107 lines
3.2 KiB
Python
107 lines
3.2 KiB
Python
import RPi.GPIO as GPIO
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import paho.mqtt.client as mqtt
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import os
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import minimalmodbus
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import time
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# Limpiar configuración previa de GPIO
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GPIO.setmode(GPIO.BCM)
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GPIO.cleanup()
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# MQTT Broker settings
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mqttBroker = "65.108.199.212"
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myhost = os.uname()[1]
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client = mqtt.Client(myhost)
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client.connect(mqttBroker, 1883)
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preferred_device = '/dev/ttyUSB0'
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fallback_device = '/dev/ttyUSB5'
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device_path = preferred_device if os.path.exists(preferred_device) else fallback_device
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modbus_device = '/dev/modbus'
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# Modbus configuration
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mb_address = 1 # Modbus address
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sensy_boi = minimalmodbus.Instrument(modbus_device, mb_address)
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sensy_boi.serial.baudrate = 9600
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sensy_boi.serial.bytesize = 8
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sensy_boi.serial.parity = minimalmodbus.serial.PARITY_NONE
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sensy_boi.serial.stopbits = 1
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sensy_boi.serial.timeout = 0.5
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sensy_boi.mode = minimalmodbus.MODE_RTU
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# Configure buffer clearing and port closing settings
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sensy_boi.clear_buffers_before_each_transaction = True
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sensy_boi.close_port_after_each_call = True
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# GPIO configuration
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PIN_17 = 17
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LuzPuerta = 18
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LuzEncendido = 23
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GPIO.setup(PIN_17, GPIO.IN, pull_up_down=GPIO.PUD_UP)
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GPIO.setup(LuzPuerta, GPIO.OUT)
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GPIO.setup(LuzEncendido, GPIO.OUT)
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# Mantener LuzEncendido en HIGH mientras el programa esté corriendo
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GPIO.output(LuzEncendido, GPIO.HIGH)
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# Lista para almacenar los datos pendientes
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pending_data = []
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def control_gpio():
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status_17 = GPIO.input(PIN_17)
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if status_17 == GPIO.LOW:
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GPIO.output(LuzPuerta, GPIO.HIGH) # Luz Roja encendida
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else:
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GPIO.output(LuzPuerta, GPIO.LOW)
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return status_17
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try:
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while True:
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# Controlar GPIO sin retraso
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status_17 = control_gpio()
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# Leer datos del sensor Modbus
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data = sensy_boi.read_registers(0, 2)
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hum = data[0] / 10
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temp = data[1] / 10
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# Datos a publicar
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payload = {
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"temperature": temp,
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"humidity": hum,
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"door_status": str(status_17)
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}
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try:
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# Intentar publicar los datos actuales
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client.publish(f"iiot/{myhost}/temperature", temp)
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client.publish(f"iiot/{myhost}/humidity", hum)
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client.publish(f"iiot/{myhost}/door/pin17", str(status_17))
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# Intentar publicar los datos pendientes
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for item in pending_data:
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client.publish(f"iiot/{myhost}/temperature", item["temperature"])
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client.publish(f"iiot/{myhost}/humidity", item["humidity"])
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client.publish(f"iiot/{myhost}/door/pin17", item["door_status"])
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pending_data.clear() # Limpiar la lista si se publicaron todos los datos
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except Exception as e:
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print(f"Error al publicar datos: {str(e)}")
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pending_data.append(payload) # Guardar los datos en memoria
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# Imprimir los datos procesados
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print("-------------------------------------")
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print(f"Temperatura = {temp}\u00B0C")
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print(f"Humedad relativa = {hum}%")
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print(f"Estado de la puerta (PIN 17) = {status_17}")
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print("-------------------------------------\n")
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time.sleep(30)
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except Exception as e:
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print(f"Error: {str(e)}")
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finally:
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GPIO.cleanup()
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print("Programa finalizado") |