typ 1	     typ 2
	Signal 	      circuit diagram   strip grid board version
	pushbutton input	PD7 	      PD0 
	LCD-RS	    	 	PD4	      PD7
	LCD-E 	   	  	PD5	      PD5
	LCD-D4 	     		PD0	      PD4
	LCD-D5 	     		PD1	      PD3
	LCD-D6 	     		PD2	      PD2
	LCD-D7 	     		PD3	      PD1