMState){ case IDLESTATE: { if (LEDTimer.read_ms() > timeToChangeDF){ // check for timer time out transtion PGMState = NEWBLINK; } break; } case NEWBLINK: { ledState = !ledState; redColor = ledState; greenColor = !ledState; sprintf(lcdData,logicalString[ledState]); LCDMess(lcdData); LEDTimer.reset(); // reset the timer PGMState = IDLESTATE; // go idle state break; } } // end state machine #ifdef PRINTDEBUG pc.printf("i= %d dutyfactor = %5.4f workingDelta %5.4f \n\r", i, dutyFactor, workingDelta); #endif }// emd while }