AquaCal TropiCal Heater Heat Pump Pimoroni Automation Hat main program (5V thermistor voltage divider, 85F water temp, 40F defrost)

program.py

#!/usr/bin/env python3

import time
import statistics
import automationhat

time.sleep(300)

def comp_on():
	automationhat.relay.one.on()

def comp_is_on():
	return automationhat.relay.one.is_on()

def comp_off():
	automationhat.relay.one.off()

def comp_is_off():
	return automationhat.relay.one.is_off()

def fan_on():
	automationhat.relay.two.on()

def fan_is_on():
	return automationhat.relay.two.is_on()

def fan_off():
	automationhat.relay.two.off()

def fan_is_off():
	return automationhat.relay.two.is_off()

def checkwatertemp():
	time.sleep(1)
	automationhat.output.one.on()
	time.sleep(1)
	wtemp1 = automationhat.analog[0].read()
	time.sleep(1)
	wtemp2 = automationhat.analog[0].read()
	time.sleep(1)
	wtemp3 = automationhat.analog[0].read()
	time.sleep(1)
	wtemp4 = automationhat.analog[0].read()
	time.sleep(1)
	wtemp5 = automationhat.analog[0].read()
	time.sleep(1)
	wtemp6 = automationhat.analog[0].read()
	time.sleep(1)
	wtemp7 = automationhat.analog[0].read()
	time.sleep(1)
	automationhat.output.one.off()

	return statistics.median([wtemp1, wtemp2, wtemp3, wtemp4, wtemp5, wtemp6, wtemp7])

def checkdeftemp():
	time.sleep(1)
	automationhat.output.two.on()
	time.sleep(1)
	dtemp1 = automationhat.analog[1].read()
	time.sleep(1)
	dtemp2 = automationhat.analog[1].read()
	time.sleep(1)
	dtemp3 = automationhat.analog[1].read()
	time.sleep(1)
	dtemp4 = automationhat.analog[1].read()
	time.sleep(1)
	dtemp5 = automationhat.analog[1].read()
	time.sleep(1)
	dtemp6 = automationhat.analog[1].read()
	time.sleep(1)
	dtemp7 = automationhat.analog[1].read()
	time.sleep(1)
	automationhat.output.two.off()

	return statistics.median([dtemp1, dtemp2, dtemp3, dtemp4, dtemp5, dtemp6, dtemp7])

def stop():
	comp_off()
	time.sleep(60)
	if comp_is_off():
		fan_off()
		time.sleep(1200)

def defrost():
	comp_off()
	time.sleep(60)
	if comp_is_off():
		fan_on()
		time.sleep(1200)

def run():
	fan_on()
	time.sleep(5)
	if checkdeftemp() < 3.9 and fan_is_on():
		comp_on()
	else:
		defrost()
	time.sleep(600)

while True:
	if checkwatertemp() > 3.2:
		run()
	else:
		stop()
	time.sleep(50)