'****************************************************************
'*  Name    : twinkle.BAS                                       *
'*  Author  : Teacher                                           *
'*  Notice  : This is a first sample to PIC Microcontrollers    *
'*          : All Rights Reserved                               *
'*  Date    : 1389/01/07                                        *
'*  Version : 1.0                                               *
'*  Notes   : Bodjnourd Student's Research Center               *
'*          :                                                   *
'****************************************************************
 do 
    low portb.0  
    high portb.1  
    sleep 1
    
    high portb.0  
    low portb.1  
    sleep 1      
 loop