' PicBasic Pro program to display result of 
' 8-bit A/D conversion on LCD
'
' Connect analog input to channel-0 (RA0)

' Define LCD registers and bits
Define  LCD_DREG        PORTD
Define  LCD_DBIT        4
Define  LCD_RSREG       PORTE
Define  LCD_RSBIT       0
Define  LCD_EREG        PORTE
Define  LCD_EBIT        1

' Define ADCIN parameters
Define  ADC_BITS        8     	' Set number of bits in result
Define  ADC_CLOCK       3     	' Set clock source (3=rc)
Define  ADC_SAMPLEUS    50    	' Set sampling time in uS

adval  var byte					' Create adval to store result


		TRISA = %11111111		' Set PORTA to all input
        ADCON1 = %00000010		' Set PORTA analog
        Low PORTE.2     		' LCD R/W line low (W)

        Pause 500       		' Wait .5 second

loop: 	ADCIN 0, adval					' Read channel 0 to adval

	    Lcdout $fe, 1   				' Clear LCD
        Lcdout "Value: ", DEC adval		' Display the decimal value  

        Pause 100       				' Wait .1 second

        Goto loop       				' Do it forever
        End
