a17-1

{$STAMP BS2sx}
' {$PBASIC 2.5}
ADC VAR Word
CH VAR Byte
CNT VAR Byte
CNT = 0
PAUSE 1000
HIGH 15 LOW 14 : HIGH 13 : LOW 12
DO
CH = 3 : GOSUB RD_ADC
IF ADC < 100 THEN
DO
CH = 3 : GOSUB RD_ADC
LOOP UNTIL(ADC > 100)
CNT = CNT + 1
ENDIF
CH = 5
PAUSE 300
LOOP UNTIL(CNT > 19)
LOW 15 : HIGH 14 : LOW 13 : HIGH 12
PAUSE 100
LOW 15 : LOW 14 : LOW 13 : LOW 12
STOP
RD_ADC: LOW 10 : PAUSE 2 : HIGH 10
SEROUT 10,240,[CH]
SERIN 10,240,250,Error,[ADC.BYTE0,ADC.BYTE1]
RETURN
Error: DEBUG "Error reading", CR
RETURN