fromduon

# sensor/sensor.py
import os, time, random, json, socket
import paho.mqtt.client as mqtt

# Broker connection
MQTT_HOST = os.getenv("MQTT_HOST") or os.getenv("BROKER_IP") or "127.0.0.1"
MQTT_PORT = int(os.getenv("MQTT_PORT", "1883"))
DEVICE = os.getenv("DEVICE_ID") or socket.gethostname()

# Sleep interval control (seconds, floats allowed)