server-rack-led/main.py

132 lines
4.5 KiB
Python

import time
import requests
from rpi_ws281x import *
import RPi.GPIO as GPIO
import os
from datetime import datetime
led_power = 'True'
idle_mode = 1
power_button_pressed = 'false'
# LED strip configuration:
LED_COUNT = 60 # Number of LED pixels.
LED_PIN = 18 # GPIO pin connected to the pixels (18 uses PWM!).
#LED_PIN = 10 # GPIO pin connected to the pixels (10 uses SPI /dev/spidev0.0).
LED_FREQ_HZ = 800000 # LED signal frequency in hertz (usually 800khz)
LED_DMA = 10 # DMA channel to use for generating signal (try 10)
LED_BRIGHTNESS = 255 # Set to 0 for darkest and 255 for brightest
LED_INVERT = False # True to invert the signal (when using NPN transistor level shift)
LED_CHANNEL = 0 # set to '1' for GPIOs 13, 19, 41, 45 or 53
def debug_print(message: str):
now = datetime.now()
current_time = now.strftime("%H:%M:%S")
print('[DEBUG]['+current_time+'] '+message)
def check_internet(url='http://www.google.com/', timeout=1):
try:
_ = requests.head(url, timeout=timeout)
return True
except requests.ConnectionError:
return False
def wheel(pos):
if pos < 85:
return Color(pos * 3, 255 - pos * 3, 0)
elif pos < 170:
pos -= 85
return Color(255 - pos * 3, 0, pos * 3)
else:
pos -= 170
return Color(0, pos * 3, 255 - pos * 3)
def rainbowCycle(strip, wait_ms=5, iterations=10):
for j in range(256*iterations):
if power_button_pressed == 'True':
break
elif idle_mode > 1:
break
for i in range(strip.numPixels()):
strip.setPixelColor(i, wheel((int(i * 256 / strip.numPixels()) + j) & 255))
strip.show()
time.sleep(wait_ms/1000.0)
def setColor(strip, color, wait_ms=10):
for i in range(strip.numPixels()):
strip.setPixelColor(i, color)
strip.show()
time.sleep(wait_ms/1000.0)
def blink(strip, color1, color2):
for i in range(strip.numPixels()):
strip.setPixelColor(i, color1)
strip.show()
time.sleep(1)
for i in range(strip.numPixels()):
strip.setPixelColor(i, color2)
strip.show()
time.sleep(1)
def change_idle_mode(channel):
global idle_mode
idle_mode += 1
if idle_mode == 8:
idle_mode = 1
debug_print('Change Idlemode executed')
def power_toggle(channel):
global power_button_pressed
power_button_pressed = 'True'
debug_print('Toggle Power executed')
if __name__ == '__main__':
strip = Adafruit_NeoPixel(LED_COUNT, LED_PIN, LED_FREQ_HZ, LED_DMA, LED_INVERT, LED_BRIGHTNESS, LED_CHANNEL)
strip.begin()
GPIO.setmode(GPIO.BOARD)
GPIO.setup(13, GPIO.IN, pull_up_down=GPIO.PUD_UP)
GPIO.setup(19, GPIO.IN, pull_up_down=GPIO.PUD_UP)
GPIO.add_event_detect(13, GPIO.RISING, callback=power_toggle, bouncetime=300)
GPIO.add_event_detect(19, GPIO.RISING, callback=change_idle_mode, bouncetime=300)
try:
while True:
try:
debug_print('Button pressed: '+str(power_button_pressed))
if str(power_button_pressed) == 'True':
if led_power == 'True':
led_power = 'False'
power_button_pressed = 'False'
else:
led_power = 'True'
power_button_pressed = 'False'
except:
pass
if led_power == 'True':
if check_internet() == False:
blink(strip, Color(255,0,0), Color(255,255,255))
else:
if idle_mode == 1:
rainbowCycle(strip)
elif idle_mode == 2:
setColor(strip, Color(255,0,0))
elif idle_mode == 3:
setColor(strip, Color(0,255,0))
elif idle_mode == 4:
setColor(strip, Color(0,0,255))
elif idle_mode == 5:
setColor(strip, Color(125,245,255))
elif idle_mode == 6:
setColor(strip, Color(255,0,100))
elif idle_mode == 7:
setColor(strip, Color(0,255,255))
else:
blink(strip, Color(255,0,0), Color(0,0,0))
time.sleep(1)
else:
setColor(strip, Color(0,0,0))
time.sleep(1)
except KeyboardInterrupt:
setColor(strip, Color(0,0,0))
GPIO.cleanup()