alias gas_sensor d0
# d1= Logic Switch, Dial variant (Max=30)
alias thermostat d1
# d2 = Logic Memory, must be more than 0
alias temp_variance d2
# d3 = Console, LED Display variant, optional
alias temp_disp d3

alias curr_temp r0
alias target_temp r1
alias variance r2
alias min_temp r3
alias max_temp r4
alias cooling_active r5
alias heating_active r6

define wall_heaters 24258244 
define wall_coolers -739292323
define liquid_wall_coolers -1369060582
define temp_convert 273.15

start:
yield
# establish min- and max-temps to registry
l variance temp_variance Setting
l min_temp thermostat Setting
sub min_temp min_temp variance
l max_temp thermostat Setting
add max_temp max_temp variance

# initiate target temperature
l target_temp thermostat Setting

# read ambient temp from sensor and convert to C
l curr_temp gas_sensor Temperature
sub curr_temp curr_temp temp_convert

# update display
brdns temp_disp 2
jal display

# compare current temp to max/min temp and
# initiate cooling or heating if needed
bgt curr_temp max_temp cooling
blt curr_temp min_temp heating

j start

display:
s temp_disp Setting curr_temp

j ra

cooling:
# test if coolers need to be on or not
sgt cooling_active curr_temp target_temp

# update display
brdns temp_disp 2
jal display

# send state to coolers
sb wall_coolers On cooling_active
sb liquid_wall_coolers On cooling_active

bgtz cooling_active cooling

j start

heating:
# test if heaters need to be on or not
slt heating_active curr_temp target_temp

# update display
brdns temp_disp 2
jal display

# send state to heaters
sb wall_heaters On heating_active

bgtz heating_active heating

j start