53 lines
1.6 KiB
Python
53 lines
1.6 KiB
Python
import RPi.GPIO as GPIO
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import time
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import paho.mqtt.client as mqtt
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# Atur mode pin GPIO
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GPIO.setmode(GPIO.BCM)
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# Atur pin relay
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relay_pins = [20, 21, 16, 12, 13, 6, 26, 19]
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for pin in relay_pins:
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GPIO.setup(pin, GPIO.OUT)
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# Fungsi callback ketika koneksi ke broker berhasil
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def on_connect(client, userdata, flags, rc):
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print("Connected with result code "+str(rc))
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# Subscribe ke topik untuk setiap lampu
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client.subscribe("Room/lamp_schedule")
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for i in range(8):
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client.subscribe("Room/lamp" + str(i + 1))
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# Fungsi callback ketika pesan diterima dari broker
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def on_message(client, userdata, msg):
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print(msg.topic+" "+str(msg.payload))
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# Pisahkan 'lamp' dari angka yang menyusul
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lamp_index = int(msg.topic.split("/")[-1][4:]) - 1
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# Hidupkan atau matikan relay sesuai dengan pesan yang diterima
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if msg.payload == b'1':
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GPIO.output(relay_pins[lamp_index], GPIO.HIGH)
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print("Relay "+ str(lamp_index + 1) +" ON")
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# Kirim nilai E ke MQTT saat relay hidup
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client.publish("Icha/relay_status", "A")
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elif msg.payload == b'0':
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GPIO.output(relay_pins[lamp_index], GPIO.LOW)
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print("Relay "+ str(lamp_index + 1) +" OFF")
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# Kirim nilai E ke MQTT saat relay mati
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client.publish("Icha/relay_status", "B")
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# Inisialisasi client MQTT
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client = mqtt.Client()
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# Mengatur fungsi callback
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client.on_connect = on_connect
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client.on_message = on_message
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# Menghubungkan client ke broker MQTT
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client.connect("habibigarden.com", 1883, 60)
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# Loop utama
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client.loop_forever()
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# Cleanup GPIO ketika program berhenti
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GPIO.cleanup()
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