alias sensor d0
alias solar d1
alias filter d3
alias co2vent d4
alias light d5

alias filteringo2 r15
alias o2frac r14
alias pressure r13
alias pumpingco2 r12

define targetkpa 100
define GROWLIGHTHASH -1758710260

start:

bdns filter nofilter
l filteringo2 filter On

l o2frac sensor RatioOxygen
mul r1 filteringo2 0.01
sub o2frac o2frac r1 #add some hysteresis
sgt r1 o2frac 0.2
# turn on the filter if the oxygen ratio is >20%
s filter On r1

nofilter:

bdns co2vent overVent
l pressure sensor Pressure
l pumpingco2 co2vent On
sub pressure  pressure pumpingco2 # add some hysteresis
slt r1 pressure targetkpa
s co2vent On r1
overVent:

bdns solar overLight
#bdns light overLight
l r0 solar Vertical
s db Setting r0
slt r0 r0 90
sb GROWLIGHTHASH On r0
overLight:

yield
j start