def waterIsLow(channel):
#Turn Blue indicator LED on
relay.relayOnOff(blueLEDPin, "on")
message = """
Subject: Mushroom Water level is Low
The Digital water level sensor was triggered, Refill the mushroom humidifier water.
"""
#send email
sendEmail.sendEmail(emailRecipients, message)
import relay sunlightPin = 5 # remember the relay uses inverted logic relay.relayOnOff(sunlightPin, "on")
def startGrowthCycle(channel):
import relay
ledpin = 26
delay = 1
relay.relayOnOff(ledpin, "on")
def waterIsHigh(channel):
relay.relayOnOff(blueLEDPin, "off")
#######################################################################################
startDate = dt.datetime.now()
endDate = startDate + dt.timedelta(weeks=timeOfGrowth)
writeDate.addDateToData("startDate", startDate.strftime("%c")) #the strftime("%c") will print as "Tue Apr 30 19:41:43 2019" for example
writeDate.addDateToData("endDate", endDate.strftime("%c")[0:10]) #just using the [0:10] shortens it to "Tue Apr 30"
#write the start and end date to single file (the LCD code will use this so it can read the dates quickly and easily)
dates = {"startDate": startDate.strftime("%c")[0:10], "endDate": endDate.strftime("%c")[0:10], "cycleStatus": "in use"}
with open("dates.json", "w") as outfile:
json.dump(dates, outfile)
#######################################################################################
#turn on green LED to indicate the grow cycle has started
#and
#tell the data in the website that the mushrooms are currently in the chamber for the three week cycle
#######################################################################################
relay.relayOnOff(greenLEDPin, "on")
writeDate.addDateToData(cycleStatus, "in use") #the website can use this
#######################################################################################
#Continuous loop while mushrooms sit in the chamber (just sunlight LED control)
#######################################################################################
daysPast = 0
while daysPast < 3*7: #until 3 weeks have past, keep turning on and off the sunlight in this loop
hour = 60*60 #one hour in seconds
onTime = 18 * hour # on time is 18 hours
offTime = 6 * hour # off time is 6 hours
#turn on sunlight (uses inverted logic because of relay)
relay.relayOnOff(sunlightPin, "off")
time.sleep(onTime)
#if the growth cycle is taking place, display this to the LCD screen
if dates["cycleStatus"].lower() == "in use":
LCDLinesDuringGrowCycle(humidity,temperature, dates)
#if the growth cycle is taking place, display this to the LCD screen
elif dates["cycleStatus"].lower() == "waiting for next batch":
LCDLinesNotDuringGrowCycle(humidity,temperature, dates)
#if the temp is out of range
if temperature > tempMax or temperature < tempMin:
#turn on the red indicator (warning) LED
relay.relayOnOff(redLEDPin, "on")
#check how long its been out of range in seconds
timeOutOfRange = time.time() - startTime
#if its been out of range for an hour...
if timeOutOfRange > 3600:
message ="""
Subject: Temperature Out Of Range
The mushroom chamber temperature has been out of range for an hour
""" + "The current temperature is: " + str(temperature) + " F"
#send email
sendEmail.sendEmail(emailRecipients, message)
#if the humidifier is already off
else:
#don't do anything
pass
#rest the Pi
time.sleep(delay)
#take another measurement
humidity, temperature = DHT22.humidityAndTempCheck(humidityInputPin)
#if the humidity is out of range
if humidity < humidMin:
#turn on the red indicator (warning) LED
relay.relayOnOff(yellowLEDPin, "on")
#check how long its been out of range in seconds
timeOutOfRange = time.time() - startTime
#if its been out of range for an hour...
if timeOutOfRange > 3600:
message = """
Subject: Humidity Out Of Range
The mushroom chamber humidity has been out of range for an hour
""" + "The current temperature is: " + str(humidity) + " %"
#send email
sendEmail.sendEmail(emailRecipients, message)