139 lines
4.6 KiB
Python
139 lines
4.6 KiB
Python
from string import whitespace
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import time
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from datetime import datetime
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import os
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try:
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import paho.mqtt.client as mqtt
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import gpiozero
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import RPi.GPIO as GPIO
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import board
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import busio
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import adafruit_bmp280
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except ImportError:
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print('Some modules are missing. Try to install them with "pip3 install -r requirements.txt"')
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print(ImportError)
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exit()
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def debug_print(message: str):
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now = datetime.now()
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current_time = now.strftime("%H:%M:%S")
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print('[DEBUG]['+current_time+'] '+message)
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def error_print(message: str):
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now = datetime.now()
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current_time = now.strftime("%H:%M:%S")
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print('[ERROR]['+current_time+'] '+message)
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#relay
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def relay_controller(pin: int, state: str):
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if state == "True":
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os.system('echo "1" > /sys/class/gpio/gpio'+str(pin)+'/value')
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debug_print("Set relay-pin "+str(pin)+" to state True")
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elif state == "False":
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os.system('echo "0" > /sys/class/gpio/gpio'+str(pin)+'/value')
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debug_print("Set relay-pin "+str(pin)+" to state False")
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else:
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error_print("Unknown state ("+state+") for relay channel "+str(pin))
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#ultrasonic
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def get_water_level():
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GPIO.setmode(GPIO.BCM)
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GPIO.setwarnings(False)
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GPIO_TRIGGER = 24
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GPIO_ECHO = 8
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GPIO.setup(GPIO_TRIGGER, GPIO.OUT)
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GPIO.setup(GPIO_ECHO, GPIO.IN)
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GPIO.output(GPIO_TRIGGER, True)
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time.sleep(0.00001)
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GPIO.output(GPIO_TRIGGER, False)
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startTime = time.time()
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StopTime = time.time()
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while GPIO.input(GPIO_ECHO) == 0:
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startTime = time.time()
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while GPIO.input(GPIO_ECHO) == 1:
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StopTime = time.time()
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TimeElapsed = StopTime - startTime
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distance = (TimeElapsed * 34300) / 2
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rounded_distance = int(distance)
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return str(rounded_distance)
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#temperature
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def get_temperature():
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i2c = busio.I2C(board.SCL, board.SDA)
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bmp280 = adafruit_bmp280.Adafruit_BMP280_I2C(i2c, address=0x76)
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rounded_temp = int(bmp280.temperature)
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return str(rounded_temp)
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print(get_water_level())
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print(get_temperature())
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def mqtt_on_connect(client, userdata, flags, rc):
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client.subscribe("strawberry-pi-greenhouse/relay/channel/1")
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client.subscribe("strawberry-pi-greenhouse/relay/channel/2")
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client.subscribe("strawberry-pi-greenhouse/relay/channel/3")
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client.subscribe("strawberry-pi-greenhouse/relay/channel/4")
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def mqtt_on_message(client, userdata, msg):
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print("topic: " ,str(msg.topic))
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print("payload: " ,str(msg.payload.decode("utf-8")))
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topic = str(msg.topic)
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payload = str(msg.payload.decode("utf-8"))
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channel_1 = 19
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channel_2 = 16
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channel_3 = 26
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channel_4 = 20
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if topic == "strawberry-pi-greenhouse/relay/channel/1":
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if payload == "on":
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relay_controller(channel_1, "True")
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elif payload == "off":
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relay_controller(channel_1, "False")
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elif topic == "strawberry-pi-greenhouse/relay/channel/2":
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if payload == "on":
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relay_controller(channel_2, "True")
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elif payload == "off":
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relay_controller(channel_2, "False")
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elif topic == "strawberry-pi-greenhouse/relay/channel/3":
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if payload == "on":
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relay_controller(channel_3, "True")
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elif payload == "off":
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relay_controller(channel_3, "False")
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elif topic == "strawberry-pi-greenhouse/relay/channel/4":
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if payload == "on":
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relay_controller(channel_4, "True")
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elif payload == "off":
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relay_controller(channel_4, "False")
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if __name__ == "__main__":
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relay_channels = ["19", "16", "26", "20"]
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for channel in relay_channels:
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os.system('echo "'+channel+'" /sys/class/gpio/export')
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os.system('echo "out" > /sys/class/gpio/gpio'+channel+'/direction')
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mqttBroker ="homeassistant.ping-mee.local"
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client = mqtt.Client("greenhouse_client")
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client.username_pw_set("mqtt", "pmMQTT_11!")
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debug_print("Connecting to MQTT Broker "+str(mqttBroker))
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client.connect(mqttBroker)
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client.on_connect = mqtt_on_connect
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client.on_message = mqtt_on_message
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client.loop_start()
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try:
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client.loop_start()
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while True:
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client.publish("strawberry-pi-greenhouse/sensor/temperature", get_temperature())
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debug_print("Published current temperature: "+get_temperature())
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client.publish("strawberry-pi-greenhouse/sensor/water-level", get_water_level())
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debug_print("Published current water level: "+get_water_level())
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time.sleep(1)
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except KeyboardInterrupt:
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for channel in relay_channels:
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os.system('echo "'+channel+'" > /sys/class/gpio/unexport')
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GPIO.cleanup() |