'--------------------------------------------------------------------------------
'--- Title: Aquarium Logger
'--- Date:  05-03-02
'---
'--- By:   Mike Woods
'--- Desc: Reads the temperature and pH from the aquarium and send the values 
'---       out the serial port to a computer.  The PC then updates a Database
'---       where the results can be viewed from a webpage with graphs from 
'---       any date/time.  Eventually I would like to add more features like
'---       Lighting, feeding, etc....
'--------------------------------------------------------------------------------

TITLE AQ.BAS
			
			DEVICE SX28L, TURBO, STACKX_OPTIONX
			
			DIM ADC_Data, Temp_Data, X, I
			DIM ADCCNT1_
			DIMBIT ADCD1_=RC.5,ADCCK1_=RC.6,ADCCS1_=RC.7
			
			DIMBIT D1W_=RC.4, Presence=X.0
			DimBIT TX=RC.2
			
			LEVEL RC=$E0	' port is Cmos 11110000

			GOSUB DINIT
			



		DINIT:
			ADCCS1_=TRUE
			ADCCK1_=FALSE
			OUTDIR ADCCS1_
			OUTDIR ADCCK1_
			CONFIG_D1W_
		ENDINIT
		
		SUBROUTINE CONFIG_D1W_()
	
			Presence = D1RS_()	'--- Reset
			D1W_ = $CC		'--- Skip Row
			D1W_ = $4E		'--- Write Scratch
			
			FOR I=1 TO 3		'--- Send 3 byte Configuration
				D1W_ = $7F	'--- 12 Bit, Hi Alarm
			NEXT I

			Presence = D1RS_()	'--- Reset
			D1W_  = $CC		'--- Skip Row
			D1W_ = $48		'--- Copy Scratch to EEPROM
			D1W_ = TRUE		'--- POwer ON
			PAUSE 10000,10		
			D1W_ = FALSE		'--- POwer Off
		ENDSUB
			
		SUBROUTINE ADC1_()
			

			ADCCS1_=FALSE
			
			DO ADCCNT1_ = 8
				SHIFTINL ADC_Data,ADCD1_
				ADCCK1_=TRUE
				DELAY 1
				DELAY 0
				ADCCK1_=FALSE
				NOP 6
			LOOP ADCCNT1_

			NOP 2
			SHIFTINL ADC_Data,ADCD1_

			DO ADCCNT1_=2
				ADCCK1_=TRUE
				DELAY 1
				DELAY 0
				ADCCK1_=FALSE
				DELAY 1
			LOOP ADCCNT1_
			ADCCS1_=TRUE
		ENDSUB



		FUNCTION D1RS_()
			
			D1W_ = False	'--- Pull the line Low
			PAUSE 48,10	'--- Wait 480uS
			D1W_ = True	'--- allow line to return to high
			PAUSE 6,10	'--- Wait for presense to return (60uS)
			Presence = D1W_ '--- Get Presence signal
			PAUSE 42,10	'--- Finsih waiting out the timeslot (420uS) 420+60=480

		ENDF


		SUBROUTINE TEMP1_()

			Presence = D1RS_()
			D1W_ = $CC
			D1W_ = $44
			D1W_ = TRUE		'--- POWER ON
			PAUSE 65000,10		'--- Wait 750Ms
			PAUSE 10000,10		
			D1W_ = FALSE		'--- Power OFF
		
			D1W_ = $CC
			D1W_ = $8E		'--- Read Scratch
			
	 		'--- Read  temperature
			SHIFTINL Temp_DAta,D1W_,16
						
		ENDSUB

	
	LOOP1:

		'--- Get pH Level
		ADC1_

		'--- Get the temperature
		Temp1_

		'--- Send the data to serial port
		SEROUT TX, ADC_Data ,3,1	 
		SEROUT TX, "|",3,1 
		SEROUT TX, Temp_Data ,3,1 
		SEROUT TX, "~",3,1 

		'--- Wait for 10 minutes before sending next set of values
		FOR I = 1 TO 10
			WAIT 60000
		NEXT I
	GOTO LOOP1

	




END