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’ convert the data to degrees C

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’ show the result

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7KH\VKRXOGEHSUHWW\FORVHWRRQHDQRWKHU0 AND ptr12 then playback n=n+1 if in1=0 then clik1

getdata: freqout 0,20,3400 low 3 xm=ptr/5+1 gosub writedata debug dec xm," "

user message beep to signal that it is running

DS1620: ’ DS1620 temperature sensor code high 13 ’ select the DS1620 shiftout 15,14,lsbfirst,[238] ’ send the "start conversions" command low 13 ’ finish the command pause 450 ’ delay for conversion high 13 ’ select the DS1620 shiftout 15,14,lsbfirst,[170] ’ send the "get data" command shiftin 15,14,lsbpre,[x] ’ get the data low 13 ’ end the command degC=x/2 ’ convert the data to degrees C xm=degC ’ morse routine expects data in variable, xm gosub writedata ’ and write the degC data debug dec xm,tab ’ show it on debug screen ’gosub morse ’ and send it as morse code (optional) AD592: ’ AD592 temperature sensor code rctime 5,0,rct ’ get the AD592 count low 5 ’ pull input low, discharge cap TK = Kal/rct*10 + (Kal//rct*10/rct) ’ calculate Kelvin TC = TK-273 ’ and convert to degrees C

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([SHULPHQW0HDVXUHPHQWDQG&RQWURO xm=TC gosub writedata debug dec xm,tab ’ gosub morse

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Photodiode: RCtime 6,1,rct high 6 light=65535/rct*/lical xm=light/2 max 255 gosub writedata debug dec light,tab

’ read the photodiode ’ discharge the photodiode capacitor ’ calculate lux ’ ready to store it in eeprom ’ store it in eeprom! ’ show it on debug screen

Conductance: xm=mhomax gosub writedata debug dec xm,cr mhomax=0

’ ’ ’ ’

goto mainloop end

’ back to await time or button ’ end of main program

store the maximum value from pump routine data to eeprom show max conductance in umho reinitialize the accumulator

’------- more goto routines -------eraselog: freqout 0,400,2550,1900 ’ sound we got here for x=0 to ptr step 5 ’ step through all used record numbers write x+log,0 ’ make them zero next debug cls,"data erased!",cr ’ message on cleared screen el1: ’ hold here until button released if in1=0 then el1 goto top playback: low 3 ’ pump off unconditional freqout 0,50,2550 ’ sound we got here! freqout 0,100,3400 debug cls,"logged data!",cr ’ message and units debug "#",32,"degC",tab,"degC",tab,"lux",tab,"umho",cr ptr=0 ’ point to start of data pb0: read ptr+log,x ’ read record number if x=0 then pb1 ’ if it is zero, this is an empty record debug dec x," " ’ show record number read ptr+1+log,degC ’ read temperature (DS1620) read ptr+2+log,TC ’ read temperature (AD592)

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([SHULPHQW0HDVXUHPHQWDQG&RQWURO read ptr+3+log,light ’ read light read ptr+4+log,umho ’ read conductance light=light*2 ’ restore light units debug dec degC,tab,dec TC,tab,dec light,tab,dec umho,cr ptr=ptr+5 ’ point to next record goto pb0 ’ loop up pb1: ’ wait for button up if in1=0 then pb1 debug rep "-"\31,cr ’ horizontal line goto mainloop ’ go back to collect more data ’ ------ subroutines -------morse: ’ enter here to send byte xm as morse code for j=1 to 0 ’ send 2 digits, tens then ones. mc = xm dig j ’ pick off the (j+1)th digit mc = %11110000011111 >> mc ’ set up pattern for morse code for i=4 to 0 ’ 5 dits and dahs freqout 0,dit2*mc.bit0(i)+dit,1900 ’ send pattern from bits of mc pause dit ’ short silence next ’ next i,dit or dah of five pause dah ’ interdigit silence next ’ next j,digit of two return ’ back to main Pump: high 9 ’ turn on the 555 count 10,100,cnt ’ count the frequency low 9 ’ turn off the 555 umho=cnt*cntcal/100 max 255 ’ calculate umho mhomax=umho min mhomax ’ keep the maximum value of umho if umho>99 then pumpoff ’ threshold to turn pump off if umho=logsiz then writeout ’ check for end of log write ptr+log,xm ’ write this field ptr=ptr+1 ’ point to next field writeout:

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