main.py

import network
import time
from umqtt.simple import MQTTClient
import esp32
import random # Import the random module

wifi = network.WLAN(network.STA_IF)
wifi.active(True)
wifi.connect('Wokwi-GUEST', '')

client_id = "ESP32_AJANG_1829121"
broker = "broker.emqx.io"
topik = "hello/09021021/kirimdata"

while not wifi.isconnected():
    print("Menghubungkan ke WiFi...")
    time.sleep(0.5)
print("Terhubung ke Wi-Fi!")
print("Alamat IP:", wifi.ifconfig()[0])

client = MQTTClient(client_id, broker)
client.connect()
print("Terhubung ke broker MQTT")

while True:
    suhu_raw = esp32.raw_temperature()
    suhu_celsius = (suhu_raw - 32) * 5/9

    # Add a random float between -2.0 and 2.0 to the temperature
    random_offset = random.uniform(-2.0, 2.0)
    suhu_with_random = suhu_celsius + random_offset

    print(f"Suhu ESP32 (asli): {suhu_celsius:.2f}°C")
    print(f"Random offset: {random_offset:.2f}")
    print(f"Suhu ESP32 (dengan random): {suhu_with_random:.2f}°C")

    # Use the temperature with the random offset for publishing
    pesan = str(suhu_with_random)
    client.publish(topik.encode(), pesan.encode(), 1)
    print("Pesan terkirim:", pesan)
    
    time.sleep(2)