mackerel-agent.conf

[plugin.metrics.dht11]
command = "sudo -u pi python3  /home/pi/DHT11_Python/mackerel.py"
type = "metric"

mackerel.py

import RPi.GPIO as GPIO
import dht11
import time
import datetime

# initialize GPIO
GPIO.setwarnings(True)
GPIO.setmode(GPIO.BCM)

try:
    instance = dht11.DHT11(pin=4)
    result = instance.read()

    time = int(time.time())
    if result.is_valid():
        print("custom.dht11.temp-inside\t%-3.1f\t%d" % (result.temperature, time))
        print("custom.dht11.humid-inside\t%-3.1f\t%d" % (result.humidity, time))
        print("custom.dht11.di-inside\t%-3.1f\t%d" % ((0.81*(float(result.temperature))+0.01*(float(result.humidity))*(0.99*(float(result.temperature))-14.3)+46.3), time))
except KeyboardInterrupt:
    print("Cleanup")
    GPIO.cleanup()


try:
    instance = dht11.DHT11(pin=14)
    result = instance.read()
    if result.is_valid():
        print("custom.dht11.temp-out\t%-3.1f\t%d" % (result.temperature, time))
        print("custom.dht11.humid-out\t%-3.1f\t%d" % (result.humidity, time))
        print("custom.dht11.di-out\t%-3.1f\t%d" % ((0.81*(float(result.temperature))+0.01*(float(result.humidity))*(0.99*(float(result.temperature))-14.3)+46.3), time))

except KeyboardInterrupt:
    print("Cleanup")
    GPIO.cleanup()