LED7segX4 Class Reference

Dynamic Lighting Lib. More...

#include <LED7segX4.h>

Detailed Description

Dynamic Lighting Lib.

of 7Seg-LED (add DP) x4.

Features:

• Unified Anode/Cathode common 7Segs, and NPN/PNP switchings.
• Using BusOut(s) of Digits(0-3) and Segments(A-G,DP).
• Simple Interface of Class.
• Non-use wait(); Useing Interrupt Timer: Ticker and Timeut.
• Modulates Brightness; You Can Control of Periodic-Time and Duty.
• Display Hex(0-9,A-F) of 4 Digit; Using char[4].

  #include "mbed.h"
   
  #include "LED7segX4.h"
   
  // port make.
  BusOut pDgit(p21, p22, p23, p24);   // D1, D2, D3, D4
  BusOut pSeg(p11, p12, p13, p14, p15, p16, p17, p18); // A, B, C, D, E, F, G, DP
  
  // Make instance of 7Seg-class.
  LED7segX4 led7seg(pDgit, pSeg);
  
  // for Operation check.
  DigitalOut myled(LED1);
  
  int main() {
      
      char val[4];
      char dp;
      int duty;
      
       // In this case: Anode Common, PNP swiching for Dig-common,
      // and sink port(BusOut) for seg.
      led7seg.init(true, true, 1000, 40);
      
      val[0]= 0;
      val[1]= 0;
      val[2]= 0;
      val[3]= 0;
      
      led7seg.set7seg(val);
      led7seg.setDP(0b0001);
      
      while(true) {
          myled = !myled;
          wait_ms(30);
  
          if(++duty > 100)
              duty= 30;
              
          val[3] += 1;
          for(int i= 0; i < 3; i++){
              if(val[3-i] > 15){
                  if(i < 3){
                      val[3-i]= 0;
                      val[2-i] += 1;
                  }
                  dp += 1;
              }
          }
          if(val[0]==15 && val[1]==15 && val[2]==15 && val[3]==15){
              // = FFFF
              val[0]= 0;
              val[1]= 0;
              val[2]= 0;
              val[3]= 0;
          }
          if(dp > 0b1111)
              dp= 0;
          
          led7seg.set7seg(val);
          led7seg.setDP(dp);
          led7seg.setPWM(1000, duty);
          
      }
      
      return 0;
  }
  

Definition at line 88 of file LED7segX4.h.

Constructor & Destructor Documentation

Member Function Documentation