Using microcontroller PIC 16F887 to control 8 single leds on and off using timer T1 with period delay is 2s, 1 second on, 1 second off

• Circuit diagram Interface PIC16F887 microcontroller with LED on Proteus software:

 Figure 1. PIC16F887 microcontroller interface with LED

• Main program:

Control 8 single leds on and off using timer T1.c

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#INCLUDE <16F887.H>

#FUSES NOWDT,PUT,HS,NOPROTECT,NOLVP

#USE DELAY(CLOCK=20M)

#BIT TMR1IF = 0x0C.0

UNSIGNED INT8 X, BDT;

VOID MAIN()

{

   SET_TRIS_D(0x00); X=0; BDT=0; OUTPUT_D(X);

   SETUP_TIMER_1(T1_INTERNAL | T1_DIV_BY_8);

   SET_TIMER1(3036);

   WHILE(TRUE)

   {

      IF (TMR1IF==1)

      {

         TMR1IF=0; SET_TIMER1(3036); BDT++;

         IF (BDT ==10)

         {

            OUTPUT_D(X); X=~X; BDT = 0;

         }

      }

   }

}

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Link download: https://drive.google.com/file/d/1PUnAsc0963tt-ZWX7K2UIK_FQ0DcIKay/view