138 lines
4.2 KiB
Python
138 lines
4.2 KiB
Python
from base64 import b16decode
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import time
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from datetime import datetime
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from requests import request
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try:
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from rpi_ws281x import *
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import RPi.GPIO as GPIO
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import json
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from argparse import ArgumentParser
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import paho.mqtt.client as mqtt
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except ImportError:
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print('Some modules are missing. Try to install them with "pip3 install -r requirements.txt"')
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exit()
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# LED strip configuration:
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LED_COUNT = 60 # Number of LED pixels.
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LED_PIN = 18 # GPIO pin connected to the pixels (18 uses PWM!).
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#LED_PIN = 10 # GPIO pin connected to the pixels (10 uses SPI /dev/spidev0.0).
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LED_FREQ_HZ = 800000 # LED signal frequency in hertz (usually 800khz)
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LED_DMA = 10 # DMA channel to use for generating signal (try 10)
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LED_BRIGHTNESS = 255 # Set to 0 for darkest and 255 for brightest
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LED_INVERT = False # True to invert the signal (when using NPN transistor level shift)
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LED_CHANNEL = 0 # set to '1' for GPIOs 13, 19, 41, 45 or 53
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global animation_r
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animation_r = 255
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global animation_g
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animation_g = 0
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global animation_b
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animation_b = 0
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def debug_print(message: str):
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now = datetime.now()
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current_time = now.strftime("%H:%M:%S")
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print('[DEBUG]['+current_time+'] '+message)
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def wheel(pos):
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if pos < 85:
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return Color(pos * 3, 255 - pos * 3, 0)
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elif pos < 170:
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pos -= 85
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return Color(255 - pos * 3, 0, pos * 3)
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else:
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pos -= 170
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return Color(0, pos * 3, 255 - pos * 3)
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def rainbowCycle( strip, wait_ms=5, iterations=10):
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for j in range(256*iterations):
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if mode > 0:
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break
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elif power == "False":
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break
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for i in range(strip.numPixels()):
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strip.setPixelColor(i, wheel((int(i * 256 / strip.numPixels()) + j) & 255))
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strip.show()
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time.sleep(wait_ms/1000.0)
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def setColor(strip, color, wait_ms=10):
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for i in range(strip.numPixels()):
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strip.setPixelColor(i, color)
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strip.show()
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time.sleep(wait_ms/1000.0)
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def mqtt_on_connect(client, userdata, flags, rc):
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client.subscribe("server-rack-led/power")
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client.subscribe("server-rack-led/mode")
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client.subscribe("server-rack-led/rgb")
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if __name__ == '__main__':
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def mqtt_on_message(client, userdata, msg):
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print("topic: " ,str(msg.topic))
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print("payload: " ,str(msg.payload.decode("utf-8")))
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topic = str(msg.topic)
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payload = str(msg.payload.decode("utf-8"))
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if topic == "server-rack-led/power":
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global power
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power = payload
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elif topic == "server-rack-led/rgb":
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splitted_payload = payload.split(",")
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global r
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r = str(splitted_payload[0])
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global g
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g = str(splitted_payload[1])
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global b
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b = str(splitted_payload[2])
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elif topic == "server-rack-led/mode":
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if payload == "Rainbow":
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global mode
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mode = 0
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elif payload == "Custom Color":
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mode = 1
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strip = Adafruit_NeoPixel(LED_COUNT, LED_PIN, LED_FREQ_HZ, LED_DMA, LED_INVERT, LED_BRIGHTNESS, LED_CHANNEL)
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strip.begin()
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mode = 0
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power = "True"
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global r
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r = 255
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global g
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g = 255
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global b
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b = 255
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mqttBroker ="homeassistant.ping-mee.local"
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client = mqtt.Client("server_rack_led")
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client.username_pw_set("mqtt", "pmMQTT_11!")
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debug_print("Connecting to MQTT Broker "+str(mqttBroker))
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client.connect(mqttBroker)
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client.on_connect = mqtt_on_connect
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client.on_message = mqtt_on_message
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client.publish("server-rack-led/power", "True")
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client.publish("server-rack-led/mode", "Rainbow")
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try:
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client.loop_start()
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while True:
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if power == "True":
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if mode == 0:
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rainbowCycle(strip)
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elif mode == 1:
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setColor(strip, Color(int(r), int(g), int(b)))
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time.sleep(1)
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else:
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setColor(strip, Color(0,0,0))
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time.sleep(1)
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except KeyboardInterrupt:
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client.publish("server-rack-led/power", "False")
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client.loop_stop()
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setColor(strip, Color(0,0,0))
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GPIO.cleanup()
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